Si547 Datasheet (Silicon Laboratories)

Si547, Crystal Oscillator

1, 2 Selectable via ordering option OE = Output enable; NC = No Connect 3 GND = Ground 4 CLK+ = Clock output 5 CLK- = Complementary clock output.

Not used for CMOS.

6 VDD = Power supply 7 FS1 = Frequency Select 1 8 FS0 = Frequency Select 0 Fixed Frequency Crystal Frequency Flexible DSPLL

Ultra Series™ Crystal Oscillator Si547 Data Sheet Ultra Low Jitter Quad Any-Frequency XO (80 fs), 0.2 to 1500 MHz The Si547 Ultra Series™ oscillator utilizes Silicon Laboratories’ advanced 4th generation DSPLL® technology to provide an ultra-low jitter, low phase noise clock at four selectable frequencies.

The device is factory-programmed to provide any four selectable frequencies from 0.2 to 1500 MHz with <1 ppb resolution and maintains exceptionally low jitter for both integer and fractional

Si547 Features

* Available with any four selectable frequencies from 200 kHz to 1500 MHz

* Ultra low jitter: 80 fs Typ RMS (12 kHz

* 20 MHz)

* Excellent PSRR and supply noise immunity:

* 80 dBc Typ

* 7 ppm stability option (-40 to 85C)

* 3.3 V, 2.5 V and 1.8 V