Skyworks Solutions Inc. Si570 XO/Si571 VCXO Oscillators
Skyworks Solutions Inc. Si570 XO/Si571 VCXO Programmable Oscillators utilize the Skyworks advanced DSPLL® circuitry to provide a low-jitter clock that is programmable to any output frequency from 10MHz to 945MHz and select frequencies to 1400MHz with <1 ppb resolution. The Si570/Si571 is programmed via an I2C serial interface. The Si57x is unique in that it uses one fixed-frequency crystal and a DSPLL clock synthesis IC to provide any-frequency operation. This IC-based approach enables the crystal resonator to provide exceptional frequency stability and reliability. Additionally, DSPLL clock synthesis provides superior supply noise rejection, simplifying the task of generating low-jitter clocks in noisy environments typically found in communication systems.
Features
- Any programmable output frequencies from 10MHz to 945MHz and select frequencies to 1.4GHz
- I2C serial interface
- 3rd generation DSPLL with superior jitter performance
- 3x better frequency stability than SAW-based oscillators
- Internal fixed crystal frequency ensures high reliability and low aging
- Available LVPECL, CMOS, LVDS, and CML outputs
- Industry-standard 5mm x 7mm package
- Pb-free/RoHS-compliant
- 1.8V, 2.5V, or 3.3V supply
Applications
- SONET/SDH
- xDSL
- 10GbE LAN/WAN
- ATE
- High-performance instrumentation
- Low-jitter clock generation
- Optical modules
- Clock and data recovery
SI570 Block Diagram
Si571 Block Diagram
