DS92LV0421_15 Datasheet, PDF (1/48 Pages) Texas Instruments – 10 - 75 MHz Channel Link II Serializer/Deserializer with LVDS Parallel Interface

DS92LV0421, DS92LV0422
www.ti.com
SNLS325C – MAY 2010 – REVISED APRIL 2013
DS92LV0421 / DS92LV0422 10 - 75 MHz Channel Link II Serializer/Deserializer with LVDS
Parallel Interface
Check for Samples: DS92LV0421, DS92LV0422
FEATURES
1
•2 General
– 5-Channel (4 Data + 1 Clock) Channel Link
LVDS Parallel Interface Supports 24-bit
Data 3-bit Control at 10 – 75 MHz
– AC Coupled STP Interconnect up to 10
Meters in Length
– Integrated Serial CML Terminations
– AT–SPEED BIST Mode and Status Pin
– Optional I2C Compatible Serial Control Bus
– Power Down Mode Minimizes Power
Dissipation
– 1.8V or 3.3V Compatible Control Pin
Interface
– >8 kV ESD (HBM) Protection
– -40° to +85°C Temperature Range
• SERIALIZER – DS92LV0421
– Data Scrambler for Reduced EMI
– DC–Balance Encoder for AC Coupling
– Selectable Output VOD and Adjustable De-
emphasis
• DESERIALIZER – DS92LV0422
– Random Data Lock; no Reference Clock
Required
– Adjustable Input Receiver Equalization
– EMI Minimization on Output Parallel Bus
(Spread Spectrum Clock Generation and
LVDS VOD Select)
DESCRIPTION
The DS92LV0421 (serializer) and DS92LV0422
(deserializer) chipset translates a Channel Link LVDS
video interface (4 LVDS Data + LVDS Clock) into a
high-speed serialized interface over a single CML
pair.
The DS92LV0421 and DS92LV0422 enable
applications that currently use the popular Channel
Link or Channel Link style devices to seamlessly
upgrade to an embedded clock interface to reduce
interconnect cost or ease design challenges. The
parallel LVDS interface also reduces FPGA I/O pins,
board trace count and alleviates EMI issues, when
compared to traditional single-ended wide bus
interfaces.
Programmable transmit de-emphasis, receive
equalization, on-chip scrambling and DC balancing
enables longer distance transmission over lossy
cables and backplanes. The Deserializer
automatically locks to incoming data without an
external reference clock or special sync patterns,
providing easy “plug-and-go” operation.
The DS92LV0421 and DS92LV0422 are
programmable though an I2C interface as well as by
pins. A built-in AT-SPEED BIST feature validates link
integrity and may be used for system diagnostics.
The DS92LV0421 and DS92LV0422 can be used
interchangeably with the DS92LV2421 or
DS92LV2422. This allows designers the flexibility to
connect to the host device and receiving devices with
different interface types, LVDS or LVCMOS.
APPLICATIONS
• Embedded Video and Display
• Machine Vision, Industrial Imaging, Medical
Imaging
• Office Automation — Printers, Scanners,
Copiers
• Security and Video Surveillance
• General Purpose Data Communication
1
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2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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