Silicon Laboratories Si5321-EVB Manual

E
V A L U A T I O N
C M
L O C K U L T I PL I E R
Description
The Si5321-EVB is the customer evaluation board for
the Si5321 SONET/SDH Precision Port Card Clock IC.
This board is supplied to customers for evaluation of the
Si5321 device. The board provides access to signals
associated with normal operation of the device and
signals that are reserved for factory testing purposes.

Function Block Diagram

3.3 V or 2.5 V
Supply
Pow er
Supply
Input
CLKIN
Rev. 0.4 06/02
B
O A R D F O R T H E
I C
3.3 V/2.5 V
Supply
Selection
+
CLKIN
–
Factory Factory
Test Test
Input Output
Header Header
Copyright © 2002 by Silicon Laboratories
S i 5 3 2 1 S O N E T / S D H P
Features
 Single supply at either 3.3 or 2.5 V (jumper
configurable)
 Differential I/Os ac coupled on board
 Differential inputs terminated on board

Control input signals are switch configurable
 Status outputs brought out to headers for easy
access.
Control Status
Input Output
Jumper Signal
Header Header
Control Status
Inputs Outputs
CLKOUT
Si5321
Factory
Test
Factory Factory
Analog
Test Test
Output
Serial Serial
Input Output
Si 5 3 2 1 - EVB
R E C I S I O N
t
e
x
50 
+
t
50 
t
–
e
x
t
CLKOUT
Si5321-EVB-04