Crystal Units Surface Mount Type CX2520SB (CX-2520SB) 2.5x2.0mm for Audio & Visual, Office Equipment Features RoHS Compliant Pb Free How to Order * Crystal unit for audio-visual, office equipment CX2520SB 27000 D0 P E S ZZ * Ultra-miniature and low profile (2.5x2.0x0.45mm) * Ceramic package Code * A lead free product Typical Frequencies * Reflow compatible Code Freq.(kHz) Code Freq.(kHz) Applications 13560 13560.000 30000 30000.000 * Digital Electronics 16000 16000.000 32000 32000.000 18000 18000.000 33000 33000.000 * Audio-Visual, Office Equipment 20000 20000.000 33333 33333.000 24000 24000.000 40000 40000.000 26000 26000.000 48000 48000.000 27000 27000.000 54000 54000.000 27120 27120.000 Specifications *Please inquire about frequencies other than the above. Items Symbol Specification Units Frequency Range f_nom 13560 to 60000 kHz Overtone Order OT Fundamental ---- Frequency Tolerance f_tol 50 10-6 -6 Frequency Temp. Characteristics f_tem 50 10 Motional Series Resistance R1 Table 1 ohm Level of Drive DL Table 2 W Load Capacitance CL 8 pF Operating Temp. Range T_use 10 to 70 C Storage Temp. Range T_stg 40 to 85 C Load Capacitance D0 8pF Remarks Frequency Stability 5010-6 P @ 25C ref.@ 25C Over Operating Temp. Range Operating Temperature Range E 10C to 70C Frequency Temperature Stability S 5010-6 Special ZZ Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 13560 to 15999kHz 300 16000 to 19999kHz 150 20000 to 39999kHz 100 40000 to 60000kHz 50 Table2 Level of Drive Units Level of Drive Units 13560 to 60000kHz 10 (100 max.) W ohm Dimensions (Unit : mm) Recommended Land Pattern #2 #2 0.65 #1 0.3 1.0 2.50.1 1.2 #4 0.7 NC HOT #4 1.0 #3 0.75 #1 CONNECTION (TOP VIEW) #3 HOT 1.0 0.450.1 #1 (Unit : mm) #3 2.00.1 #4 Frequency Range GND #2 - 34 - 0.5 1.2 Crystal Units Surface Mount Type CX2520SB (CX-2520SB) 2.5x2.0mm for Mobile Communications, SRWI How to Order CX2520SB 32000 D0 F L J ZZ Features * Reference frequency for telecommunication systems * Reflow compatible * Using ceramic package resulting in high reliability * Small and low profile Applications * Mobile Communications, Bluetooth, Wireless LAN RoHS Compliant Pb Free Code Typical Frequencies Code Freq.(kHz) 13560 13560.000 16000 16000.000 18000 18000.000 19200 19200.000 24000 24000.000 26000 26000.000 Code 27120 32000 38400 40000 44000 Freq.(kHz) 27120.000 32000.000 38400.000 40000.000 44000.000 *Please inquire about frequencies other than the above. Load Capacitance D0 8pF Specifications Items Symbol Specification Units Frequency Range f_nom 13560 to 60000 kHz Overtone Order OT Fundamental ---- Frequency Tolerance f_tol 10 10-6 -6 Frequency Temp. Characteristics f_tem 15 10 Motional Series Resistance R1 Table 1 ohm Level of Drive DL Table 2 W Load Capacitance CL 8 pF Operating Temp. Range T_use 30 to 85 C Storage Temp. Range T_stg 40 to 85 C Remarks Frequency Stability 1010-6 F Operating Temperature Range 30C to 85C L @ 25C ref.@ 25C Over Operating Temp. Range Frequency Temperature Stability 1510-6 J Special ZZ Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 13560 to 15999kHz 300 16000 to 19999kHz 150 20000 to 39999kHz 100 40000 to 60000kHz 50 Table2 Level of Drive Units Level of Drive Units 13560 to 60000kHz 10 (100 max.) W ohm Dimensions (Unit : mm) Recommended Land Pattern #2 #2 0.65 #1 0.3 1.0 2.50.1 1.2 #4 0.7 NC HOT #4 1.0 #3 0.75 #1 CONNECTION (TOP VIEW) #3 HOT 1.0 0.450.1 #1 (Unit : mm) #3 2.00.1 #4 Frequency Range GND #2 - 35 - 0.5 1.2 Crystal Units Surface Mount Type CX3225SB (CX-101F) 3.2x2.5mm for Audio & Visual, Office Equipment Features * Crystal unit for audio-visual, office equipment * Miniature and low profile (3.2x2.5x0.55mm) * Ceramic package * A lead free product * Reflow compatible Applications * Digital Electronics * Audio-Visual, Office Equipment RoHS Compliant Pb Free Specifications Items Symbol Specification Units Frequency Range f_nom 12000 to 54000 kHz Remarks How to Order CX3225SB 24000 D0 P E S ZZ Code Typical Frequencies Code Freq.(kHz) 12000 12000.000 13560 13560.000 14318 14318.180 14745 14745.600 16000 16000.000 18432 18432.000 20000 20000.000 22579 22579.000 24000 24000.000 24576 24576.000 Code 25000 26000 27000 27120 30000 33000 33333 40000 48000 54000 Freq.(kHz) 25000.000 26000.000 27000.000 27120.000 30000.000 33000.000 33333.000 40000.000 48000.000 54000.000 *Please inquire about frequencies other than the above. Load Capacitance D0 8pF Overtone Order OT Fundamental ---- Frequency Tolerance f_tol 50 10-6 @ 25C Frequency Temp. Characteristics f_tem 50 10-6 ref.@ 25C Over Operating Temp. Range Motional Series Resistance R1 Table 1 ohm Level of Drive DL Table 2 W Load Capacitance CL 8 pF Operating Temp. Range T_use 10 to 70 C Storage Temp. Range T_stg 40 to 85 C Frequency Stability 5010-6 P Operating Temperature Range E 10C to 70C Frequency Temperature Stability S 5010-6 Special ZZ Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 12000 to 13999kHz 300 14000 to 15999kHz 200 16000 to 26999kHz 100 27000 to 54000kHz 50 Table2 Level of Drive Units Level of Drive Units 12000 to 54000kHz 10 (100 max.) W ohm Dimensions (Unit : mm) Recommended Land Pattern (Unit : mm) #3 #2 1.85 CONNECTION #4 (TOP VIEW) #3 HOT GND 1.3 0.75 1.0 #1 #2 1.05 3.20.1 0.550.05 #1 4-R0.2 1.05 2.50.1 #4 Frequency Range HOT #4 1.0 1.2 1.0 #3 1.3 3.6 #1 #2 GND - 36 - Crystal Units Surface Mount Type CX3225SB (CX-101F) 3.2x2.5mm for Mobile Communications, SRWI How to Order CX3225SB 26000 D0 F L J ZZ Features * Reference frequency for telecommunication systems * Reflow compatible * Using ceramic package resulting in high reliability * Small and low profile Code Typical Frequencies Code Freq.(kHz) 12000 12000.000 13000 13000.000 13560 13560.000 16000 16000.000 19200 19200.000 Applications * Mobile Communications, Bluetooth, Wireless LAN Code 20000 26000 32000 38400 40000 Freq.(kHz) 20000.000 26000.000 32000.000 38400.000 40000.000 *Please inquire about frequencies other than the above. RoHS Compliant Pb Free Load Capacitance D0 8pF Specifications Items Symbol Specification Units Frequency Range f_nom 12000 to 54000 kHz Frequency Stability 1010-6 F Remarks Operating Temperature Range L 30C to 85C Overtone Order OT Fundamental ---- Frequency Tolerance f_tol 10 10-6 @ 25C Frequency Temp. Characteristics f_tem 15 10-6 ref.