Key Features

• 12/8/4/2-output low-power, push-pull HCSL 

compatible PCI-Express Gen 1, Gen 2, Gen 3, Gen

4, Gen 5, Gen 6, and SRIS-compliant outputs

• Low jitter: 0.085 ps rms, Gen 6

• Individual hardware control pins and I2C controls

for Output Enable, Spread Spectrum Enable and

Frequency Select

• Triangular spread spectrum for EMI reduction,

down spread 0.25% or 0.5%

• Internal 100 Ω or 85 Ω line matching

• Adjustable output slew rate

• Power down (PWRDNb) function supports 

Wake-on LAN (except Si52202)

• One non-spread, LVMCOS reference clock output

(except Si52202)

• Frequency Select to select 133 MHz or 200 MHz

(except Si52202)

• 25 MHz crystal input or clock input

• I2C support with readback capabilities

• Extended temperature: –40 to 85 °C

• 1.5–1.8 V power supply, with separate VDD

and VDD_IO

• Small QFN packages

• Pb-free, RoHS-6 compliant