Datasheet > SI5020

SI5020

更新时间： 2024-11-24 22:43:15

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描述
SiPHY MULTI-RATE SONET/SDH CLOCK AND DATA RECOVERY IC

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SI5020 数据手册

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,

Exceeds All SONET/SDH

Jitter Specifications

Gigabit Ethernet, and 2.7 Gbps FEC

! Low Power—270 mW (TYP OC-48)

! Small Footprint: 4 mm x 4 mm

Jitter Generation

3.0 mUI_RMS(TYP)

Device Power Down

Loss-of-Lock Indicator

Single 2.5 V Supply

! DSPLL™ Eliminates External Loop

Ordering Information:

Filter Components

! 3.3 V Tolerant Control Inputs

See page 14.

Applications

Pin Assignments

Si5020

! SONET/SDH/ATM Routers

! Add/Drop Multiplexers

SONET/SDH Test Equipment

Optical Transceiver Modules

SONET/SDH Regenerators

Board Level Serial Links

! Digital Cross Connects

! Gigabit Ethernet Interfaces

20 19 18 17

Description

PWRDN/CAL

VDD

REXT

VDD

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.

GND

Pad

DOUT+

GND

12 DOUT–

REFCLK+

REFCLK–

VDD

Top View

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).

Functional Block Diagram

LOL

DSPLL™

Phase-Locked

Loop

DIN+

DIN–

DOUT+

DOUT–

Retimer

BUF

PWRDN/CAL

CLKOUT+

CLKOUT–

Bias

RATESEL1–0

REFCLK+

REFCLK–

REXT

Preliminary Rev. 0.8 12/00

Si5020-DS08

This information applies to a product under development. Its characteristics and specifications are subject to change without notice.

12 3 4 5 6 7...18

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