@ 25C Over Operating Temp. Range Motional Series Resistance R1 Table 1 ohm Level of Drive DL Table 2 W Load Capacitance CL 8 pF Operating Temp. Range T_use 30 to 85 C Storage Temp. Range T_stg 40 to 85 C Frequency Temperature Stability J 1510-6 Special ZZ Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 12000 to 13999kHz 300 14000 to 15999kHz 200 16000 to 26999kHz 100 27000 to 54000kHz 50 Table2 Level of Drive Units Level of Drive Units 12000 to 54000kHz 10 (100 max.) W ohm Dimensions (Unit : mm) Recommended Land Pattern (Unit : mm) #3 #1 #2 1.85 1.05 3.20.1 0.550.05 #1 4-R0.2 1.05 2.50.1 #4 Frequency Range #2 CONNECTION #4 (TOP VIEW) #3 HOT 1.3 0.75 1.0 GND HOT #4 1.0 1.2 1.0 #3 1.3 3.6 #1 #2 GND - 37 - Crystal Units Surface Mount Type CX4025SB (CX-4025S) 4.0x2.5mm for Mobile Communications, SRWI Features How to Order CX4025SB 26000 F0 F L J ZZ * Reference frequency for telecommunication systems * Reflow compatible * Using ceramic package resulting in high reliability * Small and low profile Code Typical Frequencies Code Freq.(kHz) 12000 12000.000 13000 13000.000 16000 16000.000 20000 20000.000 Applications * Mobile Communications, Bluetooth, Wireless LAN Code 26000 32000 40000 Freq.(kHz) 26000.000 32000.000 40000.000 *Please inquire about frequencies other than the above. Load Capacitance F0 10pF RoHS Compliant Pb Free Frequency Stability 1010-6 F Specifications Items Symbol Specification Units Frequency Range f_nom 12000 to 40000 kHz Overtone Order OT Fundamental ---- Frequency Tolerance f_tol 10 10-6 -6 Frequency Temp. Characteristics f_tem 15 10 Motional Series Resistance R1 Table 1 ohm Level of Drive DL Table 2 W Load Capacitance CL 10 pF Operating Temp. Range T_use 30 to 85 C Storage Temp. Range T_stg 40 to 85 C Remarks Operating Temperature Range L 30C to 85C Frequency Temperature Stability J 1510-6 @ 25C Special ZZ ref.@ 25C Over Operating Temp. Range Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 12000 to 19999kHz 80 20000 to 40000kHz 50 Table2 Level of Drive Units Frequency Range Level of Drive Units ohm 12000 to 40000kHz 10 (100 max.) W Dimensions (Unit : mm) Recommended Land Pattern (Unit : mm) 4.00.2 #3 #2 0.9 0.7 2 #1 CONNECTION #4 (TOP VIEW) #3 HOT GND 1.4 1.4 3.0 #4 1.0 #3 1.0 HOT #1 GND #2 GND needs to be connected to the case. - 38 - 2.75 0.45 1.6 1.15 #2 0.750.1 #1 4-R0.2 1.15 2.50.2 #4 Crystal Units Surface Mount Type CX5032SB (CX-96F) 5.0x3.2mm for Mobile Communications, SRWI How to Order CX5032SB 26000 F0 F L J ZZ Features * Reference frequency for telecommunication systems * Reflow compatible * Using ceramic package resulting in high reliability * Small and low profile Code Typical Frequencies Code Freq.(kHz) 12000 12000.000 12800 12800.000 13000 13000.000 14400 14400.000 16000 16000.000 Applications * Mobile Communications, Bluetooth, Wireless LAN Symbol Specification Units f_nom 9843.75 to 49999 50 to 120(MHz) Frequency Range Overtone Order OT Fundamental Frequency Tolerance f_tol 10 Code 19200 26000 32000 40000 48000 Freq.(kHz) 19200.000 26000.000 32000.000 40000.000 48000.000 Load Capacitance F0 10pF Specifications Items *Please inquire about frequencies other than the above. RoHS Compliant Pb Free Frequency Stability 1010-6 F Remarks Operating Temperature Range L 30C to 85C kHz ---- 3rd Overtone Frequency Temperature Stability J 1510-6 10-6 @ 25C 10-6 ref.@ 25C Over Operating Temp. Range Special ZZ ohm Frequency Temp. Characteristics f_tem 15 Motional Series Resistance R1 Table 1 Level of Drive DL Table 2 W Load Capacitance CL 10 pF Operating Temp. Range T_use 30 to 85 C Storage Temp. Range T_stg 40 to 85 C Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 9843.75 to 9999kHz Table2 Level of Drive Units Frequency Range Level of Drive 150 9843.75 to 49999kHz 10 (100 max.) 10000 to 11999kHz 80 50 to 120(MHz)(3rdO.T) 10 (100 max.) 12000 to 25999kHz 50 26000 to 49999kHz 40 50 to 120(MHz) 80 W ohm Dimensions (Unit : mm) #4 Units Recommended Land Pattern (Unit : mm) #3 3.10.1 2.6 1.0 #2 4.90.1 4.2 4-R0.2 #1 0.70.1 1.3 #1 #2 CONNECTION (TOP VIEW) #4 #3 GND HOT 2.45 1.3 HOT 0.9 #4 2.3 #3 2.1 7.0 GND #1 #2 Terminals 2 and 4 need to be connected to the case. 4.55 - 39 - 2.45 Crystal Units Surface Mount Type CX5032GB (CX-53F) 5.0x3.2mm for Audio & Visual, Office Equipment How to Order CX5032GB 48000 H0 P E S ZZ Features * Crystal unit for audio-visual, office equipment * Small and low profile (5.0x3.2x1.0mm) * Ceramic package * Product with lead free terminations * Reflow compatible Code Typical Frequencies Code Freq.(kHz) 10000 10000.000 12000 12000.000 14318 14318.180 14745 14745.600 16934 16934.400 18432 18432.000 22579 22579.200 Applications * Digital Electronics * Audio-Visual, Office Equipment RoHS Compliant Specifications Code 24000 24545 24576 27000 36000 48000 54000 Freq.(kHz) 24000.000 24545.450 24576.000 27000.000 36000.000 48000.000 54000.000 *Please inquire about frequencies other than the above. Items Symbol Specification Units Frequency Range f_nom 9843.75 to 54000 kHz Load Capacitance H0 12pF Remarks Frequency Stability 5010-6 P Overtone Order OT Fundamental ---- Frequency Tolerance f_tol 50 10-6 @ 25C Frequency Temp. Characteristics f_tem 50 10-6 ref.@ 25C Over Operating Temp. Range Motional Series Resistance R1 Table 1 ohm Level of Drive DL Table 2 W Load Capacitance CL 12 pF Operating Temp. Range T_use 10 to 70 C Storage Temp. Range T_stg 40 to 85 C Operating Temperature Range E 10C to 70C Frequency Temperature Stability S 5010-6 Special ZZ Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 9843.75 to 11999kHz 200 12000 to 13999kHz 150 14000 to 29999kHz 100 30000 to 54000kHz 50 Table2 Level of Drive Units ohm Dimensions Level of Drive 9843.75 to 15999kHz 10 (500 max.) 16000 to 24999kHz 10 (300 max.) 25000 to 54000kHz 10 (100 max.) Units W Recommended Land Pattern (Unit : mm) 3.20.2 (Unit : mm) Frequency Range 2.4 0.1 1.00.2 5.00.2 2.0 1.9 4.1 CONNECTION 1.3 2.4 1.9 1.3 - 40 - Crystal Units Surface Mount Type CX8045GB (CX-8045G) 8.0x4.5mm for Audio & Visual, Office Equipment Features * Crystal unit for audio-visual, office equipment * Small and low profile (8.0x4.5x1.8mm) * Ceramic package * Product with lead free terminations * Reflow compatible Applications * Audio-Visual, Office Equipment RoHS Compliant Specifications How to Order CX8045GB 30000 H0 P E S ZZ Code Typical Frequencies Code Freq.