1

Interface

ISL59911

The ISL59911 is a triple channel differential receiver and

equalizer optimized for RGB and YPbPr video signals. It

contains three high speed differential receivers with

programmable frequency compensation. The ISL59911

features manual or automatic offset calibration and ±4dB of

gain adjustment range with a resolution of 0.1dB.

The ISL59911 has a bandwidth of 250MHz and consumes only

110mA from a ±5V supply in normal operation.

When deasserted, the ENABLE pin puts the amplifiers into a

low power, high impedance state, minimizing power when not

needed and also allowing multiple devices to be connected in

parallel, allowing two or more ISL59911 devices to function as

a multiplexer.

The ISL59911 can also directly decode the sync signals

encoded onto the common modes of three pairs of Cat 5 cable

(by an ISL59311, EL4543, or similar device) or it can output

the actual common mode voltages for each of the three

channels.

The ISL59911 is available in a 32 Ld QFN package and is

specified for operation over the full -40°C to +85°C

temperature range.

Features

• 250MHz -3dB bandwidth

• 5 Adjustable EQ bands: 100MHz, 20MHz, 6MHz, 1MHz, and

200kHz

• 3rd-order lowpass filter at output with programmable corner

• ±4dB fine gain control with 0.1dB (7-bit) resolution

• Offset calibration minimizes output offset voltage

mode

• ±5V supplies @ 110mA

• 32 Ld 5mm x 6mm QFN package

Applications

• KVM monitor extension

• Digital signage

• General-purpose twisted-pair receiving and equalization

• High-resolution security video

TWISTED-PAIR RGB VIDEO RECEIVER

74HC04 or

SIMILAR

TERMINATION

NETWORK

ISL59911

50

50

50

1k

0.1µF

SCL

SDA

SYSTEM

MICRO-

CONTROLLER

ISL59311

OR

EL4543

TRIPLE

DIFFERENTIAL

VIDEO

DRIVER

ADDR0

ADDR1

NC

TERMINATION

NETWORK

TERMINATION

NETWORK

UP TO 300m OF

CAT X CABLE

+5V

ENABLE

-5V

+5V

*

x3

*

x3

V+

V- and

THERMAL

PAD

GND

+5V

75 x3

ISL59920

ISL59921

ISL59922

or

ISL59923

VIDEO

DELAY

LINE

FIGURE 1. TYPICAL APPLICATION CIRCUIT

*See “Power Supply Bypassing” on

page 10 for more information.

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

September 2, 2011

FN7548.0