SiT9121 1-220 MHz High Performance Differential Oscillator The Smart Timing Choice Features Applications Any frequency between 1 MHz and 220 MHz accurate to 6 decimal places 10GB Ethernet, SONET, SATA, SAS, Fibre Channel, PCI-Express LVPECL and LVDS output signaling types Telecom, networking, instrumentation, storage, servers 0.6ps RMS phase jitter (random) over 12 kHz to 20 MHz bandwidth Frequency stability as low as 10 ppm Industrial and extended commercial temperature ranges Industry-standard packages: 3.2x2.5, 5.0x3.2 and 7.0x5.0 mmxmm For frequencies higher than 220 MHz, refer to SiT9122 datasheet Electrical Characteristics Parameter and Conditions Symbol Min. Typ. Max. Unit Condition LVPECL and LVDS, Common Electrical Characteristics Supply Voltage Output Frequency Range Frequency Stability Vdd f F_stab 2.97 3.3 3.63 V 2.25 2.5 2.75 V 2.25 - 3.63 V 1 - 220 MHz -10 - +10 ppm -20 - +20 ppm -25 - +25 ppm Termination schemes in Figures 1 and 2 - XX ordering code Inclusive of initial tolerance, operating temperature, rated power supply voltage, and load variations -50 - +50 ppm First Year Aging F_aging1 -2 - +2 ppm 25C 10-year Aging F_aging10 -5 - +5 ppm 25C T_use -40 - +85 C -20 - +70 C - - Vdd Operating Temperature Range Industrial Extended Commercial Input Voltage High VIH 70% Input Voltage Low VIL - - 30% Vdd Pin 1, OE or ST Input Pull-up Impedance Z_in - 100 250 k Pin 1, OE logic high or logic low, or ST logic high 2 - - M Pin 1, ST logic low - 6 10 ms Measured from the time Vdd reaches its rated minimum value. - 6 10 ms - 55 % Start-up Time T_start Resume Time T_resume Duty Cycle DC 45 Pin 1, OE or ST In Standby mode, measured from the time ST pin crosses 50% threshold. Contact SiTime for tighter duty cycle LVPECL, DC and AC Characteristics Current Consumption Idd - 61 69 mA Excluding Load Termination Current, Vdd = 3.3V or 2.5V OE Disable Supply Current I_OE - - 35 mA OE = Low Output Disable Leakage Current I_leak - - 1 A OE = Low Standby Current I_std - - 100 A ST = Low, for all Vdds I_driver - - 30 mA Maximum average current drawn from OUT+ or OUT- Output High Voltage VOH Vdd-1.1 - Vdd-0.7 V Output Low Voltage VOL Vdd-1.9 - Vdd-1.5 V See Figure 1(a) V_Swing 1.2 1.6 2.0 V See Figure 1(b) Rise/Fall Time Tr, Tf - 300 700 ps 20% to 80%, see Figure 1(a) OE Enable/Disable Time RMS Period Jitter T_oe T_jitt - - - - - 1.2 1.2 1.2 115 1.7 1.7 1.7 ns ps ps ps RMS Phase Jitter (random) T_phj - 0.6 0.85 ps f = 212.5 MHz - For other frequencies, T_oe = 100ns + 3 period f = 100 MHz, VDD = 3.3V or 2.5V f = 156.25 MHz, VDD = 3.3V or 2.5V f = 212.5 MHz, VDD = 3.3V or 2.5V f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdds Maximum Output Current Output Differential Voltage Swing See Figure 1(a) LVDS, DC and AC Characteristics Current Consumption Idd - 47 55 mA Excluding Load Termination Current, Vdd = 3.3V or 2.5V OE Disable Supply Current I_OE - - 35 mA OE = Low Differential Output Voltage VOD 250 350 450 mV See Figure 2 SiTime Corporation Rev. 1.07 990 Almanor Avenue, Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com Revised January 4, 2016 SiT9121 1-220 MHz High Performance Differential Oscillator The Smart Timing