Si52258 Overview
The Si52258 and Si52254 source eight and four 100 MHz PCIe differential clock outputs, respectively. All clock outputs are pliant to PCIe Gen1/2/3/4/5 mon clock and separate reference clock architecture specifications. Hardware control pins are available for enabling and disabling the outputs, as well as spread spectrum enable/disable for EMI reduction.
Si52258 Key Features
- 8/4-outputs with internal termination
- PCIe Gen 1/2/3/4/5 pliant
- Automotive grade 2: -40 to +105 °C
- Internal 100 Ω or 85 Ω line matching
- Excellent jitter performance
- 0.05 ps RMS (Gen3/4)
- 0.025 ps RMS (Gen5)
- Triangular spread spectrum for EMI reduction, down spread 0.25% or 0.5%
- Individual hardware control pins for Output Enable, Spread Spectrum Enable
- Enable and Frequency Select