SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice The Smart Timing Choice Features Applications  31 standard frequencies from 25 MHz to 212.5 MHz  10GB Ethernet, SONET, SATA, SAS, Fibre Channel, PCI-Express  LVPECL and LVDS output signaling types  0.6 ps RMS phase jitter (random) over 12 kHz to 20 MHz bandwidth  Telecom, networking, instrumentation, storage, servers  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 any other frequencies between 1 to 625 MHz, refer to SiT9121 and SiT9122 datasheet Electrical Characteristics Parameter and Conditions Symbol Min. Typ. Max. Unit Condition LVPECL and LVDS, Common Electrical Characteristics Supply Voltage Vdd 2.97 3.3 3.63 V 2.25 2.5 2.75 V 2.25 – 3.63 V Termination schemes in Figures 1 and 2 - XX ordering code Output Frequency Range f 25 – 212.5 MHz See last page for list of standard frequencies Frequency Stability F_stab -10 – +10 ppm -20 – +20 ppm Inclusive of initial tolerance, operating temperature, rated power -25 – +25 ppm supply voltage, and load variations -50 – +50 ppm First Year Aging F_aging1 -2 – +2 ppm 25°C 10-year Aging F_aging10 -5 – +5 ppm 25°C T_use -40 – +85 °C Industrial Operating Temperature Range -20 – +70 °C Extended Commercial Input Voltage High VIH 70% – – Vdd Pin 1, OE or ST Input Voltage Low VIL – – 30% Vdd Pin 1, OE or ST Input Pull-up Impedance Z_in – 100 250 kΩ Pin 1, OE logic high or logic low, or ST logic high 2 – – MΩ Pin 1, ST logic low Start-up Time T_start – 6 10 ms Measured from the time Vdd reaches its rated minimum value. In Standby mode, measured from the time ST pin crosses Resume Time T_resume – 6 10 ms 50% threshold. Duty Cycle DC 45 – 55 % 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 Maximum Output Current I_driver – – 30 mA Maximum average current drawn from OUT+ or OUT- Output High Voltage VOH Vdd-1.1 – Vdd-0.7 V See Figure 1(a) Output Low Voltage VOL Vdd-1.9 – Vdd-1.5 V See Figure 1(a) Output Differential Voltage Swing V_Swing 1.2 1.6 2.0 V See Figure 1(b) Rise/Fall Time Tr, Tf – 300 500 ps 20% to 80%, see Figure 1(a) OE Enable/Disable Time T_oe – – 115 ns f = 212.5 MHz - For other frequencies, T_oe = 100ns + 3 period RMS Period Jitter T_jitt – 1.2 1.7 ps f = 100 MHz, VDD = 3.3V or 2.5V – 1.2 1.7 ps f = 156.25 MHz, VDD = 3.3V or 2.5V – 1.2 1.7 ps f = 212.5 MHz, VDD = 3.3V or 2.5V RMS Phase Jitter (random) T_phj – 0.6 0.85 ps f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdds 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 990 Almanor Avenue, Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com Rev. 1.06 Revised October 3, 2014

SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice TheSmartTimingChoice 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 OE = Low Standby Current I_std – – 100 A ST = Low, for all Vdds VOD Magnitude Change VOD – – 50 mV See Figure 2 Offset Voltage 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 – 495 600 ps 20% to 80%, see Figure 2 OE Enable/Disable Time T_oe – – 115 ns f = 212.5 MHz - For other frequencies, T_oe = 100ns + 3 period RMS Period Jitter T_jitt – 1.2 1.7 ps f = 100 MHz, VDD = 3.3V or 2.5V – 1.2 1.7 ps f = 156.25 MHz, VDD = 3.3V or 2.5V – 1.2 1.7 ps f = 212.5 MHz, VDD = 3.3V or 2.5V RMS Phase Jitter (random) T_phj – 0.6 0.85 ps f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdds Pin Description Pin Map Functionality H or Open: specified frequency output OE Input L: output is high impedance Top View 1 H or Open: specified frequency output ST Input L: Device goes to sleep mode. Supply current reduces to OE/ST 1 6 VDD I_std. 2 NC NA No Connect; Leave it floating or connect to GND for better NC 2 5 OUT- heat dissipation 3 GND Power VDD Power Supply Ground GND 3 4 OUT+ 4 OUT+ Output Oscillator output 5 OUT- Output Complementary oscillator output 6 VDD Power Power supply voltage Absolute Maximum Attempted operation outside the absolute maximum ratings of the part may cause permanent damage to the part. Actual perfor- mance of the IC is only guaranteed within the operational specifications, not at absolute maximum ratings. Parameter Min. Max. Unit Storage Temperature -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 @ 260°C Rev. 1.06 Page 2 of 8 www.sitime.com

SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice TheSmartTimingChoice Waveform Diagrams OUT- 80% 80% 20% 20% VOH OUT+ VOL Tr Tf GND Figure 1(a). LVPECL Voltage Levels per Differential Pin (OUT+/OUT-) V_Swing 0 V t Figure 1(b). LVPECL Voltage Levels Across Differential Pair OUT- 80% 80% VOD 20% 20% OUT+ VOS Tr Tf GND Figure 2. LVDS Voltage Levels per Differential Pin (OUT+/OUT-) Rev. 1.06 Page 3 of 8 www.sitime.com

SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice TheSmartTimingChoice Termination Diagrams LVPECL: VDD OUT+ Z0 = 50  D+ LVPECL Driver Receiver Device OUT- Z0 = 50  D- 50  50  VTT = VDD – 2.0 V Figure 3. LVPECL Typical Termination VDD VDD= 3.3V => R1 = 100 to 150  VDD= 2.5V => R1 = 75  100nF OUT+ Z0 = 50  D+ LVPECL Driver Receiver Device 100nF OUT- Z0 = 50  D- R1 R1 50  50  VTT Figure 4. LVPECL AC Coupled Termination VDD = 3.3V => R1 = R3 = 133  and R2 = R4 = 82  VDD VDD = 2.5V => R1 = R3 = 250  and R2 = R4 = 62.5  R1 R3 VDD OUT+ Z0 = 50  D+ LVPECL Driver Receiver Device OUT- Z0 = 50  D- R2 R4 Figure 5. LVPECL with Thevenin Typical Termination Rev. 1.06 Page 4 of 8 www.sitime.com

SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice TheSmartTimingChoice LVDS: VDD OUT+ Z0 = 50  D+ LVDS Driver 100  Receiver Device OUT- Z0 = 50  D- Figure 6. LVDS Single Termination (Load Terminated) Rev. 1.06 Page 5 of 8 www.sitime.com

SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice TheSmartTimingChoice Dimensions and Patterns Package Size – Dimensions (Unit: mm)[1] Recommended Land Pattern (Unit: mm)[2] 3.2 x 2.5x 0.75 mm 3.2±0.05 2.20 2.25 #6 #5 #4 #4 #5 #6 5 0 YXXXX 2.5±0. 0.9 1.6 7 0. 0 #1 #2 #3 #3 #2 #1 1.0 0.6 0.75±0.05 0.65 1.05 5.0 x 3.2 x 0.75 mm #6 #5 #4 #4 #5 #6 1.20 YXXXX #1 #2 #3 #3 #2 #1 0.75±0.05 7.0 x 5.0x 0.90 mm 7.0±0.10 5.08 5.08 #6 #5 #4 #4 #5 #6 0 YXXXX 5.0±0.1 2.60 1.10 0 8 3. #1 #2 #3 #3 #2 #1 1.40 60 90 ±0.10 1.60 1. 0. 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. 1.06 Page 6 of 8 www.sitime.com

SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice TheSmartTimingChoice Ordering Information SiT9120AC -1C2-33E125.000000T Packaging: Part Family “T”, “Y”, “X”, “D”, “E”, or “G” “SiT9120” Refer to table below for packing method Leave Blank for Bulk Revision Letter “A” is the revision of Silicon Frequency See supported frequency list below Temperature Range “I” Industrial, -40 to 85°C Feature Pin “C” Extended Commercial, -20 to 70°C “E” for Output Enable “S” for Standby Signalling Type Voltage Supply “1” = LVPECL “25” for 2.5V ±10% “2” = LVDS “33” for 3.3V ±10% “XX” for 2.25V to 3.63V Package Size Frequency Stability “B” 3.2 x 2.5 mm x mm “F” for ±10 ppm “C” 5.0 x 3.2 mm x mm “1” for ±20 ppm “D” 7.0 x 5.0 mm x mm “2” for ±25 ppm “3” for ±50 ppm Supported Frequencies 25.000000 MHz 50.000000 MHz 74.175824 MHz 74.250000 MHz 75.000000 MHz 98.304000 MHz 100.000000 MHz 106.250000 MHz 125.000000 MHz 133.000000 MHz 133.300000 MHz 133.330000 MHz 133.333000 MHz 133.333300 MHz 133.333330 MHz 133.333333 MHz 148.351648 MHz 148.500000 MHz 150.000000 MHz 155.520000 MHz 156.250000 MHz 161.132800 MHz 166.000000 MHz 166.600000 MHz 166.660000 MHz 166.666000 MHz 166.666600 MHz 166.666660 MHz 166.666666 MHz 200.000000 MHz 212.500000 MHz Ordering Codes for Supported Tape & Reel Packing Method 8 mm T&R 8 mm T&R 8 mm T&R 12 mm T&R 12 mm T&R 12 mm T&R 16 mm T&R 16 mm T&R 16 mm T&R Device Size (3ku) (1ku) (250u) (3ku) (1ku) (250u) (3ku) (1ku) (250u) 7.0 x 5.0 mm – – – – – – T Y X 5.0 x 3.2 mm – – – T Y X – – – 3.2 x 2.5 mm D E G T Y X – – – Rev. 1.06 Page 7 of 8 www.sitime.com

SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice The Smart Timing Choice Revision History Version Release Date Change Summary 1.01 2/20/13 Original 1.02 11/23/13 Added input specifications, LVPECL/LVDS waveforms, packaging T&R options 1.03 2/6/14 Added 8mm T&R option 1.04 3/3/14 Added ±10 ppm 1.05 7/23/14 Include Thermal Consideration Table 1.06 10/3/14 Modified Thermal Consideration values © SiTime Corporation 2014. The information contained herein is subject to change at any time without notice. SiTime assumes no responsibility or liability for any loss, damage or defect of a Product which is caused in whole or in part by (i) use of any circuitry other than circuitry embodied in a SiTime product, (ii) misuse or abuse including static discharge, neglect or accident, (iii) unauthorized modification or repairs which have been soldered or altered during assembly and are not capable of being tested by SiTime under its normal test conditions, or (iv) improper installation, storage, handling, warehousing or transportation, or (v) being subjected to unusual physical, thermal, or electrical stress. Disclaimer: SiTime makes no warranty of any kind, express or implied, with regard to this material, and specifically disclaims any and all express or implied warranties, either in fact or by operation of law, statutory or otherwise, including the implied warranties of merchantability and fitness for use or a particular purpose, and any implied warranty arising from course of dealing or usage of trade, as well as any common-law duties relating to accuracy or lack of negligence, with respect to this material, any SiTime product and any product documentation. Products sold by SiTime are not suitable or intended to be used in a life support application or component, to operate nuclear facilities, or in other mission critical applications where human life may be involved or at stake. All sales are made conditioned upon compliance with the critical uses policy set forth below. CRITICAL USE EXCLUSION POLICY BUYER AGREES NOT TO USE SITIME'S PRODUCTS FOR ANY APPLICATION OR IN ANY COMPONENTS USED IN LIFE SUPPORT DEVICES OR TO OPERATE NUCLEAR FACILITIES OR FOR USE IN OTHER MISSION-CRITICAL APPLICATIONS OR COMPONENTS WHERE HUMAN LIFE OR PROPERTY MAY BE AT STAKE. SiTime owns all rights, title and interest to the intellectual property related to SiTime's products, including any software, firmware, copyright, patent, or trademark. The sale of SiTime products does not convey or imply any license under patent or other rights. SiTime retains the copyright and trademark rights in all documents, catalogs and plans supplied pursuant to or ancillary to the sale of products or services by SiTime. Unless otherwise agreed to in writing by SiTime, any reproduction, modification, translation, compilation, or representation of this material shall be strictly prohibited. Rev. 1.06 Page 8 of 8 www.sitime.com