(kHz) 14318 14318.180 16000 16000.000 16384 16384.000 16934 16934.400 19660 19660.800 20000 20000.000 21477 21477.720 24000 24000.000 Code 24576 27000 28636 30000 32000 36000 40000 Freq.(kHz) 24576.000 27000.000 28636.000 30000.000 32000.000 36000.000 40000.000 *Please inquire about frequencies other than the above. Items Symbol Specification Units Frequency Range f_nom 7200 to 48000 kHz Overtone Order OT Fundamental ---- Frequency Tolerance f_tol 50 10-6 -6 Frequency Temp. Characteristics f_tem 50 10 Motional Series Resistance R1 Table 1 ohm Level of Drive DL Table 2 W Load Capacitance CL 12 pF Operating Temp. Range T_use 10 to 70 C Storage Temp. Range T_stg 40 to 85 C Load Capacitance H0 12pF Remarks Frequency Stability 5010-6 P @ 25C ref.@ 25C Over Operating Temp. Range Operating Temperature Range E 10C to 70C Frequency Temperature Stability S 5010-6 Special ZZ Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 7200 to 9999kHz 200 10000 to 11999kHz 150 12000 to 48000kHz 50 Table2 Level of Drive Units ohm Dimensions Level of Drive 7200 to 9999kHz 10 (500 max.) 16000 to 24999kHz 10 (300 max.) 25000 to 48000kHz 10 (100 max.) Units W Recommended Land Pattern (Unit : mm) 8.00.3 2.8 1.80.2 4.50.3 (Unit : mm) Frequency Range 2.4 2.0 2.4 6.6 CONNECTION 1.5 5.0 1.5 - 41 - Crystal Units Surface Mount Type CXB855GB (CX-5FD) 11.8x5.5mm for Audio & Visual, Office Equipment Features * Crystal unit for audio-visual, office equipment * Small and low profile (11.8x5.5x1.8mm) * Ceramic package * Product with lead free terminations * Reflow compatible Applications * Digital Electronics * Audio-Visual, Office Equipment RoHS Compliant Frequency Range Code Typical Frequencies Code Freq.(kHz) 03579 3579.545 03686 3686.400 04000 4000.000 06000 6000.000 08000 8000.000 12000 12000.000 Code 14318 16000 16934 19660 20000 Freq.(kHz) 14318.180 16000.000 16934.400 19660.800 20000.000 *Please inquire about frequencies other than the above. Load Capacitance H0 12pF Specifications Items How to Order CXB855GB 03579 H0 P E S ZZ Symbol Specification f_nom 3500 to 28999 Overtone Order OT Fundamental Frequency Tolerance f_tol 50 Units 29 to 60(MHz) kHz 3rd Overtone ---- Remarks Operating Temperature Range E 10C to 70C 10-6 @ 25C -6 Frequency Temp. Characteristics f_tem 50 10 Motional Series Resistance R1 Table 1 ohm Level of Drive DL Table 2 W Load Capacitance CL 12 pF Operating Temp. Range T_use 10 to 70 C Storage Temp. Range T_stg 40 to 85 C Frequency Stability 5010-6 P ref.@ 25C Over Operating Temp. Range Frequency Temperature Stability S 5010-6 Special ZZ Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 3500 to 3999kHz Table2 Level of Drive Units Frequency Range Level of Drive 300 3500 to 15999kHz 10 (500 max.) 4000 to 7999kHz 200 16000 to 28999kHz 10 (300 max.) 8000 to 11999kHz 120 29 to 60MHz 10 (300 max.) 12000 to 28999kHz 100 29 to 60MHz 150 ohm Dimensions (Unit : mm) 2.5 1.5 5.0 CONNECTION 7.0 - 42 - 6.5 2.7 4.0 2.5 1.80.2 7.7 11.80.3 2.0 W Recommended Land Pattern 5.50.3 (Unit : mm) Units Crystal Units Leaded Type CXH49SFB (HC-49/U-S) for Audio & Visual, Office Equipment Features * Crystal unit for audio-visual, office equipment * Metal package, leaded type * A resistance weld hermetic sealed type * Suitable for high density assembly and mass production How to Order CXH49SFB 03579 H0 P E S ZZ Code 03200 03579 03686 04000 04194 04332 04433 04500 04915 06000 06144 07200 07372 08000 10000 10240 10738 Applications * Digital Electronics * Audio-Visual, Office Equipment RoHS Compliant Pb Free Specifications Items Symbol Specification Units Frequency Range f_nom 3200 to 33999, 30 to 60(MHz) kHz Overtone Order OT Fundamental, 3rd Overtone ---- Frequency Tolerance f_tol 50 10-6 @ 25C Frequency Temp. Characteristics f_tem 50 10-6 ref.@ 25C Over Operating Temp. Range Motional Series Resistance R1 Table 1 ohm Level of Drive DL Table 2 W Load Capacitance CL 12 pF Operating Temp. Range T_use 10 to 70 C Storage Temp. Range T_stg 40 to 85 C Code Typical Frequencies Remarks Freq.(kHz) 3200.000 3579.545 3686.400 4000.000 4194.304 4332.000 4433.619 4500.000 4915.200 6000.000 6144.000 7200.000 7372.800 8000.000 10000.000 10240.000 10738.635 Code 11000 11059 12000 12288 13500 14318 16000 16934 17280 17734 20000 21477 24000 24576 25000 27000 Freq.(kHz) 11000.000 11059.200 12000.000 12288.000 13500.000 14318.180 16000.000 16934.400 17280.000 17734.476 20000.000 21477.270 24000.000 24576.000 25000.000 27000.000 *Please inquire about frequencies other than the above. Load Capacitance H0 12pF Frequency Stability 5010-6 P Operating Temperature Range E 10C to 70C Frequency Temperature Stability S 5010-6 Special ZZ Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 3200 to 3499kHz 300 3500 to 4099kHz 150 4100 to 4799kHz 120 4800 to 5999kHz 100 6000 to 11999kHz 90 12000 to 13499kHz 70 13500 to 33999kHz 50 30 to 60MHz 150 5.0max. 3.8max. (Unit : mm) 201 3.5max. 10.3max. Units ohm Recommended Land Pattern 11.0max. Table2 Level of Drive 0.430.05 4.880.2 - 43 - Frequency Range Level of Drive 3200 to 15999kHz 10 (500 max.) 16000 to 24999kHz 10 (300 max.) 25000 to 33999kHz 10 (100 max.) 30 to 60MHz 10 (300 max.) Units W Crystal Units Surface Mount Leaded Type CXZ49GFB (CX-49G) for Audio & Visual, Office Equipment Features * Crystal unit for audio-visual, office equipment * Metal package, leaded type * A resistance weld hermetic sealed type * Suitable for high density assembly and mass production How to Order CXZ49GFB 03579 H0 P E S ZZ Code 03200 03579 03686 04000 04194 04332 04433 04500 04915 06000 06144 07200 07372 08000 10000 10240 10738 Applications * Digital Electronics * Audio-Visual, Office Equipment RoHS Compliant Pb Free Specifications Items Symbol Specification Units Frequency Range f_nom 3200 to 33999, 30 to 60(MHz) kHz Overtone Order OT Fundamental, 3rd Overtone ---- Frequency Tolerance f_tol 50 10-6 50 -6 Frequency Temp. Characteristics f_tem 10 Motional Series Resistance R1 Table 1 ohm Level of Drive DL Table 2 W Load Capacitance CL 12 pF Operating Temp. Range T_use 10 to 70 C T_stg 40 to 85 C Storage Temp. Range Code Typical Frequencies Remarks Freq.