Si549 Overview
Ultra Series™ Crystal Oscillator Si549 Data Sheet Ultra Low Jitter I2C Programmable XO (95 fs), 0.2 to 1500 MHz The Si549 Ultra Series™ oscillator utilizes Silicon Laboratories’ 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 mands to provide any frequency from 0.2 to 1500 MHz with <1 ppb resolution...
Si549 Key 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)
- Configure up to 4 pin-selectable startup frequencies
- I2C interface supports 100 kbps, 400 kbps, and 1
- Excellent PSRR and supply noise immunity: -80
- 3.3 V, 2.5 V and 1.8 V VDD supply operation from
- LVPECL, LVDS, CML, HCSL, CMOS, and Dual
- 3.2x5, 5x7 mm package footprints
- Samples available with 1-2 week lead times
