Rainbow-electronics MAX3983 Bedienungsanleitung PDF herunterladen

General Description

The MAX3983 is a quad copper-cable signal conditioner

that operates from 2.5Gbps to 3.2Gbps. It provides com-

pensation 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 preem-

phasis 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.

Applications

4x InfiniBand (4 x 2.5Gbps)

10Gbase-CX4 Ethernet (4 x 3.125Gbps)

10G Fibre Channel XAUI (4 x 3.1875Gbps)

4x Copper-Cable or Backplane Transmission

(1Gbps to 3.2Gbps)

Features

♦ 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

MAX3983

Quad Copper-Cable Signal Conditioner

________________________________________________________________ Maxim Integrated Products 1

MAX3983

RX_SD1

RX_SD2

RX_SD3

RX_SD4

TX_SD1

TX_SD2

TX_SD3

TX_SD4

TX_OUT1

TX_OUT2

TX_OUT3

TX_OUT4

RX_IN1

RX_IN2

RX_IN3

RX_IN4

TX_IN1

TX_IN2

TX_IN3

TX_IN4

RX_OUT1

RX_OUT2

RX_OUT3

RX_OUT4

4.7kΩ 4.7kΩ

3V TO 5.5V

TO HOST

TX_ENABLE

RX_ENABLE

TX_PE0

RX_PE

TX_PE1

SERDES

≤0.5m

[1:4]

3.3V

GND

POR

LOOPBACK

TO HOST

0.01µF 0.01µF

TO MAX3983

4x COPPER CABLE ASSEMBLY

≤20m (24AWG)

≤15m (28AWG)

GND

POR

Typical Application Circuit

Ordering Information

19-2928; Rev 0; 7/03

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

PART TEMP RANGE

PIN-

PACKAGE

PKG CODE

MAX3983UGK 0°C to +85°C 68 QFN G6800-4

Pin Configuration appears at end of data sheet.

1 2 3 4 5 6 ... 15 16

Inhaltsverzeichnis

Seite 1 - Ordering Information

General DescriptionThe MAX3983 is a quad copper-cable signal conditionerthat operates from 2.5Gbps to 3.2Gbps. It provides com-pensation for 4x copper

Seite 2 - ELECTRICAL CHARACTERISTICS

MAX3983Quad Copper-Cable Signal Conditioner10 ______________________________________________________________________________________Pin Description (c

Seite 3

Detailed DescriptionThe MAX3983 comprises a PC board receiver andcable driver section (TX), as well as a cable receiverand PC board driver section (RX

Seite 4

MAX3983Applications InformationSignal-Detect Output Leakage CurrentConsiderationsIf all four RX or TX signal-detect outputs are to be con-nected toget

Seite 5

MAX3983 will produce excessive crosstalk in InfiniBandand CX4 cable assemblies.CrosstalkFor InfiniBand and 10Gbase-CX4 applications, it isimperative t

Seite 6

MAX3983Quad Copper-Cable Signal Conditioner14 ______________________________________________________________________________________GNDLVTTL IN40kΩPIN

Seite 7 - MAX3983 toc06

MAX3983Quad Copper-Cable Signal Conditioner______________________________________________________________________________________ 15TX_IN3-TX_IN3+GNDT

Seite 8 - MAX3983 toc08

MAX3983Quad Copper-Cable Signal ConditionerMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Max

Seite 9 - Pin Description

MAX3983Quad Copper-Cable Signal Conditioner2 _______________________________________________________________________________________ABSOLUTE MAXIMUM R

Seite 10 - Pin Description (continued)

MAX3983Quad Copper-Cable Signal Conditioner_______________________________________________________________________________________ 3ELECTRICAL CHARACT

Seite 11 - Detailed Description

MAX3983Quad Copper-Cable Signal Conditioner4 _______________________________________________________________________________________ELECTRICAL CHARACT

Seite 12 - Applications Information

MAX3983Quad Copper-Cable Signal Conditioner_______________________________________________________________________________________ 5ELECTRICAL CHARACT

Seite 13 - Interface Schematics

MAX3983Quad Copper-Cable Signal Conditioner6 _______________________________________________________________________________________PE = 12dBPE = 3dBV

Seite 14 - TX_SD[1:4]

MAX3983Quad Copper-Cable Signal Conditioner_______________________________________________________________________________________ 7Typical Operating

Seite 15 - Chip Information

MAX3983Quad Copper-Cable Signal Conditioner8 _______________________________________________________________________________________Typical Operating

Seite 16 - Package Information

MAX3983Quad Copper-Cable Signal Conditioner_______________________________________________________________________________________ 9Pin DescriptionPIN

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Rainbow-electronics MAX3983 Bedienungsanleitung

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Inhaltsverzeichnis

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