(kHz) 3200.000 3579.545 3686.400 4000.000 4194.304 4332.000 4433.619 4500.000 4915.200 6000.000 6144.000 7200.000 7372.800 8000.000 10000.000 10240.000 10738.635 Code 11000 11059 12000 12288 13500 14318 16000 16934 17280 17734 20000 21477 24000 24576 25000 27000 Freq.(kHz) 11000.000 11059.200 12000.000 12288.000 13500.000 14318.180 16000.000 16934.400 17280.000 17734.476 20000.000 21477.270 24000.000 24576.000 25000.000 27000.000 *Please inquire about frequencies other than the above. @ 25C ref.@ 25C Over Operating Temp. Range Load Capacitance H0 12pF Frequency Stability 5010-6 P Operating Temperature Range E 10C to 70C Frequency Temperature Stability S 5010-6 Special ZZ Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 3200 to 3499kHz 300 3500 to 4099kHz 150 4100 to 4799kHz 120 4800 to 5999kHz 100 6000 to 11999kHz 90 12000 to 13499kHz 70 13500 to 33999kHz 50 30 to 60MHz 150 Table2 Level of Drive Units ohm Frequency Range Level of Drive 3200 to 15999kHz 10 (500 max.) 16000 to 24999kHz 10 (300 max.) 25000 to 33999kHz 10 (100 max.) 30 to 60MHz 10 (300 max.) Recommended Land Pattern Dimensions 2.0 4.5max. 0.7 4.8max. 3.81max. 5.5 9.5 0.60.1 4.8max. 10.80.2 0.2max. 4.8max. 4.50.1 - 44 - W (Unit : mm) 10.21max. 12.30.2 Units Crystal Units Surface Mount Type CX5032GA (CX-53G) 5.0x3.2mm for Automotive Features * Crystal unit for automotive electronics * Small and low profile (5.0x3.2x1.3mm) * Ceramic package * Product with lead free terminations * Reflow compatible Applications * Engine Control How to Order CX5032GA 16000 H0 Q S W ZZ Code Typical Frequencies Code Freq.(kHz) 10000 10000.000 12000 12000.000 15000 15000.000 16000 16000.000 Code 18000 20000 24000 25000 Freq.(kHz) 18000.000 20000.000 24000.000 25000.000 *Please inquire about frequencies other than the above. Load Capacitance H0 12pF RoHS Compliant Frequency Stability 10010-6 Q Specifications Items Symbol Specification Units Frequency Range f_nom 9843.75 to 40000 kHz Overtone Order OT Fundamental ---- Frequency Tolerance f_tol 100 10-6 -6 Frequency Temp. Characteristics f_tem 200 10 Motional Series Resistance R1 Table 1 ohm Level of Drive DL Table 2 W Load Capacitance CL 12 pF Operating Temp. Range T_use 40 to 125 C Storage Temp. Range T_stg 40 to 150 C Remarks Operating Temperature Range 40C to 125C S Frequency Temperature Stability W 20010-6 @ 25C ref.@ 25C Over Operating Temp. Range Special ZZ Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 9843.75 to 11999kHz 200 12000 to 13999kHz 150 14000 to 29999kHz 100 30000 to 40000kHz 50 Table2 Level of Drive Units ohm Dimensions Level of Drive 9843.75 to 15999kHz 10 (500 max.) 16000 to 24999kHz 10 (300 max.) 25000 to 40000kHz 10 (100 max.) Units W Recommended Land Pattern (Unit : mm) 3.20.2 (Unit : mm) Frequency Range 2.4 1.30.2 5.00.2 1.9 2.0 4.1 CONNECTION 1.3 2.4 1.9 1.3 - 45 - Crystal Units Surface Mount Type CX8045JA (CX-17F) 8.0x4.5mm for Automotive Features * Crystal unit for automotive electronics * Small and low profile (8.0x4.5x1.9mm) * Ceramic package, J lead type * Product with lead free terminations * Reflow compatible Applications * Engine Control, TPMS RoHS Compliant How to Order CX8045JA 08000 H0 Q S W ZZ Code Typical Frequencies Code Freq.(kHz) 08000 8000.000 09843 9843.750 10000 10000.000 12000 12000.000 13560 13560.000 14000 14000.000 Code 16000 18000 20000 24000 25000 30000 Freq.(kHz) 16000.000 18000.000 20000.000 24000.000 25000.000 30000.000 *Please inquire about frequencies other than the above. Load Capacitance H0 12pF Specifications Items Symbol Specification Units Frequency Range f_nom 8000 to 30000 kHz Overtone Order OT Fundamental ---- Frequency Tolerance f_tol 100 10-6 -6 Frequency Temp. Characteristics f_tem 200 10 Motional Series Resistance R1 Table 1 ohm Level of Drive DL Table 2 W Load Capacitance CL 12 pF Operating Temp. Range T_use 40 to 125 C Storage Temp. Range T_stg 40 to 150 C Remarks Frequency Stability 10010-6 Q Operating Temperature Range S 40C to 125C @ 25C ref.@ 25C Over Operating Temp. Range Frequency Temperature Stability W 20010-6 Special ZZ Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 8000 to 9999kHz 200 10000 to 11999kHz 150 12000 to 30000kHz 100 Table2 Level of Drive Units ohm Dimensions Level of Drive 8000 to 15999kHz 10 (500 max.) 16000 to 24999kHz 10 (300 max.) 25000 to 30000kHz 10 (100 max.) W 1.7 (Unit : mm) 1.7 3.0 2.2 0.8 0.1 3.0 1.90.2 8.00.2 Units Recommended Land Pattern 4.50.2 (Unit : mm) Frequency Range 7.1 CONNECTION 0.9 - 46 - Crystal Units Surface Mount Type CXB855GA (CX-5FW) 11.8x5.5mm for Automotive Features * Crystal unit for automotive electronics * Small and low profile (11.85.52.5mm) * Ceramic package * Product with lead free terminations * Reflow compatible Applications * Engine Control Code Typical Frequencies Code Freq.(kHz) 04000 4000.000 05000 5000.000 06000 6000.000 08000 8000.000 10000 10000.000 Code 12000 16000 18000 20000 Freq.(kHz) 12000.000 16000.000 18000.000 20000.000 *Please inquire about frequencies other than the above. RoHS Compliant Load Capacitance H0 12pF Specifications Specification How to Order CXB855GA 06000 H0 Q S W ZZ Units Frequency Stability 10010-6 Q Items Symbol Remarks Frequency Range f_nom 3500 to 20000 kHz Overtone Order OT Fundamental ---- Frequency Tolerance f_tol 100 10-6 @ 25C Frequency Temp. Characteristics f_tem 200 10-6 ref.@ 25C Over Operating Temp. Range Motional Series Resistance R1 Table 1 ohm Level of Drive DL Table 2 W Load Capacitance CL 12 pF Operating Temp. Range T_use 40 to 125 C Storage Temp. Range T_stg 40 to 125 C Operating Temperature Range S 40C to 125C Frequency Temperature Stability W 20010-6 Special ZZ Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 3500 to 3999kHz Table2 Level of Drive Units Frequency Range Level of Drive 300 3500 to 15999kHz 10 (500 max.) 4000 to 7999kHz 200 16000 to 20000kHz 10 (300 max.) 8000 to 11999kHz 120 12000 to 20000kHz 100 ohm Dimensions (Unit : mm) 2.5 1.5 5.0 CONNECTION 7.0 - 47 - 6.5 2.7 4.0 2.5 2.50.3 7.7 11.80.3 2.0 W Recommended Land Pattern 5.50.3 (Unit : mm) Units Crystal Units Leaded Type CXH49SFA (HC-49/U-S) for Automotive Features * Crystal unit for automotive electronics * Metal package, leaded type * A resistance weld hermetic sealed type * Suitable for high density assembly and mass production Applications * Engine Control Code 12000 16000 18000 20000 Freq.