Choice Electrical Characteristics (continued) Parameter and Conditions Symbol Min. Typ. Max. Unit Condition LVDS, DC and AC Characteristics (continued) Output Disable Leakage Current I_leak - - 1 A Standby Current I_std - - 100 A ST = Low, for all Vdds VOD - - 50 mV See Figure 2 VOD Magnitude Change Offset Voltage OE = Low VOS 1.125 1.2 1.375 V See Figure 2 VOS Magnitude Change VOS - - 50 mV See Figure 2 Rise/Fall Time Tr, Tf - 495 700 ps 20% to 80%, see Figure 2 OE Enable/Disable Time RMS Period Jitter T_oe T_jitt - - - - - 1.2 1.2 1.2 115 1.7 1.7 1.7 ns ps ps ps RMS Phase Jitter (random) T_phj - 0.6 0.85 ps f = 212.5 MHz - For other frequencies, T_oe = 100ns + 3 period f = 100 MHz, VDD = 3.3V or 2.5V f = 156.25 MHz, VDD = 3.3V or 2.5V f = 212.5 MHz, VDD = 3.3V or 2.5V f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdds Pin Description Pin Map Functionality OE Input H or Open: specified frequency output L: output is high impedance ST Input H or Open: specified frequency output L: Device goes to sleep mode. Supply current reduces to I_std. OE/ST 1 6 VDD NC NA No Connect; Leave it floating or connect to GND for better heat dissipation NC 2 5 OUT- GND 3 4 OUT+ 1 2 3 GND Power VDD Power Supply Ground 4 OUT+ Output Oscillator output 5 OUT- Output Complementary oscillator output 6 VDD Power Power supply voltage Top View Absolute Maximum Attempted operation outside the absolute maximum ratings may cause permanent damage to the part. Actual performance of the IC is only guaranteed within the operational specifications, not at absolute maximum ratings. Min. Max. Unit Storage Temperature Parameter -65 150 C VDD -0.5 4 V Electrostatic Discharge (HBM) - 2000 V Soldering Temperature (follow standard Pb free soldering guidelines) - 260 C Thermal Consideration JA, 4 Layer Board JC, Bottom Package (C/W) (C/W) 7050, 6-pin 142 27 5032, 6-pin 97 20 3225, 6-pin 109 20 Environmental Compliance Parameter Condition/Test Method Mechanical Shock MIL-STD-883F, Method 2002 Mechanical Vibration MIL-STD-883F, Method 2007 Temperature Cycle JESD22, Method A104 Solderability MIL-STD-883F, Method 2003 Moisture Sensitivity Level MSL1 @ 260C Rev. 1.07 Page 2 of 8 www.sitime.com SiT9121 1-220 MHz High Performance Differential Oscillator The Smart Timing Choice Waveform Diagrams OUT80% 80% 20% 20% VOH OUT+ Tr VOL Tf GND Figure 1(a). LVPECL Voltage Levels per Differential Pin (OUT+/OUT-) V _ S w in g 0 V t Figure 1(b). LVPECL Voltage Levels Across Differential Pair OUT80% 80% VOD 20% 20% OUT+ VOS Tr Tf GND Figure 2. LVDS Voltage Levels per Differential Pin (OUT+/OUT-) Rev. 1.07 Page 3 of 8 www.sitime.com SiT9121 1-220 MHz High Performance Differential Oscillator The Smart Timing Choice Termination Diagrams LVPECL: VDD Z0 = 50 OUT+ D+ Receiver Device L V P E C L D riv e r Z0 = 50 OUT- D50 50 VTT = VDD - 2.0 V Figure 3. LVPECL Typical Termination VDD= 3.3V => R1 = 100 to 150 VDD= 2.5V => R1 = 75 VDD 100 nF Z0 = 50 OUT+ D+ Receiver Device LVPECL Driver 100 nF Z0 = 50 OUTR1 R1 D50 50 VTT Figure 4. LVPECL AC Coupled Termination VDD = 3.3V => R1 = R3 = 133 and R2 = R4 = 82 VDD = 2.5V => R1 = R3 = 250 and R2 = R4 = 62.5 VDD R1 VDD OUT+ R3 Z0 = 50 D+ Receiver Device