SiT5155 0.5 ppm, Elite Platform Super-TCXO for GNSS/GPS Description Features The SiT5155 is a 0.5 ppm MEMS Super-TCXO that is 12 frequencies from 10 MHz to 40 MHz Factory programmable options for short lead time engineered for high reliability, GNSS-based precision positioning and timing applications. Best dynamic stability under airflow, thermal shock 0.5 ppm stability across temperature Leveraging SiTimes unique DualMEMS temperature 15 ppb/C typical frequency slope (F/T) sensing and TurboCompensation technologies, the -40C to +105C operating temperature SiT5155 delivers the best dynamic performance for timing No activity dips or micro jumps stability in the presence of environmental stressors such as Resistant to shock, vibration and board bending air flow, temperature perturbation, vibration, shock, and On-chip regulators eliminate the need for external LDOs electromagnetic interference. This device also integrates 2 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 SiT5155 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 or clipped sinewave output RoHS and REACH compliant Pb-free, Halogen-free, Antimony-free Applications Precision GNSS systems Microwave backhaul The SiT5155 can be factory programmed for specific Professional audio and video equipment combinations of frequency, voltage, and pull range. Network routers and switches Programmability enables designers to optimize clock Storage and servers 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 3 7 NC NC 4 5 6 CLK GND A0 / NC Figure 1. SiT5155 Block Diagram Figure 2. Pin Assignments (Top view) (Refer to Table 13 for Pin Descriptions) Rev 1.04 May 23, 2020 www.sitime.com SiT5155 0.5 ppm, Elite Platform Super-TCXO for GNSS/GPS 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 TCXO SiT5155AC - FK - 33 E 0 - 10.000000 T VCTCXO SiT5155AC - FK - 33 V T - 10.000000 T DCTCXO SiT5155AC - FKG33 J R - 10.000000 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 Output Waveform Frequency 1 : LVCMOS 12 GNSS/GPS Frequencies (MHz):: Clipped Sinewave 10.000000, 10.949297, 16.367600, 16.367667, 16.368000, 16.369000, 16.384000, 20.000000, 24.553500, Frequency Stability 25.000000, 26.000000, 40.000000: for 0.5 ppm Pull Range DCTCXO mode only 2 I C Address Mode DCTCXO mode only : 6.25 ppm: 150 ppm 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B,: 10 ppm: 200 ppm C, D, E, F: Order code representing hex: 12.5 ppm: 400 ppm 2 2 value of I C address. When the I C address is: 25 ppm: 600 ppm factory programmed using this code, pin A0 is no : 50 ppm: 800 ppm connect (NC). : 80 ppm: 1200 ppm 2: 100 ppm: 1600 ppm 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: Output Enable : No Connect, software OE control 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 1.04 Page 2 of 38 www.sitime.com