SI52143 CLOCK GENERATOR Datasheet

SI52143 CLOCK GENERATOR

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 programmabil.

Features

 PCI-Express Gen 1, Gen 2, Gen 3,
 Four PCI-Express clocks and Gen 4 common clock compliant
 25 MHz reference clock output
 Gen 3 SRNS Compliant
 25 MHz crystal input or clock input
 Supports Serial ATA (SATA) at
 Signal integrity tuning 100 MHz
 I2C support with readback
 Low power, push-pull HCSL capabilities compatible differential outputs
 Triangular spread spectrum profile
 No termination resistors required for maximum electromagnetic
 Dedicated output enable hardware interference (EMI) reduction pins for each clock output
 Spread enable pin on differential c.

No.	Partie #	Fabricant	Description
1	SI52146	Silicon Laboratories	CLOCK GENERATOR
2	Si52147	Silicon Laboratories	CLOCK GENERATOR
3	SI52111-A1	Silicon Laboratories	PCI-EXPRESS GEN 1 SINGLE OUTPUT CLOCK GENERATOR
4	SI52111-A2	Silicon Laboratories	PCI-EXPRESS GEN 1 SINGLE OUTPUT CLOCK GENERATOR
5	SI52111-B5	Silicon Laboratories	PCI-EXPRESS GEN 3 SINGLE OUTPUT CLOCK GENERATOR
6	SI52111-B6	Silicon Laboratories	PCI-EXPRESS GEN 3 SINGLE OUTPUT CLOCK GENERATOR
7	SI52112-A1	Silicon Laboratories	PCI-EXPRESS GEN 1 DUAL OUTPUT CLOCK GENERATOR
8	SI52112-A2	Silicon Laboratories	PCI-EXPRESS GEN 1 DUAL OUTPUT CLOCK GENERATOR
9	SI52112-B3	Silicon Laboratories	PCI-EXPRESS GEN 2 DUAL OUTPUT CLOCK GENERATOR
10	SI52112-B4	Silicon Laboratories	PCI-EXPRESS GEN 2 DUAL OUTPUT CLOCK GENERATOR
11	SI52112-B5	Silicon Laboratories	PCI-EXPRESS GEN 3 DUAL OUTPUT CLOCK GENERATOR
12	SI52112-B6	Silicon Laboratories	PCI-EXPRESS GEN 3 DUAL OUTPUT CLOCK GENERATOR

SI52143 - Silicon Laboratories

SI52143 CLOCK GENERATOR

Features

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