DS92LV2421SQX-NOPB Datasheet, PDF (1/50 Pages) Texas Instruments – DS92LV2421/DS92LV2422 10 to 75 MHz, 24-bit Channel Link II Serializer and Deserializer

DS92LV2421, DS92LV2422
www.ti.com
SNLS321B – MAY 2010 – REVISED APRIL 2013
DS92LV2421/DS92LV2422 10 to 75 MHz, 24-bit Channel Link II Serializer and Deserializer
Check for Samples: DS92LV2421, DS92LV2422
FEATURES
1
•2 General
– 24–Bit Data, 3–Bit Control, 10 – 75 MHz
Clock
– AC Coupled STP Interconnect Cable up to
10 Meters
– Integrated Terminations on Ser and Des
– AT-SPEED Link BIST Mode and Reporting
Pin
– Optional I2C Compatible Serial Control Bus
– Power Down Mode Minimizes Power
Dissipation
– 1.8V or 3.3V Compatible LVCMOS I/O
Interface
– -40° to +85°C Temperature Range
– >8 kV HBM
• SERIALIZER — DS92LV2421
– Data Scrambler for Reduced EMI
– DC-Balance Encoder for AC Coupling
– Selectable Output VOD and Adjustable De-
emphasis
• DESERIALIZER — DS92LV2422
– FAST Random Data Lock; no Reference
Clock Required
– Adjustable Input Receiver Equalization
– LOCK (Real Time Link Status) Reporting
Pin
– EMI Minimization on Output Parallel Bus
(SSCG)
– Output Slew Control (OS)
DESCRIPTION
The DS92LV2421 (Serializer) / DS92LV2422
(Deserializer) chipset translates a parallel 24–bit
LVCMOS data interface into a single high-speed CML
serial interface with embedded clock information. This
single serial stream eliminates skew issues between
clock and data, reduces connector size and
interconnect cost for transferring a 24-bit or less, bus
over FR-4 printed circuit board backplanes, and
balanced cables.
In addition to the 24-bit data bus interface, the
DS92LV2421 and DS92LV2422 also features a 3-bit
control bus for slow speed signals. This allows
implementing video and display applications with up
to 24–bits per pixel (RGB).
Programmable transmit de-emphasis, receive
equalization, on-chip scrambling and DC balancing
enables longer distance transmission over lossy
cables and backplanes. The DS92LV2422
automatically locks to incoming data without an
external reference clock or special sync patterns,
providing easy “plug-and-go” operation. EMI is
minimized by the use of low voltage differential
signaling, receiver drive strength control, and spread
spectrum clocking capability.
The DS92LV2421, DS92LV2422 chipset is
programmable though an I2C interface as well as
through pins. A built-in AT-SPEED BIST feature
validates link integrity and may be used for system
diagnostics.
The DS92LV2421 is offered in a 48-pin WQFN and
the DS92LV2422 is offered in a 60-pin WQFN
package. Both devices operate over the full industrial
temperature range of -40°C to +85°C.
APPLICATIONS
• Embedded Video and Display
• Medical Imaging
• Factory Automation
• Office Automation — Printer, Scanner
• 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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