PI6LC48P0301 Datasheet, PDF (1/12 Pages) Pericom Semiconductor Corporation – 3-Output LVPECL Networking Clock Generator

PI6LC48P0301
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
(1.875MHz – 20MHz): 0.16ps (typical)
ÎÎRMS phase jitter @ 156.25MHz, using a 25MHz crystal
(12kHz – 20MHz): 0.32ps (typical)
ÎÎFull 3.3V or 2.5V supply modes
ÎÎCommercial and industrial ambient operating temperature
ÎÎAvailable in lead-free package: 24-TSSOP
Description
The PI6LC48P0301 is a 3-output LVPECL synthesizer optimized
to generate Ethernet reference clock frequencies and is a mem-
ber of Pericom’s HiFlex family of high performance clock solu-
tions. Using a 19.53125MHz or 25MHz crystal, the most popular
Ethernet frequencies can be generated based on the settings of 4
frequency select pins.
The PI6LC48P0301 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#
13-0116
1
www.pericom.com
PI6LC48P0301
Rev. A
07/30/13