SI52143 Overview
The Si52143 is a spread-spectrum enabled PCIe clock generator that can source four PCIe clocks and a 25 MHz reference clock. The device has three hardware output enable pins for enabling the outputs (on the fly while powered on), and one hardware pin to control spread spectrum on PCIe clock outputs. In addition to the hardware control pins, I2C programmability is also available to dynamically control skew, edge rate...
SI52143 Key Features
- PCI-Express Gen 1, Gen 2, Gen 3
- Four PCI-Express clocks
- 25 MHz reference clock output
- Gen 3 SRNS pliant
- 25 MHz crystal input or clock input
- Supports Serial ATA (SATA) at
- Signal integrity tuning
- I2C support with readback
- Low power, push-pull HCSL
- Triangular spread spectrum profile