(kHz) 12000.000 16000.000 18000.000 20000.000 Load Capacitance H0 12pF Specifications Specification Code Typical Frequencies Code Freq.(kHz) 04000 4000.000 05000 5000.000 06000 6000.000 08000 8000.000 10000 10000.000 *Please inquire about frequencies other than the above. RoHS Compliant Pb Free How to Order CXH49SFA 06000 H0 Q S W ZZ Units Frequency Stability 10010-6 Q Items Symbol Remarks Frequency Range f_nom 3200 to 20000 kHz Overtone Order OT Fundamental ---- Frequency Tolerance f_tol 100 10-6 @ 25C Frequency Temp. Characteristics f_tem 200 10-6 ref.@ 25C Over Operating Temp. Range Motional Series Resistance R1 Table 1 ohm Level of Drive DL Table 2 W Load Capacitance CL 12 pF Operating Temp. Range T_use 40 to 125 C Storage Temp. Range T_stg 40 to 125 C Operating Temperature Range S 40C to 125C Frequency Temperature Stability W 20010-6 Special ZZ Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 3200 to 3499kHz Table2 Level of Drive Units Frequency Range Level of Drive 300 3200 to 15999kHz 10 (500 max.) 3500 to 4099kHz 150 16000 to 20000kHz 10 (300 max.) 4100 to 4799kHz 120 4800 to 5999kHz 100 6000 to 11999kHz 90 12000 to 13499kHz 70 13500 to 20000kHz 50 ohm Dimensions 201 3.5max. 10.3max. 5.0max. 11.00max. 3.8max. (Unit : mm) 0.430.05 4.880.2 - 48 - Units W Crystal Units Surface Mount Leaded Type CXZ49FFA (CX-49F) for Automotive Features * Crystal unit for automotive electronics * Metal package, leaded type * A resistance weld hermetic sealed type * Suitable for high density assembly and mass production Applications * Engine Control Code Typical Frequencies Code Freq.(kHz) 04000 4000.000 05000 5000.000 06000 6000.000 08000 8000.000 10000 10000.000 Code 12000 16000 18000 20000 Freq.(kHz) 12000.000 16000.000 18000.000 20000.000 *Please inquire about frequencies other than the above. RoHS Compliant Pb Free How to Order CXZ49FFA 06000 H0 Q S W ZZ Load Capacitance H0 12pF Specifications Specification Units Frequency Stability 10010-6 Q Items Symbol Remarks Frequency Range f_nom 3200 to 20000 kHz Overtone Order OT Fundamental ---- Frequency Tolerance f_tol 100 10-6 @ 25C Frequency Temp. Characteristics f_tem 200 10-6 ref.@ 25C Over Operating Temp. Range Motional Series Resistance R1 Table 1 ohm Level of Drive DL Table 2 W Load Capacitance CL 12 pF Operating Temp. Range T_use 40 to 125 C Storage Temp. Range T_stg 40 to 125 C Operating Temperature Range S 40C to 125C Frequency Temperature Stability W 20010-6 Special ZZ Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 3200 to 3499kHz Table2 Level of Drive Units Frequency Range Level of Drive 300 3200 to 15999kHz 10 (500 max.) 3500 to 4099kHz 150 16000 to 20000kHz 10 (300 max.) 4100 to 4799kHz 120 4800 to 5999kHz 100 6000 to 11999kHz 90 12000 to 13499kHz 70 13500 to 20000kHz 50 Units W ohm Dimensions (Unit : mm) Recommended Land Pattern (Unit : mm) 2.8 -0 +0.2 3.00.2 1.4 5.0 CONNECTION 4.880.2 - 49 - 4.0 2.7 1.6 1.00.1 1.6 5.00.2 0.8 1.0 1.9 2.5 5.00.3 3.450.1 11.40.3 Crystal Units Surface Mount Leaded Type CXZ49LPA (CX-49L) for Automotive How to Order CXZ49LFA 06000 H0 Q S W ZZ Features * Crystal unit for automotive electronics * Metal package, leaded type * A resistance weld hermetic sealed type * Suitable for high density assembly and mass production Code Typical Frequencies Code Freq.(kHz) 04000 4000.000 05000 5000.000 06000 6000.000 08000 8000.000 10000 10000.000 Applications * Engine Control Code 12000 16000 18000 20000 Freq.(kHz) 12000.000 16000.000 18000.000 20000.000 *Please inquire about frequencies other than the above. Load Capacitance H0 12pF Specifications Specification Units Frequency Stability 10010-6 Q Items Symbol Remarks Frequency Range f_nom 3200 to 20000 kHz Overtone Order OT Fundamental ---- Frequency Tolerance f_tol 100 10-6 @ 25C Frequency Temp. Characteristics f_tem 200 10-6 ref.@ 25C Over Operating Temp. Range Motional Series Resistance R1 Table 1 ohm Level of Drive DL Table 2 W Load Capacitance CL 12 pF Operating Temp. Range T_use 40 to 125 C Storage Temp. Range T_stg 40 to 125 C Operating Temperature Range S 40C to 125C Frequency Temperature Stability W 20010-6 Special ZZ Custom Specification * Please inqurie about specifications other than the above. Table1 Motional Series Resistances Frequency Range Motional Series Resistance 3200 to 3499kHz Table2 Level of Drive Units Frequency Range Level of Drive 300 3200 to 15999kHz 10 (500 max.) 3500 to 4099kHz 150 16000 to 20000kHz 10 (300 max.) 4100 to 4799kHz 120 4800 to 5999kHz 100 6000 to 11999kHz 90 12000 to 13499kHz 70 13500 to 20000kHz 50 (Unit : mm) 3.00.1 Recommended Land Pattern (Unit : mm) t 0.20 3.3 4.65max. 3.3 5.3max. 4.3 0.250.1 10.8 0.8~2.4 1.40.3 0.7~1.1 9.8max. 0.05 0.43 0.03 4.0 1.40.2 5.08max. 5.08max. W ohm Dimensions 4.880.2 Units 2.0 2.0 4.88 11.05max. - 50 - Handling Notes 1. Shock & Drop * Vibration Do not inflict excessive shock and mechanical vibration that exceeds the norm, such as hitting or mistakenly dropping, when transporting and mounting on a board. There are cases when pieces of crystal break, and pieces that are used become damaged, and become inoperable. When a shock or vibration that exceeds the norm has been inflicted, make sure to check the characteristics. 2. Cleaning Since a crystal piece can be broken by resonance when a crystal device is cleaned by ultrasonic cleaning. Be careful when carrying out ultrasonic cleaning. 3. Soldering conditions To maintain the product reliability, please follow recommended conditions. Standard soldering iron conditions Crystal Units Soldering iron 280C to 340C Time 31/0sec. max. Reflow conditions (Example) Temperature(C) 260C5C 10sec.