SI5540 Datasheet, PDF (1/20 Pages) Silicon Laboratories – SiPHY OC-192/STM-64 TRANSMITTER

Si5540
PRELIMINARY DATA SHEET
SiPHY^™ OC-192/STM-64 TRANSMITTER
Features
Complete SONET/SDH transmitter for OC-192/STM-64 data rates with integrated
16:1 multiplexer and DSPLL^™ based clock multiplier unit:
Data Rates Supported: OC-192/STM-64,
10GbE, and 10.7 Gbps FEC
Low Power Operation 0.6 W (typ)
Small Footprint: 99-Pin BGA Package
(11 x 11 mm)
DSPLL™ Based Clock Multiplier Unit
w/ selectable loop filter bandwidths
OIF SFI-4 Compliant Interface
Output Clock Powerdown
Operates with 155 or 622 MHz
Reference Sources
Optional 3.3 V Supply Pin for
LVTTL Compatible Outputs
Single 1.8 V Supply Operation
Applications
Sonet/SDH/ATM Routers
Add/Drop Multiplexers
Digital Cross Connects
Optical Transceiver Modules
Sonet/SDH Test Equipment
Description
The Si5540 is a fully integrated low-power transmitter for high-speed serial
communication systems. It combines high speed clock generation with a 16:1
multiplexer to serialize data for OC-192/STM-64 applications. The Si5540 is based
on Silicon Laboratories’ DSPLL^™ technology which eliminates the external loop
filter components required by traditional clock multiplier units. In addition,
selectable loop filter bandwidths are provided to ensure superior jitter performance
while relaxing the jitter requirements on external clock distribution subsystems.
Support for data streams up to 10.7 Gbps is also provided for applications that
employ forward error correction (FEC).
The Si5540 represents a new standard in low jitter, low power and small size for
10 Gbps serial transmitters. It operates from a single 1.8 V supply over the
industrial temperature range (–40°C to 85°C).
Functional Block Diagram
Si5364
Bottom View
Ordering Information:
See page 17.
REFSEL
REFCLK
TXLOL
BW SEL
TXCLKDSBL
TXCLKOUT
TXDOUT
2
TXC LK 1 6 IN
2
2
B ias
D S P LL ^TM
CMU
R es e t
C on trol
÷ 16
R E FR ATE
2
TX CL K1 6O U T
2
TXCLK16IN
32
TX D IN [1 5:0 ]
FIFORST
REXT
RESET
TXSQLCH
F IFO E R R
TX MSBSEL
Preliminary Rev. 0.31 8/01
Copyright © 2001 by Silicon Laboratories
Si5540-DS031
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.