SI5020 Datasheet, PDF (1/18 Pages) List of Unclassifed Manufacturers – SiPHY MULTI-RATE SONET/SDH CLOCK AND DATA RECOVERY IC

Si5020
SiPHY™ MULTI-RATE SONET/SDH CLOCK AND DATA RECOVERY IC
Features
Complete high speed, low power, CDR solution includes the following:
! Supports OC-48/12/3, STM-16/4/1,
Gigabit Ethernet, and 2.7 Gbps FEC
! Low Power—270 mW (TYP OC-48)
! Small Footprint: 4 mm x 4 mm
! DSPLL™ Eliminates External Loop
Filter Components
! 3.3 V Tolerant Control Inputs
! Exceeds All SONET/SDH
Jitter Specifications
! Jitter Generation
3.0 mUI_RMS (TYP)
! Device Power Down
! Loss-of-Lock Indicator
! Single 2.5 V Supply
Ordering Information:
See page 14.
Applications
! SONET/SDH/ATM Routers
! Add/Drop Multiplexers
! Digital Cross Connects
! Gigabit Ethernet Interfaces
! SONET/SDH Test Equipment
! Optical Transceiver Modules
! SONET/SDH Regenerators
! Board Level Serial Links
Pin Assignments
Si5020
Description
The Si5020 is a fully integrated low-power clock and data recovery (CDR)
IC designed for high-speed serial communication systems. It extracts
timing information and data from a serial input at OC-48/12/3, STM-16/4/1,
or Gigabit Ethernet (GbE) rates. Support for 2.7 Gbps data streams is also
provided for OC-48/STM-16 applications that employ forward error
correction (FEC). DSPLL™ technology eliminates sensitive noise entry
points thus making the PLL less susceptible to board-level interaction and
helping to ensure optimal jitter performance.
The Si5020 represents a new standard in low jitter, low power, and small
size for high speed CDRs. It operates from a single 2.5 V supply over the
industrial temperature range (–40°C to 85°C).
20 19 18 17 16
REXT 1
15 ^PWRDN/CAL
VDD 2
GND 3
REFCLK+ 4
GND
Pad
14 VDD
13 DOUT+
12 DOUT–
REFCLK– 5
11 VDD
6 7 8 9 10
Top View
Functional Block Diagram
LOL
DIN+
DIN–
2
BUF
Bias
DSPLL™
Phase-Locked
Loop
2
2
Retimer
BUF
BUF
DOUT+
2
DOUT–
PWRDN/CAL
CLKOUT+
2 ^CLKOUT–
REXT
RATESEL1–0 REFCLK+
REFCLK–
Preliminary Rev. 0.8 12/00
Copyright © 2000 by Silicon Laboratories
Si5020-DS08
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.