(max.) 200C min. 30-45sec. Hold-Time 1-2min. Cool Down 2.5-5C/s Ramp-Up 1-3C/s Time(sec.) Crystal Units Recommended reflow Conditions vary depending upon products. Please check with the respective specification for details. 4. Mounting Precautions Leaded Devices The special glass, located where the lead of the retainer base comes out, is aligned with the coefficient of thermal expansion of the lead, If the glass is damaged and cracks appear, there may be cases in which performance deteriorates and it fails to operate. Consequently, when making the device adhere closely and applying solder, align the gap of the hole of the board with the gap of the lead and insert without excessive force. When making the device adhere closely to a through hole board and applying solder, be careful that the solder does not get into the metal part of the retainer base and cause a short. Putting in an insulation spacer is one more method of preventing a short circuit. When the lead is mounted floating, fix it as far as possible so that contact with other parts and the breakage due to the fatigue, and the mechanical resonance of the lead will not occur. When the lead is bent and used, do not bend the lead directly from the base, separate it 0.5mm or more and then bend it. When bending, before attaching to the board, fix the place where the lead comes out in advance and attach it after bending so that a crack does not occur in the glass part. Surface Mount Devices The lead of the device and the pattern of the board is soldered on the surface. Since extreme deformation of the board tears off the pattern, tears off the lead metal, cracks the solder and damages the sealed part of the device and there are cases in which performance deteriorates and operation fails, use it within the stipulated bending conditions. Due to the small cracks in the board resulting from mounting, please pay sufficient attention when attaching a device at the position where the warping of the board is great. When using an automatic loading machine, as far as possible, select a type that has a small impact and use it while confirming that there is no damage. Surface mount devices are NOT flow soldering compatible. 5. Storage Condition Since the long hour high temperature and low temperature storage, as well as the storage at high humidity are causes of deterioration in frequency accuracy and solderability. Parts should be stored in temperature range of -5 to +40C, humidity 40 to 60% RH, and avoid direct sunlight. Then use within 6 months. - 51 - Handling Notes For Proper Use of Crystal Units 1. Characteristics of crystal units The thickness of crystal vibrator of the AT cut crystal unit as described in the previous page differs depending on the overtone mode. (1) Relationship between thickness of crystal blank and oscillation frequency Cut angle/mode overtone Frequency range (MHz) Formula of thickness of crystal blank AT/Fundamental mode 3.5 to 33 1.67/f AT/3'rd O. T 33 to 100 5.01/f AT/5'th O. T 100 to 150 8.35/f AT/7'th O. T 150 to 200 11.69/f f : Series resonance frequency (MHz) In case of calculating the thickness of AT-cut 16MHz t=1.67/16=0.104(mm) (2) Examples of specifications for frequency-temperature characteristics The frequency-temperature characteristics of the AT cut crystal unit are tertiary curves. The diagram below shows examples of the tertiary curves that pass temperature range and frequency deviation specifications. The range enclosed by the smaller rectangular satisfies the following specification: 1010-6 (-10 to 60: 25C) The range enclosed by the larger rectangular satisfies the following specification: 5010-6 (-20 to 70: 25C) Temperature (C) 70 70 50 30 10 10 30 50 70 90 110 60 50 Frequency deviation f / f (106) 40 30 20 10 0 10 20 30 40 50 60 70 * These are examples. Required frequency-temperature specifications are determined through individual consultations. (3) Equivalent electric circuit and equivalent constant of crystal unit The following equivalent constants are used near the resonance frequency. L1 : Motional inductance in the equivalent electric circuit L1 C1 R1 C1 : Motional capacitance in the equivalent electric circuit R : Motional resistance in the equivalent electric circuit C0 : Parallel capacitance in the equivalent electric circuit C0 Equivalent electric circuit of a quarts crystal unit - 52 - Handling Notes (4) Items calculated by equivalent constants and load capacitance 1 2 L1 C1 f s: Series resonance frequency fs f p: Parallel resonance frequency 1 C C 2 L 1 0 1 C 0 C 1 C 0 C1 fp : Capacitance ratio C1 1 2 (C 0 C L ) f L : Load resonance frequency fL fs R L : Load resistance R L R 1 1 C L : Load capacitance CL C1 2 Q : Quality factor Q 2 f s L 1 1 R1 2 f s C1 R1 C0 CL 2 1 C 0 (f L /f s )1 The equation f L shows that f L varies as load capacitance C L connected to the crystal unit changes and that f L becomes larger as C L becomes smaller. The equation R L shows the change in impedance with a load capacitance connected. The impedance of crystal unit becomes larger as C L becomes smaller. 2. Oscillation circuit and crystal unit (1) Equivalent circuit of oscillation circuit and oscillation conditions A simplified equivalent circuit is shown below. Crystal unit Oscillation circuit CL -R Crystal unit Oscillation circuit C L = -X C XL RL C L : Load capacitance -R : Negative resistance X L : Reactance of crystal unit -X C : Reactance of oscillation circuit R L : Load resonance resistance -R - 53 - Handling Notes The oscillation start-up conditions are described as R L R and in order to oscillate the crystal unit accurately, it must be designed such that the negative resistance of the oscillation circuit becomes bigger comparing with the resonance resistance value at the time of loading. This ratio is called oscillation margin degree MOSC and it is one of critical factors when designing the oscillation circuit and is described as below. For oscillation circuit designing conditions, it is recommended that an oscillation circuit be designed using a negative resistance of a value five to ten times or more larger than RL calculated from the resonance resistance specification value. MOSC R / R