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DS92LV0421SQ Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DS92LV0421SQ
Description  10 - 75 MHz Channel Link II Serializer/Deserializer with LVDS Parallel Interface
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DS92LV0421SQ Datasheet(HTML) 1 Page - National Semiconductor (TI)

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DS92LV0421 / DS92LV0422
PRELIMINARY
May 26, 2010
10 - 75 MHz Channel Link II Serializer/Deserializer with
LVDS Parallel Interface
General 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 inter-
face 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 inter-
face 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 dis-
tance 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 inter-
changeably with the DS92LV2421 or DS92LV2422. This al-
lows designers the flexibility to connect to the host device and
receiving devices with different interface types, LVDS or LVC-
MOS.
Features
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)
Applications
Embedded Video and Display
Machine Vision, Industrial Imaging, Medical Imaging
Office Automation — Printers, Scanners, Copiers
Security and Video Surveillance
General purpose data communication
Applications Diagram
30120927
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 2010 National Semiconductor Corporation
301209
www.national.com


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