Si548 Datasheet (Skyworks) - Crystal Oscillator

Si548, Crystal Oscillator

SDA = I2C Serial Data SCL = I2C Serial Clock GND = Ground CLK+ = Clock output CLK- = Complementary clock output.

Not used for CMOS.

VDD = Power supply Fixed Frequency Crystal Frequency Flexible DSPLL OSC NVM Control Digital Phase Detector Phase Error Cancellation Digital Loop Filter Phase Er

Ultra Series™ Crystal Oscillator Si548 Data Sheet Ultra Low Jitter I2C Programmable XO (95 fs), 0.2 to 1500 MHz The Si548 Ultra Series™ oscillator utilizes Skyworks Solutions’ advanced 4th generation DSPLL® technology to provide an ultra-low jitter, low phase noise clock at any output frequency.

The device is user-programmed via simple I2C commands to provide any frequency from 0.2 to 1500 MHz with <1 ppb resolution and maintains exceptionally low jitter for both integer and fractional frequen

Si548 Features

* I2C programmable to any frequency from 0.2 to 1500 MHz with < 1 ppb resolution

* Ultra low jitter: 95 fs Typ RMS (12 kHz

* 20 MHz)

* I2C interface supports 100 kbps, 400 kbps, and 1 Mbps (Fast Mode Plus)

* Low additive jitter when I2C is active (15 fs Typ)