L 5 In a steady oscillation state, the load resonance resistance is given as follows: R L R The mutual conductance of the oscillation circuit decreases after the oscillation has started to continuously compensate for the power loss due to the load resonance resistance of the crystal unit, which continues oscillation. The frequency condition is given as follows: XL XC, XL XC 0 As shown in the following figure, the reactance of the crystal unit varies to a value matching the load capacitance of the oscillation circuit C L XC. Thus an oscillation frequency is determined. +X fp fs fL f s : Series resonance frequency Reactance f L : Load resonance frequency Le -1/C L Admittance -X - 54 - Frequency f p : Parallel resonance frequency Handling Notes (2) Changes of load capacitance and oscillation frequency 800 As shown above, the series resonance frequency of the crystal unit changes with load capacitance C L of the oscillation circuit. In the actual oscillation circuit, however, fine adjustments of oscillation frequencies are carried out by varying C L by the trimmer capacitor or the like. The following figure shows an example of load capacitance characteristics. The slope of the characteristics varies depending on the frequency, shape, the number of overtone mode, etc. 700 Load capacity characteristic f/f (10 -6) 600 500 400 300 200 100 0 3. Crystal oscillation circuit 0 10 20 30 40 50 60 C L (pF) CMOS fundamental crystal oscillation circuit (1) CMOS fundamental crystal oscillation circuit R f = 1M As shown above, the series resonance frequency of the crystal The figure on the right shows a standard CMOS inverter crystal oscillation circuit for oscillating crystal unit with fundamental mode. * Rx is an element to reduce excitation current of the crystal unit preventing frequency fluctuation, but Rx is not used in some cases. Buffer Xtal Rd Rx C1 Variation of negative resistance with condenser capacity Condenser capasityC (C 1 =C 2)(pF) 0 10 20 30 40 50 -100 Negative resistance Characteristics of the circuit when load capacitances C1 and C2 are changed under the condition of C1 = C2 are shown in the figure on the right. It is not desirable that the excessive increase of the value of condenser leads to a decrease of the negative resistance resulting in increasing the possibility of oscillation failure. C2 -200 () -5K 16.0MHz -500 10.0MHz -1K 3.579545MHz -2K -10K Frequency characteristics of negative resistance Frequency(MHz) 2 Negative resistance Rd mainly adjusts frequency characteristics of the negative resistance and is used to prevent oscillating by third Overtone mode. In case of a bigger circuit of the negative resistance, there is a case it is used to prevent the abnormal oscillation. () 6 8 10 12 14 16 -100 -200 C 1 =C 2=10pF -500 -1K -2K -5K -10K - 55 - 4 Resistance of Rd 3.5 to 6.9MHz=2.2k 7.0 to 16MHz=220 Handling Notes Selection of ICs and circuit constants by frequency bands Frequency 3 to 4.9(MHz) 5 to 6.9(MHz) 7 to 9.9(MHz) 10 to 19.9(MHz) TC74HCU04A TC7SU04F TC7WU04FU TC4069UB TC4SU69F IC 20 to 30(MHz) TC74VHCU04 TC7SHU04F TC7WHU04FU 1M Rf Rd *1 Rx *2 C 1, C 2 *3 1500() 470() 0() 0() 0() 6 to 15(pF) 6 to 15(pF) 0 to 1500 6 to 22(pF) *1: Necessary for preventing overtone oscillation and must be changed depending on the frequency band or the C1 and C2 values. *2: Used to reduce excitation current of the crystal unit. Necessary for stable operation of small-sized crystal units. *3: The optimum value differs with the values of load capacitance and Rd. (2) CMOS overtone crystal oscillation circuit This figure shows a standard CMOS inverter crystal oscillation circuit to oscillate a crystal unit using the overtone mode. CMOS overtone crystal oscillation circuit R f = 1M X-tal L1 R1 C3 1000pF C1 C2 L2 There are same cases when L1 and R1 are matched to the value of load capacitance. (3) Selection of ICs and circuit constants by frequency bands Frequency range 20 to 60(MHz) C1 TC74VHCU04 TC7SHU04F TC7WHU04FU 3 to 10pF C2 10 to 22pF IC (4) Method of selecting circuit constants and functions of elements C1 : Forms load capacitance of the circuit together with C2, L1 and L2. A value of approx. 5pF is used. C2 : Forms load capacitance of the circuit together with C1, L1 and L2. Prevents fundamental wave oscillation. Shall be selected so that C2 comes between the third overtone frequency at which resonance frequency with L2 is to make oscillation and 1/3 of the third overtone frequency. A value of 10 to 22pF is used. C3 : A bypath capacitor L1 : A coil to adjust load capacitance of the oscillation circuit to a value near the series. A value of several H is used. L2 : Forms load capacitance of the circuit together with C1, C2 and L1. Prevents fundamental wave oscillation. Shall be selected so that L2 comes between the third overtone frequency at which resonance frequency with C2 is to make oscillation and 1/3 of the third overtone frequency. A value of 10 to 22pF is used. R1 : A Q dump resistor for L1 . As an element for preventing self-excited oscillation, A value of several k to several tens of k is used. * L1 and R1 might not be used. - 56 - Handling Notes (5) Method of checking oscillation circuit Some ICs have a low upper-limit value of usable frequency, so refer to individual IC catalog to make sure that the IC can oscillate a crystal unit with an adequate negative resistance. The following figure shows an example of a CMOS oscillation circuit. Check resistance Rsup is connected in series with the crystal unit to check the negative resistance. Use 3 to 22pF for C1 and C2, and see the table below for values of check resistance. Rf Frequency range Values of check resistance 3.5 to 4.5MHz 1.5k 4.6 to 6.0MHz 1.0k 6.1 to 10.0MHz 800 10.1 to 14.0MHz 500 14.1 to 20.0MHz 400 Rsup C1 C2 Using a spectrum analyzer or oscilloscope, check that every oscillation is normally activated while turning the power on and off several times. For oscillation circuits with no power regulator ICs, carefully check changes in the negative resistance against supply voltage and in frequencies. When oscillation is normal, remove the check resistance before using the crystal