The Smart Timing Choice The Smart Timing Choice Supplemental Information The Supplemental Information section is not part of the datasheet and is for informational purposes only. SiTime Corporation 990 Almanor Avenue, Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com

The Smart Timing Choice The Smart Timing Choice Silicon MEMS Outperforms Quartz SiTime Corporation 990 Almanor Avenue, Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com Silicon MEMS Outperforms Quartz Rev. 1.1 Revised October 5, 2013

Silicon MEMS Outperforms Quartz The Smart Timing Choice The Smart Timing Choice Best Reliability Best Electro Magnetic Susceptibility (EMS) Silicon is inherently more reliable than quartz. Unlike quartz SiTime’s oscillators in plastic packages are up to 54 times suppliers, SiTime has in-house MEMS and analog CMOS more immune to external electromagnetic fields than quartz expertise, which allows SiTime to develop the most reliable oscillators as shown in Figure 3. products. Figure 1 shows a comparison with quartz Why is SiTime Best in Class: technology. • Internal differential architecture for best common mode Why is SiTime Best in Class: noise rejection • SiTime’s MEMS resonators are vacuum sealed using an • Electrostatically driven MEMS resonator is more immune advanced EpiSeal™ process, which eliminates foreign par- to EMS ticles and improves long term aging and reliability • World-class MEMS and CMOS design expertise SiTime vs Quartz Mean Time Between Failure (Million Hours) Electro Magnetic Susceptibility (EMS) - 30 SiTime 500 B) - 40 - 39 - 40 - 42 - 43 - 45 d IDT (Fox) 38 SiTime (s - 50 r 20X Better u Epson 28 pS - 60 54SXi TBimeteter e g a - 70 - 73 TXC 16 re v A - 80 Pericom 14 - 90 0 200 400 600 Kyocera Epson TXC CW SiLabs SiTime Figure 1. Reliability Comparison[1] Figure 3. Electro Magnetic Susceptibility (EMS)[3] Best Aging Best Power Supply Noise Rejection Unlike quartz, MEMS oscillators have excellent long term SiTime’s MEMS oscillators are more resilient against noise on aging performance which is why every new SiTime product the power supply. A comparison is shown in Figure 4. specifies 10-year aging. A comparison is shown in Figure 2. Why is SiTime Best in Class: Why is SiTime Best in Class: • On-chip regulators and internal differential architecture for • SiTime’s MEMS resonators are vacuum sealed using an common mode noise rejection advanced EpiSeal process, which eliminates foreign parti- • Best analog CMOS design expertise cles and improves long term aging and reliability • Inherently better immunity of electrostatically driven MEMS resonator SiTime MEMS vs. Quartz Aging p-p Power Supply Noise Rejection V SiTIme NDK Epson Kyocera SiTime MEMS Oscillator Quartz Oscillator m 5.0 10 r e p PM) 68 2XS iBTiemttee r 8.0 r ettiJ eas)vm/sp(e s34..00 Aging (±P 24 1.5 3.0 3.5 hP detargetn IeioN detecnjI 12..00 3XS iBTSiemitTteiemre  0 vtidi 0.010 100 1,000 10,000 1-Year 10-Year dA Power Supply Noise Frequency (kHz) Figure 2. Aging Comparison[2] Figure 4. Power Supply Noise Rejection[4] Silicon MEMS Outperforms Quartz Rev. 1.1 www.sitime.com

