1
DATASHEET
16-Bit Long-Reach Video Automotive Grade SERDES
with Bi-directional Side-Channel
ISL76321
The ISL76321 is a serializer/deserializer of LVCMOS parallel
video data. The video data presented to the serializer on the
parallel LVCMOS bus is serialized into a high-speed differential
signal. This differential signal is converted back to parallel video
at the remote end by the deserializer. It also transports auxiliary
data bi-directionally over the same link during the video vertical
retrace interval. I
2
C bus mastering allows the placement of
external slave devices on the remote side of the link. An I
2
C
controller can be placed on either side of the link allowing
bidirectional I
2
C communication through the link to the external
devices on the other side. Both chips can be fully configured from
a single controller or independently by local controllers.
Related Literature
• ISL34341 Data Sheet “WSVGA 24-Bit Long-Reach Video
SERDES with Bi-directional Side-Channel”
Features
• 16-bit RGB transport over a single differential pair
• 6MHz to 50MHz pixel clock rates
• AEC-Q100 qualified component
• Bi-directional auxiliary data transport without extra bandwidth
and over the same differential pair
• Hot-plugging with automatic resynchronization every HSYNC
•I
2
C bus mastering to the remote side of the link with a
controller on either the serializer or deserializer
• Selectable clock edge for parallel data output
• DC-balanced with industry standard 8b/10b line code allows
AC-coupling, providing immunity against ground shifts
• 16 programmable settings each for transmitter amplitude
boost and pre-emphasis and receiver equalization, allow for
longer cable lengths and higher data rates
• Slew rate control and spread spectrum capability on outputs
reduce the potential for EMI
• Same device for serializer and deserializer simplifies inventory
Applications
• Video entertainment systems
•Remote cameras
SERIOP
SERION
27nF
27nF
SERIOP
SERION
27nF
27nF
ISL76321
DESERIALIZER
PCLK_IN
RGB
REF_CLK
PCLK_OUT
VSYNC
HSYNC
DE
VIDEO_TX
I2CA0
I2CA1
REF_RES
TEST_EN
GND_CR
GND_P
GND_AN
GND_TX
GND_CDR
GND_IO
RSTB/PDB
VDD_IO
VDD_CR
VDD_P
VDD_AN
VDD_TX
VDD_CDR
3.16k
3.3V 1.8V VDD_IO
16
VIDEO
TARGET
ISL76321
SERIALIZER
RGB
PCLK_IN
VSYNC
HSYNC
DE
VIDEO_TX
I2CA0
I2CA1
REF_RES
TEST_EN
GND_CR
GND_P
GND_AN
GND_TX
GND_CDR
GND_IO
RSTB/PDB
VDD_IO
VDD_CR
VDD_P
VDD_AN
VDD_TX
VDD_CDR
3.3V 1.8V VDD_IO
VDD_IO
16
VIDEO
SOURCE
3.16k
FIGURE 1. TYPICAL APPLICATION
May 1, 2015
FN7803.2
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
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