1
250MHz Triple Differential Receiver/ Equalizer with I2C
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
Decodes HSYNC and VSYNC signals embedded in common
mode
I2C interface with four unique addresses
±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
RIN-
RIN+
ISL59911
50
1k
0.1F
GIN+
GIN-
BIN+
BIN-
SCL
SDA
SYSTEM
MICRO-
CONTROLLER
I2C INTERFACE
ISL59311
OR
EL4543
TRIPLE
DIFFERENTIAL
VIDEO
DRIVER
RP
ADDR0
ADDR1
ROUT
GOUT
BOUT
HSOUT/RCM
VSOUT/GCM
BCM
NC
RREF
GREF
BREF
TERMINATION
NETWORK
TERMINATION
NETWORK
UP TO 300m OF
CAT X CABLE
+5V
ENABLE
-5V
+5V
CBYPASS
*
x3
CBYPASS
*
x3
V+
V- and
THERMAL
PAD
GND
+5V
75 x3
ISL59920
ISL59921
ISL59922
or
ISL59923
VIDEO
DELAY
LINE
FIGURE 1. TYPICAL APPLICATION CIRCUIT
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|Copyright Intersil Americas Inc. 2011. All Rights Reserved
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