Silicon MEMS Outperforms Quartz The Smart Timing Choice The Smart Timing Choice Best Vibration Robustness Best Shock Robustness High-vibration environments are all around us. All electronics, SiTime’s oscillators can withstand at least 50,000 g shock. from handheld devices to enterprise servers and storage They all maintain their electrical performance in operation systems are subject to vibration. Figure 5 shows a comparison during shock events. A comparison with quartz devices is of vibration robustness. shown in Figure 6. Why is SiTime Best in Class: Why is SiTime Best in Class: • The moving mass of SiTime’s MEMS resonators is up to • The moving mass of SiTime’s MEMS resonators is up to 3000 times smaller than quartz 3000 times smaller than quartz • Center-anchored MEMS resonator is the most robust • Center-anchored MEMS resonator is the most robust design design Vibration Sensitivity vs. Frequency Differential XO Shock Robustness -500 g 16 SiTime TXC Epson Connor Winfield Kyocera SiLabs M) 14.3 g) 100.00 PP 14 12.6 vity (ppb/ 10.00 eviation ( 1102 siti y D 8 ation Sen 1.00 USpBi eTtotitm e3re0 x Frequenc 46 3.9 2.9 2.5 USpBi eTtotitm e2re5 x br k 2 Vi 0.10 Pea 0 0.6 10 100 1000 Vibration Frequency (Hz) Kyocera Epson TXC CW SiLabs SiTime Figure 5. Vibration Robustness[5] Figure 6. Shock Robustness[6] Notes: 1. Data Source: Reliability documents of named companies. 2. Data source: SiTime and quartz oscillator devices datasheets. 3. Test conditions for Electro Magnetic Susceptibility (EMS): • According to IEC EN61000-4.3 (Electromagnetic compatibility standard) • Field strength: 3V/m • Radiated signal modulation: AM 1 kHz at 80% depth • Carrier frequency scan: 80 MHz – 1 GHz in 1% steps • Antenna polarization: Vertical • DUT position: Center aligned to antenna Devices used in this test: SiTime, SiT9120AC-1D2-33E156.250000 - MEMS based - 156.25 MHz Epson, EG-2102CA 156.2500M-PHPAL3 - SAW based - 156.25 MHz TXC, BB-156.250MBE-T - 3rd Overtone quartz based - 156.25 MHz Kyocera, KC7050T156.250P30E00 - SAW based - 156.25 MHz Connor Winfield (CW), P123-156.25M - 3rd overtone quartz based - 156.25 MHz SiLabs, Si590AB-BDG - 3rd overtone quartz based - 156.25 MHz 4. 50 mV pk-pk Sinusoidal voltage. Devices used in this test: SiTime, SiT8208AI-33-33E-25.000000, MEMS based - 25 MHz NDK, NZ2523SB-25.6M - quartz based - 25.6 MHz Kyocera, KC2016B25M0C1GE00 - quartz based - 25 MHz Epson, SG-310SCF-25M0-MB3 - quartz based - 25 MHz 5. Devices used in this test: same as EMS test stated in Note 3. 6. Test conditions for shock test: • MIL-STD-883F Method 2002 • Condition A: half sine wave shock pulse, 500-g, 1ms • Continuous frequency measurement in 100 μs gate time for 10 seconds Devices used in this test: same as EMS test stated in Note 3 7.Additional data, including setup and detailed results, is available upon request to qualified customers. Please contact productsupport@sitime.com. Silicon MEMS Outperforms Quartz Rev. 1.1 www.sitime.com

Document Feedback Form The Smart Timing Choice The Smart Timing Choice SiTime values your input in improving our documentation. Click here for our online feedback form or fill out and email the form below to productsupport@sitime.com. 1. Does the Electrical Characteristics table provide complete information? Yes No If No, what parameters are missing? _________________________________________________________________________________________________ 2. Is the organization of this document easy to follow? Yes No If “No,” please suggest improvements that we can make: _________________________________________________________________________________________________ 3. Is there any application specific information that you would like to see in this document? (Check all that apply) EMI Termination recommendations Shock and vibration performance Other If “Other,” please specify: _________________________________________________________________________________________________ 4. Are there any errors in this document? Yes No If “Yes”, please specify (what and where): _________________________________________________________________________________________________ 5. Do you have additional recommendations for this document? _________________________________________________________________________________________________ Name ________________________________________________________________________________ Title ________________________________________________________________________________ Company_________________________________________________________________________________________ Address _________________________________________________________________________________________ City / State or Province / Postal Code / Country ___________________________________________________________ Telephone __________________________________ Application________________________________________________________________________________________ Would you like a reply? Yes No Thank you for your feedback. Please click the email icon in your Adobe Reader tool bar and send to productsupport@sitime.com. Or you may use our online feedback form. Feedback Form Rev. 1.0 www.sitime.com