MAX3983 Quad Copper-Cable Signal Conditioner

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The MAX3983 is a quad copper-cable signal conditioner that operates from 2.5Gbps to 3.2Gbps. It provides compensation for 4x copper InfiniBand® and 10Gbase-CX4 Ethernet links, allowing spans of 20m with 24AWG and 15m with 28AWG. The cable driver section provides four selectable preemphasis levels. The input to the cable driver compensates for up to 0.5m of FR4 circuit board material. The cable receiver section provides additional fixed input equalization while offering selectable preemphasis to drive FR4 circuit boards up to 0.5m.

The MAX3983 also features signal detection on all eight inputs and internal loopback that allows for diagnostic testing. It is packaged in a 10mm x 10mm, 68-pin QFN and operates from 0°C to +85°C.

Key Features

Applications/Uses

Link Features
- Span 20m with 24AWG, 15m with 28AWG
- Span 0.5m of FR4 on Each Host
- 1.6W Total Power with 3.3V Supply
- Loopback Function
Cable Driver Features
- Selectable Output Preemphasis
- FR4 Input Equalization
- Signal Detect for Each Channel
- Output Disable
Cable Receiver Features
- Selectable FR4 Output Preemphasis
- Cable Input Equalization
- Signal Detect for Each Channel
- Output Disable

	10G Fibre Channel XAUI (4 x 3.1875Gbps)
	10Gbase-CX4 Ethernet (4 x 3.125Gbps)
	4x Copper-Cable or Backplane Transmission (1Gbps to 3.2Gbps)
	4x InfiniBand® (4 x 2.5Gbps)

Key Specifications: Equalizers (Cable and Circuit Board)

Part Number

Applications

Min. Data Rate (Mbps)

Max. Data Rate (Mbps)

Max. Reach @ Max. Data Rate

Supply Voltage (V)

I/O Type

Channels Per Part

Typ. Rx Eq. @ Max. Rate (dB)

Typ. Tx Eq. @ Max. Rate (dB)

EV-Kit

RoHS Available

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

MAX3983

•	Copper Cable Interconnect

•

Ethernet

•	Fibre channel

•	Infiniband

•	Printed Circuit Board Interconnect

•

XAUI

1000

3200

15m Cable
1m FR4

3.3

CML

Yes

QFN/68

100

0 to +85

$29.98 @ 1k

See All Equalizers (Cable and Circuit Board) (18)

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.