SiT5356 1 MHz 60 MHz, 0.1 to 0.25 ppm, Stratum 3, Elite Platform Precision Super-TCXO Description Features The SiT5356 is a 100 ppb precision MEMS Super-TCXO Any frequency from 1 MHz to 60 MHz in 1 Hz steps Factory programmable options for short lead time that is fully compliant to Telcordia GR-1244-CORE Stratum 3 oscillator specifications. Engineered for best dynamic Best dynamic stability under airflow, thermal shock performance, the SiT5356 is ideal for high reliability 100 ppb stability across temperature telecom, wireless and networking, industrial, precision 1 ppb/ C typical frequency slope (F/T) GNSS and audio/video applications. 1.5e-11 ADEV at 10 second averaging time -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 SiT5356 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 Digital frequency pulling (DCTCXO) via I C air flow, temperature perturbation, vibration, shock, and Digital control of output frequency and pull range electromagnetic interference. This device also integrates Up to 3200 ppm pull range multiple on-chip regulators to filter power supply noise, Frequency pull resolution down to 5 ppt eliminating the need for a dedicated external LDO. 2.5 V, 2.8 V, 3.0 V and 3.3 V supply voltage LVCMOS or clipped sinewave output The SiT5356 offers three device configurations that can be RoHS and REACH compliant ordered using Ordering Codes for: Pb-free, Halogen-free, Antimony-free Applications 4G/5G radio, Small cell IEEE1588 boundary and grandmaster clocks Carrier-grade routers and switches Synchronous Ethernet The SiT5356 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 GPS disciplined oscillators configurations while eliminating long lead times and Precision GNSS systems customization costs associated with quartz devices where Test and measurement 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 3 7 NC NC 4 5 6 CLK GND A0 / NC Figure 2. Pin Assignments (Top view) Figure 1. SiT5356 Block Diagram (Refer to Table 13 for Pin Descriptions) Rev 1.07 May 10, 2020 www.sitime.com SiT5356 1 MHz 60 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. Part Silicon Package Size Pin 1 Function TCXO mode only Family Revision : 5.0 mm x 3.2 mm: Output Enable Letter: No Connect SiT5356AC - FQ - 33 E 0 - 19.123456 T TCXO SiT5356AC - FQ - 33 V T - 19.123456 T VCTCXO DCTCXO SiT5356AC - FQG33 J R - 19.123456 T Temperature Range Packaging : Industrial, -40 to 85C: 12 mm Tape & Reel, 3 ku reel : Extended Commercial, -20 to 70C: 12 mm Tape & Reel, 1 ku reel: Extended Industrial, -40 to 105C: 12 mm Tape & Reel, 250 u reel 2 (blank): bulk Output Waveform 1 Frequency: LVCMOS 1.000000 MHz to 60.000000 MHz: Clipped Sinewave Frequency Stability Pull Range DCTCXO mode only: for 0.1 ppm : 6.25 ppm: 150 ppm : for 0.2 ppm: 10 ppm: 200 ppm : for 0.25 ppm : 12.5 ppm: 400 ppm : 25 ppm: 600 ppm : 50 ppm: 800 ppm 2 I C Address Mode DCTCXO mode only : 80 ppm: 1200 ppm : 100 ppm: 1600 ppm 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, : 125 ppm: 3200 ppm C, D, E, F: Order code representing hex 2 2 value of I C address. When the I C address is factory programmed using this code, pin A0 is no Pin 1 Function DCTCXO mode only connect (NC). : Output Enable 2 G: I C pin addressable mode. Address is set by : No Connect, software OE control 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% 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 1.07 Page 2 of 41 www.sitime.com