DSC1101 DSC1121 Low-Jitter Precision CMOS Oscillator General Description Features The DSC1101 & DSC1121 series of high performance oscillators utilizes a proven silicon MEMS technology to provide excellent jitter and stability over a wide range of supply voltages and temperatures. By eliminating the need for quartz or SAW technology, MEMS oscillators significantly enhance reliability and accelerate product development, while meeting stringent clock performance criteria for a variety of communications, storage, and networking applications. DSC1101 has a standby feature allowing it to completely power-down when EN pin is pulled low; whereas for DSC1121, only the outputs are disabled when EN is low. Both oscillators are available in industry standard packages, including the small 3.2x2.5 mm2, and are "drop-in" replacements for standard 4-pin CMOS quartz crystal oscillators. Low RMS Phase Jitter: <1 ps (typ) High Stability: 10, 25, 50 ppm Wide Temperature Range o Automotive: -55 to 125 C o Ext. Industrial: -40 to 105 C o Industrial: -40 to 85 C o Ext. commercial: -20 to 70 C High Supply Noise Rejection: -50 dBc Short Lead Time: 2 Weeks Wide Freq. Range: 2.3 to 170 MHz Small Industry Standard Footprints o 2.5x2.0, 3.2x2.5, 5.0x3.2, & 7.0x5.0 mm Excellent Shock & Vibration Immunity o Qualified to MIL-STD-883 High Reliability o 20x better MTF than quartz oscillators Low Current Consumption Block Diagram Supply Range of 2.25 to 3.6 V Standby & Output Enable Function Lead Free & RoHS Compliant AEC-Q100 Automotive Qualified Applications Output Enable Modes EN Pin High NC Low DSC1101 Output Active Output Active Standby DSC1121 Output Active Output Active Output Disabled Storage Area Networks o SATA, SAS, Fibre Channel Passive Optical Networks o EPON, 10G-EPON, GPON, 10G-PON Ethernet o 1G, 10GBASE-T/KR/LR/SR, and FCoE HD/SD/SDI Video & Surveillance PCI Express DisplayPort _____________________________________________________________________________________________________________________________ _________________ DSC1101 | DSC1121 Page 1 MK-Q-B-P-D-110410-01-6 DSC1101 DSC1121 Low-Jitter Precision CMOS Oscillator Absolute Maximum Ratings Ordering Code Item Min Max Unit Supply Voltage -0.3 +4.0 V Input Voltage -0.3 VDD+0.3 V Junction Temp - +150 C Storage Temp -55 +150 C Soldering Temp - +260 C ESD HBM MM CDM - Condition Enable Modes 0: Enable/Standby 2: Enable/Disable DSC11 0 1 C I 5 40sec max. V Temp Range E: -20 to 70 I: -40 to 85 L: -40 to 105 M: -55 to 125 - Package A: 7.0x5.0mm B: 5.0x3.2mm C: 3.2x2.5mm D: 2.5x2.0mm N: 7.0x5.0mm (no center pad) 4000 400 1500 Packing T: Tape & Reel : Tube 125.0000 Stability 1: 50ppm 2: 25ppm 5: 10ppm T Freq (MHz) 125.0000 Note: 1000+ years of data retention on internal memory Specifications Parameter Condition Supply Voltage1 VDD Supply Current