SiT5357 60 MHz 220 MHz, 0.1 to 0.25 ppm, Stratum 3, Elite Platform Precision Super-TCXO Description Features The SiT5357 is a 100 ppb precision MEMS Super-TCXO Output 60189 MHz, and 208220 MHz, in 1 Hz steps Factory programmable options for short lead time that is fully compliant to Telcordia GR-1244-CORE Stratum Best dynamic stability under airflow, thermal shock 3 oscillator specifications. Engineered for best dynamic performance, the SiT5357 is ideal for high reliability 100 ppb stability across temperature telecom, wireless and networking, industrial, precision 1 ppb/ C typical frequency slope (F/T) 1.5e-11 ADEV at 10 second averaging time GNSS and audio/video applications. -40C to +105C operating temperature Leveraging SiTimes unique DualMEMS temperature No activity dips or micro jumps sensing and TurboCompensation technologies, the Resistant to shock, vibration and board bending SiT5357 delivers the best dynamic performance for timing On-chip regulators eliminate the need for external LDOs stability in the presence of environmental stressors such as 2.5 V, 2.8 V, 3.0 V and 3.3 V supply voltage air flow, temperature perturbation, vibration, shock, and LVCMOS output 2 electromagnetic interference. This device also integrates Digital frequency pulling (DCTCXO) via I C multiple on-chip regulators to filter power supply noise, Digital control of output frequency and pull range eliminating the need for a dedicated external LDO. Up to 3200 ppm pull range Frequency pull resolution down to 5 ppt The SiT5357 offers three device configurations that can be 2.5 V, 2.8 V, 3.0 V and 3.3 V supply voltage ordered using Ordering Codes for: LVCMOS output RoHS and REACH compliant Pb-free, Halogen-free, Antimony-free Applications 4G/5G radio, Small cell IEEE1588 boundary and grandmaster clocks Synchronous Ethernet The SiT5357 can be factory programmed for any Optical transport SONET/SDH, OTN, Stratum 3 combination of frequency, stability, voltage, and pull range. DOCSIS 3.x remote PHY Programmability enables designers to optimize clock Precision GNSS systems configurations while eliminating long lead times and Test and measurement customization costs associated with quartz devices where each frequency is custom built. Refer to Manufacturing Guideline for proper reflow profile and PCB cleaning recommendations to ensure best performance. Block Diagram 5.0 mm x 3.2 mm Package Pinout SDA / NC 1 10 9 OE / VC / NC VDD 2 8 SCL / NC NC 7 NC 3 NC 4 5 6 CLK GND A0 / NC Figure 1. SiT5357 Block Diagram Figure 2. Pin Assignments (Top view) (Refer to Table 11 for Pin Descriptions) Rev 1.06 May 10, 2020 www.sitime.com SiT5357 60 MHz 220 MHz, 0.1 to 0.25 ppm, Stratum 3, Elite Platform Precision 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 SiT5357AC - FQ - 33 E 0 - 98.123456 T TCXO SiT5357AC - FQ - 33 V T - 98.123456 T VCTCXO DCTCXO SiT5357AC - FQG33 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 Stability Frequency 60.000001 MHz to 189.000000 MHz: for 0.1 ppm 208.000000 MHz to 220.000000 MHz: for 0.2 ppm : for 0.25 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, C, D, E, F: Order code representing hex: 12.5 ppm: 400 ppm 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 37 www.sitime.com