circuit. If oscillation is unstable or is not generated, gradually decrease the values of C1 and C2 until normal oscillation is obtained. If normal oscillation cannot be generated near 10MHz or near 20MHz, replace the IC with a new one suitable for higher frequencies. (6) Load capacitance and oscillation frequency of transistor/fundamental crystal oscillation circuit Viewed from the connection terminals of a crystal unit, the load capacitance C L of an oscillation circuit is generally comprised of C1, C t, C2, and C3 if stray capacitance of the circuit and the capacitance between base and emitter of the transistor are ignored. Since trimmer capacitor is adjusted to C T = MIN. to MAX. for zero adjustment of the oscillation frequency, the value of C L at this time can be obtained from the following equation. C L MIN. 1 1 1 C 1 C T C2 C3 1 to C L MAX. 1 1 1 C 1 C T C2 C3 1 When these calculation results are substituted for the following equation for load resonance frequency, the oscillation frequency can be obtained. fL fs C1 1 2 (C 0 C L ) - 57 - Handling Notes Vcc C4 0.01 R1 C2 C5 C1 Ct OUT R2 C3 R3 Select each circuit constant so that the adjustment ranges of upper and lower frequencies of this circuit are even on the basis of the frequency of a single crystal unit measured using a specified load capacity, and that the margin of 8 to 10 10-6 of the room temperature deviation of the crystal unit can be reserved. To prevent the decrease in the negative resistance, always connect the crystal unit to the base of the transistor. For transistors used for oscillation circuits, hfe and fT are important. To obtain the large negative resistance with small current consumption, select a transistor for high frequency amplification with hfe of over 250 and fT of 1GHz or more. (7) Transistor third overtone oscillation circuit The resonance circuit comprised of L2 and C3 is required on the emitter side for preventing fundamental mode crystal oscillation. Set the resonance frequency to a value higher than the intermediate between fundamental wave frequency and third overtone frequency. Use L1, referred to as an elongation coil, to connect the load capacitance of the oscillation circuit in series. R1 prevents self-excited oscillation by L1. Since it is difficult in general to design the oscillation circuit having adequate negative resistance in the overtone oscillation frequency band, there are no other effective means of obtaining adequate oscillation margin except for preventing the increase of load resonance resistance RL of the crystal unit. - 58 - Handling Notes R L in the equation of load resonance resistance can be made equal to R S by connecting CL in series, or making it infinite, which prevents increase in the load resonance resistance. R L R 1 1 C0 CL 2 Vcc C5 R2 C2 C6 L1 OUT R1 R3 C1 Ct C3 L2 C4 1000P R4 To prevent decrease in the negative resistance, connect the crystal unit to the base of the transistor as in the fundamental mode crystal oscillation circuit. To use the crystal circuit for both oscillation and multiplication, connect a parallel resonance circuit having multiplication frequency as resonance frequency to the collector of the transistor. When selecting circuit constants for zero adjustment range by trimmer capacitor, set the constants to values obtained by adding approx. 12 to 1510-6 to the room temperature deviation of the crystal unit, centering the value obtained by measuring the crystal unit with load capacitances in series. (When the room temperature deviation specification of the crystal unit is 1010-6) (8) Excitation power of oscillation circuit Normal operation of crystal units is not assured when excitation power is raised. The allowable excitation power varies depending on the shape of the crystal unit or the stability of targeted frequency. When highly accurate oscillation is required, however, it is recommended to use an oscillation circuit with an excitation power of 5 to 50 W or less. For other cases, refer to individual relevant crystal units on the pages of the catalog. (9) Precautions for designing printed circuit board Be sure to design printed circuit board patterns that connect a crystal unit with other oscillation elements so that the lengths of such patterns become shortest possible to prevent deterioration of characteristics due to stray capacitances and wiring inductance. For multi-layer circuit boards, it is important not to wire the ground and other signal patterns right beneath the oscillation circuit. - 59 - Handling Notes Tape & Reel Specifications Crystal Units Feed direction B C F A E J G D N O H L W U P R Q S <Reel Dimensions> T A P E R E E L CX2520SB (CX-2520SB) CX3225SB (CX-101F) CX4025SB (CX-4025S) CX5032SB (CX-96F) CX5032GB (CX-53F) CX8045GB (CX-8045G) CX8045JA (CX-17F) CXZ49FFA (CX-49F) CX855GA (CX-5FW) CXB855GB (CX-5FD) CXZ9LPA (CX-49L) A 2.00.05 2.00.05 2.00.1 2.00.1 2.00.1 2.00.1 2.00.1 2.00.1 2.00.1 B 4.00.1 4.00.1 4.00.1 4.00.1 4.00.1 4.00.1 4.00.1 4.00.1 4.00.1 C 1.550.05 1.550.05 1.550.05 1.50.1 1.550.1 1.50.1 1.550.05 1.550.05 1.50.1 D 4.00.05 4.00.05 4.00.1 8.00.1 8.00.1 8.00.1 8.00.1 12.00.1 16.00.1 E 3.50.05 3.50.05 5.50.1 5.50.1 5.50.1 7.50.1 11.50.1 11.50.1 11.50.1 F 1.750.1 1.750.1 1.750.1 1.750.1 1.750.1 1.750.1 1.750.1 1.750.1 1.750.1 G 8.00.2 8.00.2 12.00.3 12.00.3 12.00.2 16.00.3 24.00.3 24.00.3 24.00.3 H 1.050.1 1.050.1 1.050.1 1.50.1 1.550.1 1.550.05 2.050.05 2.050.05 2.20.1 J 3.50.1 3.50.1 4.20.1 5.50.1 5.40.1 8.40.1 11.50.1 12.20.1 L 2.80.1 2.80.1 2.70.1 3.70.1 3.60.1 4.90.1 5.40.1 5.850.1 N 0.850.1 0.850.1 0.950.05 1.40.1 1.70.1 2.10.1 5.50.1 2.80.1 6.50.1 O 0.250.05 0.250.05 0.20.05 0.30.05 0.250.05 0.30.05 0.30.05 0.30.05 0.50.05 P 180+0/-3 180+0/-3 180+0/-3 3302/1782 3302/2542 3302/2542 3302 3302 3302 Q 60+1/-0 60+1/-0 60+1/-0 802/1001 1001 801 1001 1001 1001 R 130.2 130.2 130.2 130.2 130.2 130.2 130.5 130.5 130.5 S 210.8 210.8 210.8 210.8 210.8 210.8 210.5 210.5 U 2.00.5 2.00.5 2.00.5 2.00.5 2.00.5 2.00.5 2.00.2 2.00.5 W 91 91 131 13.5+1/-0.5 13.4+2/-0 16.0+2/-0 25.50.5 24.4+2/-0 25.5+1/-0.5 3000/1000 3000/1000 3000/1000 5000/1000 3000/1000 3000/1000 1000 1000 600 Qty - 60 -