MAX3800

3.2Gbps Adaptive Equalizer and Cable Driver

Industry's First 3.2Gbps Adaptive Cable Equalizer/Driver

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Status Explanations for product status codes

Active: In Production.

Description

The MAX3800 is a +3.3V adaptive cable equalizer and cable driver implemented together on a single chip. It is designed for coaxial and twin-axial cable point-to-point communications applications. The driver features differential current-mode logic (CML) inputs and outputs as well as adjustable output amplitude. The equalizer includes differential CML data inputs and outputs, a loss-of-signal (active-low LOS) output, and a cable integrity monitor (CIM) output.

The adaptive cable equalizer is capable of equalizing differential or single-ended signals at data rates up to 3.2Gbps. It automatically adjusts to attenuation caused by skin-effect losses of up to 30dB at 1.6GHz. The equalizer effectively extends the usable length of copper cable in high-frequency interconnect applications.

The MAX3800 is available in a 32-pin TQFP package with exposed pad and consumes only 200mW at +3.3V. The driver can be disconnected from the power supply when it is not needed, resulting in a 40% reduction in supply current.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 3 (PDF, 764kB)
Send this datasheet to any email addressE-Mail
An evaluation kit is available: MAX3800EVKIT

Key Features

  • Single +3.3V Operation
  • Typical Power Dissipation = 200mW at +3.3V
  • Data Rates Up to 3.2Gbps
  • Adjustable Cable Driver Output Amplitude
  • Equalizer Automatically Adjusts for Different Cable Lengths
  • 0dB to 30dB Equalization at 1.6GHz (3.2Gbps)
  • Loss-of-Signal (active-low LOS) Indicator
  • Cable Integrity Monitor (CIM)
  • On-Chip Input and Output Terminations
  • Low External Component Count
  • Operating Temperature Range = 0°C to +85°C
  • ESD Protection on Cable Inputs and Outputs
 

Applications/Uses

  • Backplane and Interconnect Applications
  • High-Speed Links in Communications and Data Systems
  • SDH/SONET Transmission Equipment
   

Key Specifications:

Equalizers (Cable and Circuit Board)
Part Number Applications Data Rate
(Mbps)
Data Rate
(Mbps)
Max. Reach @ Max. Data Rate VSUPPLY
(V)
I/O Type Channels Rx Eq. @ Max. Rate
(dB)
Package/Pins Smallest Available Pckg.
(mm2)
Oper. Temp.
(°C)
Budgetary Price
min max typ max w/pins See Notes
MAX3800 
Copper Cable Interconnect
Printed Circuit Board Interconnect
SDH/ SONET/ DWDM/ ATM/ PONs
622 3200 30m Cable 3.3 CML 1 30
QFN/32
TQFN/32
TQFP-EP/32
26 0 to +85 $6.90 @1k
See All Equalizers (Cable and Circuit Board) (21)
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

MAX3800: Typical Application Circuit
Typical Application Circuit

More Information

New Product Press Release 2001-01-30 ]

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Information Index

Document Ref.: 19-1953 Rev 3; 2005-12-01
This page last modified: 2007-06-14




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