Field Programmable | Learn More

The SiT3907 is a highly flexible, high performance DCXO with LVCMOS/LVTTL compatible output. This programmable device supports any frequency, 1-220 MHz, along with any combination of voltage (1.8 V; 2.5 V to 3.3 V), pull range (±25 ppm to ±200 ppm) and package (3225, 5032, 7050). It enables frequency tuning via a unique one-wire interface, eliminating frequency drift that is caused by board noise and simplifying PLL and clock synchronization design. It comes in 3 industry-standard package sizes, 4-pin 3.2x2.5 mm, and 6-pin 5.0x3.2 or 7.0x5.0 mm.

 

FlexEdgeTM Rise/Fall Time
Yes
Frequency
1 to 220 MHz
Frequency Stability (ppm)
±10, ±25, ±50
Operating Temperature Range (°C)
-20 to +70, -40 to +85
Oscillator Type
DCXO-SE
Output type
LVCMOS
Package Type (mm²)
3.2x2.5, 5.0x3.2, 7.0x5.0
Phase Jitter (RMS)
0.6 ps
Pull Range (ppm)
±25, ±50, ±100, ±200, ±400, ±800, ±1600
Features
Digitally controlled, Field Programmable
Voltage Supply (V)
1.8, 2.5, 2.8, 3.3
Availability
Production
Applications
  • Timing Servers
  • Networked video systems and digitizers
  • Set-top boxes (STB)
  • Jitter cleaner
  • Networked audio systems
  • Instrumentation
  • Low-bandwidth analog phase locked loop (PLL)
  • FPGA data recovery

3907

Features & Benefits

  • Digitally controlled 1 ppb frequency pull resolution
  • Frequency from 1 MHz to 220 MHz
  • Supply voltage of 1.8 V; 2.5 V to 3.3 V
  • Frequency stability from ±10 ppm to ±50 ppm
  • Pull range from ±25 ppm to ±1600 ppm:
  • Eliminating a need for external DAC
  • Customized specification for optimal system performance
  • Easy availability of any device specifications within the operating range

One-wire digital frequency tuning

  • Simpler loop control in software controlled system PLL
  • More consistent PLL bandwidth over operating range
  • Faster calibration and lock time
  • Reduction of modulation harmonics;

Three industry-standard packages

  • Minor modification to existing design using VCXO to adopt the DCXO;

4 to 6 weeks lead time

  • Reduce inventory overhead
  • Mitigate shortage risks

 

IBIS Models

LVCMOS IBIS 2.5V SiT3907 (LVCMOS, 2.5 V)
LVCMOS IBIS 2.8V SiT3907 (LVCMOS, 2.8 V)
LVCMOS IBIS 3.3V SiT3907 (LVCMOS, 3.3 V)

Quality Documents

Additional Resources