SI52112-A1 Datasheet, PDF (1/20 Pages) Silicon Laboratories – PCI-EXPRESS GEN 1 DUAL OUTPUT CLOCK GENERATOR

Si52112-A1/A2
PCI-EXPRESS GEN 1 DUAL OUTPUT CLOCK GENERATOR
Features
 PCI-Express Gen 1 compliant  3.3 V Power supply
 Low power HCSL differential
output buffers
 Small package 10-pin TDFN
(3x3 mm)
 Supports Serial-ATA (SATA) at  Si52112-A1 does not support
100 MHz
spread spectrum outputs
 No termination resistors required  Si52112-A2 supports 0.5% down
 25 MHz Crystal Input or Clock
spread outputs
input
 For PCIe Gen 2 applications, see
 Triangular spread spectrum
Si52112-B3/B4
profile for maximum EMI
 For PCIe Gen 3 applications, see
reduction (Si52112-A2)
Si52112-B5/B6
 Extended Temperature:
–40 to 85 °C
Applications
 Network Attached Storage
 Multi-function Printer
 Wireless Access Point
 Routers
Description
Si52112-A1/A2 is a high-performance, PCIe clock generator that can
source two PCIe clocks from a 25 MHz crystal or clock input. The clock
outputs are compliant to PCIe Gen 1 specifications. The ultra-small
footprint (3x3 mm) and industry leading low power consumption make
Si52112-A1/A2 the ideal clock solution for consumer and embedded
applications.
Ordering Information:
See page 13
Pin Assignments
VDD 1
XOUT 2
XIN/CLKIN ³
VSS 4
VSS 5
10 VDD
9 DIFF2
8 _DIFF2
7 DIFF1
6 DIFF1
Patents pending
VDD
XIN/CLKIN
XOUT
PLL
Divider
DIFF1
DIFF2
VSS
Rev 1.2 7/14
Copyright © 2014 by Silicon Laboratories
Si52112-A1/A2