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SiT5357 Dataheets PDF



Part Number SiT5357
Manufacturers SiTime
Logo SiTime
Description Precision Super-TCXO
Datasheet SiT5357 DatasheetSiT5357 Datasheet (PDF)

SiT5357 60 MHz – 220 MHz, ±0.1 to ±0.25 ppm, Stratum 3 Elite Platform Precision Super-TCXO Description The SiT5357 is a ±100 ppb precision MEMS Super-TCXO that is fully compliant to Telcordia GR-1244-CORE Stratum 3 oscillator specifications. Engineered for best dynamic performance, the SiT5357 is ideal for high reliability telecom, wireless and networking, industrial, precision GNSS and audio/video applications. Leveraging SiTime’s unique DualMEMS® temperature sensing and TurboCompensation® tec.

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SiT5357 60 MHz – 220 MHz, ±0.1 to ±0.25 ppm, Stratum 3 Elite Platform Precision Super-TCXO Description The SiT5357 is a ±100 ppb precision MEMS Super-TCXO that is fully compliant to Telcordia GR-1244-CORE Stratum 3 oscillator specifications. Engineered for best dynamic performance, the SiT5357 is ideal for high reliability telecom, wireless and networking, industrial, precision GNSS and audio/video applications. Leveraging SiTime’s unique DualMEMS® temperature sensing and TurboCompensation® technologies, the SiT5357 delivers the best dynamic performance for timing stability in the presence of environmental stressors such as air flow, temperature perturbation, vibration, shock, and electromagnetic interference. This device also integrates multiple on-chip regulators to filter power supply noise, eliminating the need for a dedicated external LDO. The SiT5357 offers three device configurations that can be ordered using Ordering Codes for: 1) TCXO with non-pullable output frequency, 2) VCTCXO allowing voltage control of output frequency, 3) DCTCXO enabling digital control of output frequency using an I2C interface, pullable to 5 ppt (parts per trillion) resolution. The SiT5357 can be factory programmed for any combination of frequency, stability, voltage, and pull range. Programmability enables designers to optimize clock 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 to ensure best performance. Features ◼ Output 60–189 MHz, and 208–220 MHz, in 1 Hz steps ◼ Factory programmable options for short lead time ◼ Best dynamic stability under airflow, thermal shock ▪ ±100 ppb stability across temperature ▪ ±1 ppb/C typical frequency slope (ΔF/ΔT) ▪ 1.5e-11 ADEV at 10 second averaging time ◼ -40°C to +105°C operating temperature ◼ No activity dips or micro jumps ◼ Resistant to shock, vibration and board bending ◼ On-chip regulators eliminate the need for external LDOs ◼ 2.5 V, 2.8 V, 3.0 V and 3.3 V supply voltage ◼ LVCMOS output ◼ Digital frequency pulling (DCTCXO) via I2C ▪ Digital control of output frequency and pull range ▪ Up to ±3200 ppm pull range ▪ Frequency pull resolution down to 5 ppt ◼ 2.5 V, 2.8 V, 3.0 V and 3.3 V supply voltage ◼ 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 ◼ Optical transport – SONET/SDH, OTN, Stratum 3 ◼ DOCSIS 3.x remote PHY ◼ Precision GNSS systems ◼ Test and measurement Related products for automotive applications. For aerospace and defense applications SiTime recommends using only Endura™ SiT5347. Block Diagram Figure 1. SiT5357 Block Diagram Rev 1.07 5.0 mm x 3.2 mm Package Pinout SDA / NC OE / VC / NC 1 10 9 VDD SCL / NC 2 NC 3 8 NC 7 NC GND 4 5 6 CLK A0 / NC 1 January 2023 Figure 2. Pin Assignments (Top view) (Refer to Table 11 for Pin Descriptions) 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 "F": 5.0 mm x 3.2 mm Output Waveform "-" : LVCMOS[1] Silicon Revision Letter Part Family Pin 1 Function – TCXO mode only "E": Output Enable "N": No Connect TCXO SiT5357AC - FQ - 33E 0 - 98.123456 T VCTCXO SiT5357AC - FQ - 33 VT - 98.123456 T DCTCXO SiT5357AC - FQG33 J R - 98.123456 T Temperature Range "I": Industrial, -40 to 85°C "C": Extended Commercial, -20 to 70°C "E": Extended Industrial, -40 to 105°C Packaging "T": 12 mm Tape & Reel, 3 ku reel "Y": 12 mm Tape & Reel, 1 ku reel “X”: 12 mm Tape & Reel, 250 u reel (blank): bulk[2] Frequency Stability "Q": for ±0.1 ppm "P": for ±0.2 ppm "N": for ±0.25 ppm I2C Address Mode – DCTCXO mode only “0”, “1”, “2”, “3”, “4”, “5”, “6”, “7”, “8”, “9”, “A”, “B”, “C”, “D”, “E”, “F”: Order code representing hex value of I2C address. When the I2C address is factory programmed using this code, pin A0 is no connect (NC). “G”: I2C pin addressable mode. Address is set by the logic on A0 pin. Supply Voltage "25": 2.5 V ±10% "28": 2.8 V ±10% "30": 3.0 V ±10% "33": 3.3 V ±10% Frequency 60.000001 MHz to 189.000000 MHz 208.000000 MHz to 220.000000 MHz Pull Range – DCTCXO mode only "T": ±6.25 ppm "R": ±10 ppm "Q": ±12.5 ppm "M": ±25 ppm "B": ±50 ppm "C": ±80 ppm "E": ±100 ppm "F": ±125 ppm "G": ±150 ppm "H": ±200 ppm "X": ±400 ppm "L": ±600 ppm "Y": ±800 ppm "S": ±1200 ppm.


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