PI6LC48P0301A Datasheet, PDF (1/12 Pages) Pericom Semiconductor Corporation – 3-Output LVPECL Networking Clock Generator

PI6LC48P0301A
3-Output LVPECL Networking Clock Generator
Features
ÎÎThree differential LVPECL output pairs
ÎÎSelectable crystal oscillator interface or LVCMOS/LVTTL
single-ended clock input
ÎÎSupports the following output frequencies: 125MHz,
156.25MHz, 312.5MHz, 625MHz
ÎÎRMS phase jitter @ 156.25MHz, using a 25MHz crystal
(12kHz – 20MHz): 0.26ps (typical)
ÎÎRMS phase jitter @ 156.25MHz, using a 25MHz crystal
(12kHz – 20MHz): 0.4ps (max)
ÎÎFull 3.3V or 2.5V supply modes
ÎÎCommercial and industrial ambient operating temperature
ÎÎAvailable in lead-free package: 28-TQFN
Description
The PI6LC48P0301A is a 3-output LVPECL synthesizer opti-
mized to generate Ethernet reference clock frequencies and is
a member of Pericom’s HiFlex^TM family of high performance
clock solutions. Using a 25MHz or other fundamental frequency
crystal, the most popular Ethernet frequencies can be generated
based on the settings of 4 frequency select pins.
The PI6LC48P0301A uses Pericom’s proprietary low phase noise
PLL technology to achieve ultra low phase jitter, so it is ideal for
Ethernet interface in all kind of systems.
Applications
ÎÎNetworking systems
Block Diagram
XTAL_IN
OSC
XTAL_OUT
Ref_IN
IN_SEL#
FBN
M_reset
PFD
VCO
NA_SEL[0:1]
/A
/B
M
PLL_ByPass#
NB_SEL[0:1]
OEA
CLKA
CLKA#
OEB
CLKB0
CLKB0#
CLKB1
CLKB1#
14-0083
1
www.pericom.com
PI6LC48P0301A
Rev. A
06/03/2014