IDD EN pin low - output is disabled DSC1101 DSC1121 f Includes frequency variations due to initial tolerance, temp. and power supply voltage f tSU 1 year @25C T=25C Frequency Stability Ext Comm. & Ind. only All temp ranges All temp ranges Aging Startup Time2 Input Logic Levels Input logic high Input logic low VIH VIL Output Disable Time3 tDA Output Enable Time tEN Enable Pull-Up Resistor4 Min. Typ. 2.25 20 Max. Unit 3.6 V 0.095 22 mA 10 25 50 5 5 0.75xVDD - 0.25xVDD DSC1101 DSC1121 Pull-up resistor exist ppm ppm ms V 5 ns 5 20 ms ns 40 k CMOS Output Supply Current4 Output Logic Levels Output logic high Output logic low Output Transition time3 Rise Time Fall Time Frequency Output Duty Cycle IDD VOH VOL tR tF f0 I=6mA JPER Integrated Phase Noise JPH 31 0.9xVDD - 20% to 80% CL=15pF All temp range except Auto Auto temp range SYM Period Jitter 1. 2. 3. 4. output is enabled CL=15pF, F0=125 MHz 1.1 1.3 2.3 45 35 mA 0.1xVDD V 2 2 170 100 ns 55 Fout=125MHz 3 200kHz to 20MHz @ 125MHz 100kHz to 20MHz @ 125MHz 12kHz to 20MHz @ 125MHz 0.3 0.38 1.7 MHz % psRMS 2 psRMS Pin 6 VDD should be filtered with 0.1uf capacitor. tsu is time to 100PPM of output frequency after VDD is applied and outputs are enabled. Output Waveform and Test Circuit figures below define the parameters. Output is enabled if pad is floated or not connected. _____________________________________________________________________________________________________________________________ _________________ DSC1101 | DSC1121 Page 2 MK-Q-B-P-D-110410-01-6 DSC1101 DSC1121 Low-Jitter Precision CMOS Oscillator Nominal Performance Parameters (Unless specified otherwise: T=25 C, VDD=3.3 V) 0 2.5 Rejection (dBc) 25MHz-CMOS Phase Jitter (ps RMS) 50-mV -10 50MHz-CMOS 2.0 106MHz-CMOS 1.5 125MHz-CMOS 1.0 100-mV -20 -30 -40 -50 -60 -70 0.5 -80 0.1 0.0 0 200 400 600 800 1 10 100 1000 10000 Supply Noise Frequency (kHz) 1000 Power supply rejection ratio Low-end of integration BW: x kHz to 20 MHz Phase jitter (integrated phase noise) Output Waveform tR tF VOH Output VOL tEN 1/fo tDA VIH Enable VIL Typical Termination Scheme VDD 0.1uF 6 2 5 3 4 CL CMOS load capacitance _____________________________________________________________________________________________________________________________ _________________ DSC1101 | DSC1121 Page 3 MK-Q-B-P-D-110410-01-6 DSC1101 DSC1121 Low-Jitter Precision CMOS Oscillator Test Circuit IDD VDD 0.1uF 4 6 5 3 4 1 1 2 32 15pF VDA Board Layout (recommended) Solder Reflow Profile . 