LVPECL Driver OUT- Z0 = 50 DR2 R4 Figure 5. LVPECL with Thevenin Typical Termination Rev. 1.07 Page 4 of 8 www.sitime.com SiT9121 1-220 MHz High Performance Differential Oscillator The Smart Timing Choice LVDS: VDD OUT+ Z0 = 50 D+ 100 LVDS Driver OUT- Z0 = 50 Receiver Device D- Figure 6. LVDS Single Termination (Load Terminated) Rev. 1.07 Page 5 of 8 www.sitime.com SiT9121 1-220 MHz High Performance Differential Oscillator The Smart Timing Choice Dimensions and Patterns Package Size - Dimensions (Unit: mm)[1] Recommended Land Pattern (Unit: mm)[2] 3.2 x 2.5x 0.75 mm 3.20.05 2.25 2.20 #4 #2 #3 #6 #1 #3 #2 1.00 0.7 0.9 YXXXX #5 #4 1.6 #5 2.50.05 #6 #1 0.6 0.65 1.05 0.750.05 5.0 x 3.2 x 0.75 mm #5 #4 #2 #3 #5 #4 #6 1.20 #6 YXXXX #1 #3 #2 #1 0.750.05 7.0 x 5.0x 0.90 mm 7.00.10 5.08 #6 #3 #3 #2 1.60 #2 5.08 #5 1.10 YXXXX #1 #4 3.80 #4 2.60 #5 5.00.10 #6 #1 0.90 0.10 1.40 1.60 Notes: 1. Top Marking: Y denotes manufacturing origin and XXXX denotes manufacturing lot number. The value of "Y" will depend on the assembly location of the device. 2. A capacitor of value 0.1 F between Vdd and GND is recommended. Rev. 1.07 Page 6 of 8 www.sitime.com SiT9121 1-220 MHz High Performance Differential Oscillator The Smart Timing Choice Ordering Information SiT9121AC-1C2-33E125.000000T Packaging: "T", "Y", "X", "D", "E" or "G" Refer to table below for packing method Leave Blank for Bulk Part Family "SiT9121" Revision Letter Frequency "A" is the revision of Silicon 1.000000 MHz to 220.000000 MHz Feature Pin "E" for Output Enable "S" for Standby Temperature Range "I" Industrial, -40 to 85C "C" Extended Commercial, -20 to 70C Voltage Supply "25" for 2.5V 10% "33" for 3.3V 10% "XX" for 2.25V to 3.63V Signalling Type "1" = LVPECL "2" = LVDS Package Size "B" 3.2 x 2.5 mm x mm "C" 5.0 x 3.2 mm x mm "D" 7.0 x 5.0 mm x mm Frequency Stability "F" for 10 ppm "1" for 20 ppm "2" for 25 ppm "3" for 50 ppm Ordering Codes for Supported Tape & Reel Packing Method Device Size 8 mm T&R (3ku) 8 mm T&R (1ku) 8 mm T&R (250u) 12 mm T&R (3ku) 12 mm T&R (1ku) 12 mm T&R (250u) 16 mm T&R (3ku) 16 mm T&R (1ku) 16 mm T&R (250u) 7.0 x 5.0 mm - - - - 5.0 x 3.2 mm - - - T - - T Y X Y X - - 3.2 x 2.5 mm D E G T Y - X - - - Frequencies Not Supported Range 1: From 209.000001 MHz to 210.999999 MHz Rev. 1.07 Page 7 of 8 www.sitime.com SiT9121 1-220 MHz High Performance Differential Oscillator The Smart Timing Choice Revision History s Version Release Date 1.01 2/20/13 Change Summary Original 1.02 12/3/13 Added input specifications, LVPECL/LVDS waveforms, packaging T&R options 1.03 2/6/14 Added 8mm T&R option and 10 ppm 1.04 4/8/14 Included 1.8V option for LVDS output only 1.05 7/30/14 Included Thermal Consideration table 1.06 10/20/14 Modified Thermal Consideration values. Preliminary removed from the title 1.07 1/4/16 Removed 1.8V option Disclaimer: This document is not an official SiTime datasheet. It is exported from a Master FrameMaker document for your convenience, to simplify the generation of your datasheet. The information in the official SiTime datasheet on SiTime's website will be the final reference in case of conflicting information. Rev. 1.07 Page 8 of 8 www.sitime.com