PI6LC48P04 Datasheet, PDF (1/10 Pages) Pericom Semiconductor Corporation – 4-Output LVPECL Networking Clock Generator

PI6LC48P04
4-Output LVPECL Networking Clock Generator
Features
ÎÎFour differential LVPECL output pairs
ÎÎSelectable crystal oscillator interface or LVCMOS/LVTTL
single-ended clock input
ÎÎSupports the following output frequencies: 212.5MHz,
159.375MHz, 106.25MHz, 53.125MHz, 156.25MHz,
187.5MHz
ÎÎRMS phase jitter @ 212.5MHz, using a 26.5625MHz crystal
(12kHz – 20MHz): 0.3ps (typical)
ÎÎFull 3.3V or 2.5V supply modes
ÎÎ-40°C to 85°C ambient operating temperature
ÎÎAvailable in lead-free package: 24-TSSOP
Description
The PI6LC48P04 is a 4-output LVPECL synthesizer optimized
to generate Ethernet and Fibre Channel reference clock frequen-
cies and is a member of Pericom’s HiFlex family of high perfor-
mance clock solutions. Using a 26.5625MHz or a 26.04166MHz
crystal, the following frequencies can be generated based on
the settings of 2 frequency select pins (N_SEL[1:0]): 212.5MHz,
159.375MHz, 106.25MHz, 53.125MHz, and 156.25MHz.
The PI6LC48P04 uses Pericom’s proprietary low phase noise
VCO technology and can achieve less than 1ps typical rms
phase jitter, so it is ideal for Ethernet interface in all kind of
systems.
Applications
ÎÎNetworking systems
Block Diagram
N_SEL[1:0]
PLL_Bypass
XTAL_IN
XTAL_OUT
Ref_IN
IN_SEL
OSC
M_reset
2
Phase
Detector
VCO
M = 24 (fixed)
N_SEL[1:0]
0 0 ÷3
0 1 ÷4
1 0 ÷6
1 1 ÷12
CLK0
CLK0#
CLK1
CLK1#
CLK2
CLK2#
CLK3
CLK3#
15-0092
1
www.pericom.com
PI6LC48P04
Rev.A
07/20/2015