SILICON LABS SI52142-A01AGM

The Si52142 is a spread-spectrum enabled PCIe clock generator that can source two PCIe clocks and a 25 MHz reference clock. The device has three hardware output enable pins for enabling the respective outputs, and two hardware pins to control spread spectrum and frequency on PCIe clock outputs. In addition to the hardware control pins, I²C programmability is also available to dynamically control skew, edge rate, and amplitude on the true, compliment, or both differential signals on the PCIe clock outputs. This control feature enables optimal signal integrity as well as optimal EMI signature on the PCIe clock outputs.

• PCI-Express Gen 1, Gen 2, Gen 3, and Gen 4 common clock compliant
• Gen 3 SRNS Compliant
• Two 100 MHz, 125 MHz, or 200 MHz differential clock outputs
• Supports Serial ATA (SATA) at 100 MHz
• Low power, push-pull HCSL compatible differential outputs
• No termination resistors required
• Dedicated output enable hardware pins for each clock output
• Dedicated hardware pins for spread spectrum and frequency control on differential outputs

• Network attached storage
• Multi-function printer
• Wireless access point
• Routers