3C /Se cM ax 20-40 Sec 217C 200C 60-150 Sec S 6C/ ax cM Se 3C / 25C 60-180 Sec Pre heat 8 min max Reflow x. 150C Ma . ec Temperature (C) 260C Cool MSL 1 @ 260C refer to JSTD-020C Ramp-Up Rate (200C to Peak Temp) 3C/Sec Max. Preheat Time 150C to 200C 60-180 Sec Time maintained above 217C 60-150 Sec 255-260C Peak Temperature Time within 5C of actual Peak 20-40 Sec 6C/Sec Max. Ramp-Down Rate Time 25C to Peak Temperature 8 min Max. Time _____________________________________________________________________________________________________________________________ _________________ DSC1101 | DSC1121 Page 4 MK-Q-B-P-D-110410-01-6 DSC1101 DSC1121 Low-Jitter Precision CMOS Oscillator Package Dimensions 7.0 x 5.0 mm Plastic Package EXTERNAL DIMENSIONS RECOMMENDED SOLDER PAD LAYOUT Units: mm [ inches] Units: mm [ inches] Via to Ground Plane 1.40.10 [0.0550.004] 2.54 [0.100] 6 1 2 3 1.8 [0.071] 3 2 2.8 [0.110] 50.10 [0.1970.004] 0.850.05 Pin Terminal Enable N/C Ground OUT N/C VDD TIE TO GND PAD 3 1 1 No. 1 2 3 4 5 6 4 6 2.6 [0.102] 5 1.4 [0.055] 4 5.08 [0.100] 3.7 [0.146] REF 5 4 1.10.01[0.430.004] 70.10 [0.2760.004] 6 Via to Power Trace 1.4 [0.055] 5.0 x 3.2 mm Plastic Package EXTERNAL DIMENSIONS Units: mm [ inches] 4 4 5 6 1.2 [0.047] REF 5 1 2 3 Via to Power Trace 0.640.05 1.27 [0.050] 50.05 [0.1970.002] 6 RECOMMENDED SOLDER PAD LAYOUT Units: mm [ inches] Via to Ground Plane 6 4 1 3 1.2 [0.047] REF 3 2 1 0.70.1 [0.0790.002] 3.20.05 [0.1260.002] 0.850.05 2.54 [0.100] No. 1 2 3 4 5 Pin Terminal Enable N/C Ground OUT N/C 6 VDD 1.1 [ 0.043] 0.64 [0.025] _____________________________________________________________________________________________________________________________ _________________ DSC1101 | DSC1121 Page 5 MK-Q-B-P-D-110410-01-6 DSC1101 DSC1121 Low-Jitter Precision CMOS Oscillator 3.2 x 2.5 mm Plastic Package EXTERNAL DIMENSIONS Units: mm [ inches] RECOMMENDED SOLDER PAD LAYOUT Units: mm [ inches] Via to Power Trace 3.20.05 [0.1260.002] 1.05 [0.041] 0.70.1 [0.0790.002] 6 5 4 4 5 2.1[0.083] Via to Ground Plane 6 0.9 [0.035] REF 0.9 [0.035] REF 6 4 1 3 1 [ 0.039] 1 2 3 3 2.50.05 [0.0980.002] 2 1 0.1[0.004] REF 0.90.05 [0.0350.002] 0.9 [0.035] 0.50.05 [0.1980.002] No. 1 2 3 4 5 6 0.850.05 Pin Terminal Enable N/C Ground OUT N/C VDD 2.5 x 2.0 mm Plastic Package EXTERNAL DIMENSIONS Units: mm [ inches] 2.50.05 [0.0980.002] RECOMMENDED SOLDER PAD LAYOUT Units: mm [ inches] 0.70.1 [0.0790.002] 0.825 [0.032] 6 5 4 4 5 Via to Power Trace 6 1.65[0.064] Via to Ground Plane 0.6 REF 0.535 REF 0.7 REF 1 2 3 0.70.1 [0.0790.002] 3 2 1 0.7650.1 6 5 4 1 2 3 2.00.05 [0.0790.002] 0.650.05 [0.0260.002] 0.850.05 0.250.05 [0.0990.002] No. 1 2 3 4 5 Pin Terminal Enable N/C Ground OUT N/C 6 VDD 0.85 0.650.05 [0.0260.002] _____________________________________________________________________________________________________________________________ _________________ DSC1101 | DSC1121 Page 6 MK-Q-B-P-D-110410-01-6 DSC1101 DSC1121 Low-Jitter Precision CMOS Oscillator 7.0 x 5.0 mm Plastic Package (no center pad) EXTERNAL DIMENSIONS Units: mm [ inches] RECOMMENDED SOLDER PAD LAYOUT Units: mm [ inches] Via to Ground Plane 1.40.10 [0.0550.004] 2.54 [0.100] 6 1.10.01[0.430.004] 5 1 2 3 3 2 1 4 6 2.6 [0.102] 4 4 3.7 [0.146] REF 5 5.08 [0.100] 3 1 1.4 [0.055] 70.10 [0.2760.004] 6 Via to Power Trace 50.10 [0.1970.004] No. 1 2 3 4 5 6 0.850.05 Pin Terminal Enable N/C Ground OUT N/C VDD 1.4 [0.055] Disclaimer: Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. 