SNLS269B – AUGUST 2007 – REVISED MAY 2013
LM2512A Mobile Pixel Link (MPL-1), 24-Bit RGB Display Interface Serializer with Optional
Dithering and Look Up Table
Check for Samples: LM2512A
•2 24-bit RGB Interface Support up to 640 x 480
• Optional 24 to 18-bit Dithering
• Optional Look Up Table for Independent Color
• MPL-1 Physical Layer
• SPI Interface for Look Up Table Control and
• Low Power Consumption & Powerdown State
• Level Translation Between Host and Display
• Optional Auto Power Down on STOP PCLK
• Frame Sequence Bits Auto Resync upon Data
or Clock Error
• 1.6V to 2.0V Core / Analog Supply Voltage
• 1.6V to 3.0V I/O Supply Voltage Range
• Dithered Data Reduction
• Independent RGB Color Correction
• 24-bit Color Input
• Small Interface, Low Power and Low EMI
• Intrinsic Level Translation
The LM2512A is a MPL Serializer (SER) that
performs a 24-bit to 18-bit Dither operation and
serialization of the video signals to Mobile Pixel link
(MPL) levels on only 3 or 4 active signals. An optional
Look Up Table (Three X 256 X 8 bit RAM) is also
provided for independent color correction. 18-bit
Bufferless or partial buffer displays from QVGA (320
x 240) up to VGA (640 x 480) pixels can utilize a 24-
bit video source.
The interconnect is reduced from 28 signals to only 3
or 4 active signals with the LM2512A and companion
deserializer easing flex interconnect design, size
constraints and cost.
The LM2512A SER resides by the application,
graphics or baseband processor and translates the
wide parallel video bus from LVCMOS levels to serial
Mobile Pixel Link levels for transmission over a flex
cable (or coax) and PCB traces to the DES located
near or in the display module.
When in Power_Down, the SER is put to sleep and
draws less than 10μA. The link can also be powered
down by stopping the PCLK (DES dependant) or by
the PD* input pins.
The LM2512A provides enhanced AC performance
over the LM2512. It implements the physical layer of
the MPL-1 and uses a single-ended current-mode
Typical 3 MD Lane Application Diagram - Bridge Chip
P 256 X
at 18-Bit Color Depth
[Supply, Configuration pins,
and bypass caps. and grounding not shown]
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
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.
Copyright © 2007–2013, Texas Instruments Incorporated