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DS92LV0421, DS92LV0422
SNLS325D – MAY 2010 – REVISED DECEMBER 2016
DS92LV042x 10-MHz to-75 MHz Channel Link II Serializer and Deserializer With LVDS Parallel Interface
1 Features
•1 5-Channel (4 Data + 1 Clock) Channel Link LVDS Parallel Interface Supports 24-Bit Data 3-Bit Control at 10 to 75 MHz
• AC-Coupled STP Interconnect Up to 10 m • Integrated Terminations on Serializer and
Deserializer • At-Speed Link BIST Mode and Reporting Pin • Optional I2C-Compatible Serial Control Bus • Power-Down Mode Minimizes Power Dissipation • 1.8-V or 3.3-V Compatible LVCMOS I/O Interface • >8-kV HBM • –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)
– Fast Random Data Lock; No Reference Clock Required
– Adjustable Input Receiver Equalization – EMI Minimization on Output Parallel Bus
(SSCG and LVDS VOD Select)
2 Applications
• Embedded Video and Displays • Medical Imaging and Factory Automation • Office Automation (Printers and Scanners) • Security and Video Surveillance • General-Purpose Data Communication
3 Description
The DS92LV042x 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 DS92LV042x enables applications currently using popular Channel Link or OpenLDI LVDS style devices to upgrade seamlessly to an embedded clock interface. This serial bus scheme reduces interconnect cost and eases design challenges. The parallel OpenLDI 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 DS92LV0422 automatically locks to incoming data without an external reference clock or special sync patterns, providing easy plug-and-go operation.
The DS92LV042x chipset is programmable through an I2C interface as well as through pins. A built-in, atspeed 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.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DS92LV0421
WQFN (36)
6.00 mm × 6.00 mm
DS92LV0422
WQFN (48)
7.00 mm × 7.00 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
Typical Application Block Diagram
Channel Link
Channel Link II
Channel Link
VDDIO (1.8V or 3.3V) 1.8V
VDDIO 1.8V 3.3V (1.8V or 3.3V)
RGB Style Display Interface
Camera/AFE Or
HOST Graphics Processor
RxIN3+/RxIN2+/RxIN1+/RxIN0+/RxCLKIN+/-
PDB
MAPSEL CONFIG[1:0]
Optional
SCL SDA ID[x]
DOUT+ DOUTDS92LV0421
High-Speed Serial Link 1 Pair/AC Coupled
100 ohm STP Cable
CMF
BISTEN
VODSEL De-Emph
SSC[2:0]
LFMODE CONFIG[1:0]
MAPSEL
Optional
SCL SDA ID[x]
RIN+ RINDS92LV0422
TxOUT3+/-
TxOUT2+/-
TxOUT1+/-
TxOUT0+/-
TxCLKOUT+/-
LOCK PASS PDB BISTEN OEN OSSEL VODSEL
Frame Grabber Or
RGB Display QVGA to XGA 24-bit Color Depth
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.
DS92LV0421, DS92LV0422
SNLS325D – MAY 2010 – REVISED DECEMBER 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Pin Configuration and Functions ......................... 4 6 Specifications......................................................... 9
6.1 Absolute Maximum Ratings ...................................... 9 6.2 ESD Ratings.............................................................. 9 6.3 Recommended Operating Conditions....................... 9 6.4 Thermal Information ................................................ 10 6.5 Electrical Characteristics: Serializer DC ................. 10 6.6 Electrical Characteristics: Deserializer DC ............. 11 6.7 Electrical Characteristics: DC and AC Serial Control
Bus ........................................................................... 13 6.8 Timing Requirements: Serial Control Bus............... 13 6.9 Switching Characteristics: Serializer ...............