MAX3690

+3.3V, 622Mbps SDH/SONET 8:1 Serializer with Clock Synthesis and TTL Inputs

Low-Power 622Mbps Mux

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Overview

Selectable Reference Clock Frequency: 77.76MHz, 51.84MHz, or 38.88MHz
Single +3.3V Supply
77Mbps (8-bit) Parallel to 622Mbps Serial Conversion
Clock Synthesis for 622Mbps Serial Data
200mW Power
TTL Parallel Clock and Data Inputs
Differential 3.3V PECL Serial-Data Output

The MAX3690 serializer is ideal for converting 8-bit-wide, 77Mbps parallel data to 622Mbps serial data in ATM and SDH/SONET applications. Operating from a single +3.3V supply, this device accepts TTL clock and data inputs, and delivers a 3.3V differential PECL serial-data output. A fully integrated PLL synthesizes an internal 622MHz serial clock from a low-speed crystal reference clock (77.76MHz, 51.84MHz, or 38.88MHz).

The MAX3690 is available in the extended-industrial temperature range (-40°C to +85°C) in a 32-pin TQFP package.

Applications

622Mbps ATM/SONET Access Nodes
622Mbps SDH/SONET Transmission Systems
Add/Drop Multiplexers
Digital Cross-Connects

Documentation

Data Sheet 1

MAX3690: +3.3V, 622Mbps SDH/SONET 8:1 Serializer with Clock Synthesis and TTL Inputs Data Sheet (Rev.2) 08/17/2004

This is the most up-to-date revision of the Data Sheet.

Hardware Ecosystem

Parts	Product Life Cycle	Description
Interface Transceivers & Isolators 1
MAX3669	NOT RECOMMENDED FOR NEW DESIGNS	+3.3V, 622Mbps SDH/SONET Laser Driver with Current Monitors and APC
Interface Transmitters 1
MAX3668		+3.3V, 622Mbps SDH/SONET Laser Driver with Automatic Power Control
Serializer/Deserializer (SerDes) & Gigabit Multimedia Serial Link (GMSL) 1
MAX3693		+3.3V, 622Mbps SDH/SONET 4:1 Serializer with Clock Synthesis and LVDS Inputs

Tools & Simulations

IBIS Model 1

MAX3690ECJ IBIS Model

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