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Phone: +1 (408) 944-0800 2180 Fortune Drive, Fax: +1 (408) 474-1000 San Jose, California 95131 Email: hbwhelp@micrel.com USA www.micrel.com _____________________________________________________________________________________________________________________________ _________________ DSC1101 | DSC1121 Page 7 MK-Q-B-P-D-110410-01-6 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Micrel: DSC1101AI2-100.0000T DSC1101BE1-012.0000T DSC1101BE2-033.0000 DSC1101BE2-033.0000T DSC1101BE2-050.0000 DSC1101BE2-050.0000T DSC1101BI1-012.5000 DSC1101BI1-012.5000T DSC1101BI1148.5000T DSC1101BI2-024.0000T DSC1101BI2-025.0000T DSC1101BI5-022.5792T DSC1101BI5-024.5760T DSC1101BL1-012.5000 DSC1101BL1-012.5000T DSC1101CE1-012.5000 DSC1101CE1-012.5000T DSC1101CI1012.5000 DSC1101CI1-012.5000T DSC1101CI5-072.0000T DSC1101CL2-024.7500T DSC1101CM5-050.0000 DSC1101CM5-050.0000T DSC1101CM5-100.0000 DSC1101DE1-012.5000 DSC1101DE1-012.5000T DSC1101DI1012.5000 DSC1101DI1-012.5000T DSC1101DI2-032.0000 DSC1101DI2-032.0000T DSC1101DI5-031.2500 DSC1101DI5-031.2500T DSC1101DI5-072.0000T DSC1101DL1-012.5000 DSC1101DL1-012.5000T DSC1101DL2008.0000T DSC1101DL2-012.0000T DSC1101DL2-024.0000T DSC1101DL2-054.0000T DSC1101DM2-100.0000 DSC1121AI2-062.5000T DSC1121AI2-156.2500T DSC1121AI2-163.8400 DSC1121AI2-163.8400T DSC1121AM1050.0000 DSC1121AM1-100.0000T DSC1121AM2-014.7456 DSC1121AM2-016.0000 DSC1121AM2-025.0000 DSC1121BI1-016.0000T DSC1121BI2-048.0000T DSC1121BI2-148.5000T DSC1121BM1-016.0000 DSC1121CE1033.0000T DSC1121CE1-033.3333 DSC1121CE1-033.3333T DSC1121CE1-100.0000T DSC1121CE5-050.0000 DSC1121CE5-050.0000T DSC1121CI2-030.0000 DSC1121CI2-030.0000T DSC1121CI2-051.8400T DSC1121CI2148.5000T DSC1121CI2-168.0000 DSC1121CI2-168.0000T DSC1121CI5-022.5000 DSC1121CI5-045.0000 DSC1121CM2-062.2080 DSC1121CM2-062.2080T DSC1121DE1-050.0000 DSC1121DE1-050.0000T DSC1121DI1020.0000 DSC1121DI1-020.0000T DSC1121DI1-025.0000 DSC1121DI1-075.0000 DSC1121DI1-075.0000T DSC1121DI2-125.0000 DSC1121DL2-008.0000 DSC1121DL2-008.0000T DSC1121DL2-033.0000T DSC1121DL2033-0000T DSC1121DL2-040.0000 DSC1121DL2-040.0000T DSC1101DL2-050.0000T DSC1101BI5-050.0000 DSC1121BI2-153.6000 DSC1121BI2-066.6666 DSC1121CI2-074.2500 DSC1101DM1-020.0000 DSC1121AE2025.0000C DSC1121AI2-025.0006 DSC1101DI1-025.0000 DSC1101AI2-048.0000T DSC1101DI1-025.0000T DSC1121BI2-050.0000T DSC1121BI2-125.0000 DSC1121CE5-025.0000T DSC1121AI2-048.0000T DSC1121CI2148.5000 DSC1121DI2-100.0000