SiT5157 60 MHz to 220 MHz, 0.5 to 2.5 ppm, Elite Platform Super-TCXO Description Features Output 60189 MHz, and 208220 MHz, in 1 Hz steps The SiT5157 is a 0.5 ppm to 2.5 ppm MEMS Super-TCXO Factory programmable options for short lead time that is engineered for best dynamic performance. It is ideal Best dynamic stability under airflow, thermal shock for high reliability telecom, wireless and networking, 0.5 ppm stability across temperature industrial, precision GNSS and audio/video applications. 15 ppb/C typical frequency slope (F/T) Leveraging SiTimes unique DualMEMS temperature -40C to +105C operating temperature sensing and TurboCompensation technologies, the No activity dips or micro jumps SiT5157 delivers the best dynamic performance for timing Resistant to shock, vibration and board bending stability in the presence of environmental stressors such as On-chip regulators eliminate the need for external LDOs air flow, temperature perturbation, vibration, shock, and 2 Digital frequency pulling (DCTCXO) via I C electromagnetic interference. This device also integrates Digital control of output frequency and pull range multiple on-chip regulators to filter power supply noise, Up to 3200 ppm pull range eliminating the need for a dedicated external LDO. Frequency pull resolution down to 5 ppt 2.5 V, 2.8 V, 3.0 V and 3.3 V supply voltage The SiT5157 offers three device configurations that can be LVCMOS output ordered using Ordering Codes for: RoHS and REACH compliant, Pb-free, Halogen-free, Antimony-free Applications Precision GNSS systems Microwave backhaul Network routers and switches The SiT5157 can be factory programmed for any Professional audio and video equipment combination of frequency, stability, voltage, and pull range. Storage and servers Programmability enables designers to optimize clock Test and measurement configurations while eliminating long lead times and customization costs associated with quartz devices where each frequency is custom built. Refer to Manufacturing Guideline for proper reflow profile and PCB cleaning recommendations for best performance. 5.0 mm x 3.2 mm Package Pinout Block Diagram SDA / NC 1 10 9 OE / VC / NC VDD 2 8 SCL / NC NC 3 7 NC NC 4 5 6 GND CLK A0 / NC Figure 1. SiT5157 Block Diagram Figure 2. Pin Assignments (Top view) (Refer to Table 11 for Pin Descriptions) Rev 1.06 November 4, 2021 www.sitime.com SiT5157 60 MHz to 220 MHz, 0.5 to 2.5 ppm, Elite Platform Super-TCXO Ordering Information The part number guide illustrated below is for reference only, in which boxes identify order codes having more than one option. To customize and build an exact part number, use the SiTime Part Number Generator. To validate the part number, use the SiTime Part Number Decoder. Package Size : 5.0 mm x 3.2 mm Pin 1 Function TCXO mode only 1 Output Waveform : LVCMOS: Output Enable Silicon Revision Letter: No Connect Part Family SiT5157AC - FK - 33 E 0 - 98.123456 T TCXO VCTCXO SiT5157AC - FK - 33 V T - 98.123456 T DCTCXO SiT5157AC - FKG33 J R - 98.123456 T Packaging Temperature Range : 12 mm Tape & Reel, 3 ku reel : Industrial, -40 to 85C: 12 mm Tape & Reel, 1 ku reel: Extended Commercial, -20 to 70C X: 12 mm Tape & Reel, 250 u reel 2 : Extended Industrial, -40 to 105C (blank): bulk Frequency Frequency Stability 60.000001 MHz to 189.000000 MHz: for 0.5 ppm 208.000000 MHz to 220.000000 MHz: for 1.0 ppm : for 2.5 ppm Pull Range DCTCXO mode only 2 I C Address Mode DCTCXO mode only : 6.25 ppm: 150 ppm : 10 ppm: 200 ppm 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, : 12.5 ppm: 400 ppm C, D, E, F: Order code representing hex 2 2: 25 ppm: 600 ppm value of I C address. When the I C address is : 50 ppm: 800 ppm factory programmed using this code, pin A0 is no : 80 ppm: 1200 ppm connect (NC). : 100 ppm: 1600 ppm 2 G: I C pin addressable mode. Address is set by : 125 ppm: 3200 ppm the logic on A0 pin. Pin 1 Function DCTCXO mode only Supply Voltage : Output Enable : No Connect, software OE control25 : 2.5 V 10%28 : 2.8 V 10%30 : 3.0 V 10%33 : 3.3 V 10% Notes: 1. - corresponds to the default rise/fall time for LVCMOS output as specified in Table 1 (Electrical Characteristics). Contact SiTime for other rise/fall time options for best EMI or driving multiple loads. For differential outputs, contact SiTime. 2. Bulk is available for sampling only. Rev 1.06 Page 2 of 33 www.sitime.com