MAX3690

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

Low-Power 622Mbps Mux

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Status Explanations for product status codes

Part Number Status
MAX3690 Active: In Production. But some versions of the family are subject to Last Time Buy. See Ordering Information.

Description

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.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 2 (PDF, 448kB)
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An evaluation kit is available: MAX3690EVKIT

Key Features

  • 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
 

Applications/Uses

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

Key Specifications:

Datacom Serializers/Deserializers
Part Number Functions Target Serial Oper. Range
(Gbps)
VSUPPLY
(V)
ICC
(mA)
Config. Parallel I/F Data Rate
(Mbps)
Serial I/F Data Rate
(Mbps)
Parallel I/F Logic Lvls. Serial I/F Logic Lvls. Package/Pins Oper. Temp.
(°C)
Budgetary Price
typ See Notes
MAX3690  Datacom Serializer <1 3.3 60 8-to-1 77 622 TTL Diff. 3.3V PECL
LQFP/32
-40 to +85 $9.79 @1k
See All Datacom Serializers/Deserializers (9)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


Diagram

MAX3690: Typical Operating Circuit
Typical Operating Circuit

Notes and Comments

TTL Inputs and PECL Outputs

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Information Index

Document Ref.: 19-4774 Rev 2; 2004-08-17
This page last modified: 2007-06-01




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