PI6C49021 Datasheet, PDF (1/15 Pages) Pericom Semiconductor Corporation – Low Power High Integration Clock Generator

PI6C49021
Low Power High Integration Clock Generator
Features
ÎÎ3.3V supply voltage
ÎÎ25MHz XTAL or reference clock input
ÎÎOutput
àà 3 x low power PCIe 2.0 100MHz clock with spread
spectrum support and integrate series termination
resistor
àà 2 x 66.667MHz LVCMOS clock for CPU
àà 1 x 125MHz LVCMOS clock for Gigabit Ethernet
àà 2 x 50MHz LVCMOS clock for CPLD
àà 3 x 25MHz LVCMOS clock for Ethernet PHY
àà 2 x 25MHz low jitter LVPECL Ethernet clock
àà 1 x 24MHz LVCMOS for USB PHY
ÎÎPackaging (Pb free and Green)
àà 48-pin TQFN
Description
The new PI6C49021 is a high integration clock generator intended
for all kinds of embedded applications and networking application
with PCIe interface. The device is the most cost effective way
to generate multi-frequencies and multi-outputs clocks from
a 25MHz crystal and reference clock. The device can generate
100MHz HCSL clock, single-ended clocks includes 24MHz,
25MHz, 50HMz, 125HMz, and low jitter 25MHz LVPECL clock.
Block Diagram
X1
25MHz XTAL or
clock input
X2
OE_PCIE
OE_PECL
SCLK
SDATA
KA
T
Crystal
Oscillator
3
2
PLL Clock Synthesis
& Spread Spectrum
& Control Circuit
2
3
I2C Control
2
Circuit
PCIE(0-2)
SE_66M(0~1)
SE_125M
SE_50M(0~1)
SE_25M(0,2)
2)
SE_24M
PECL_25M(0~1)
13-0015
1
www.pericom.com
P-0.1
02/27/13