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RAA278842, RAA278843

LCD Video Processor with Decoder, LVDS, TTL, MIPI, Image Enhancement,

and Video Integrity Diagnostic

Data Short

To request the full datasheet, visit the RAA278842, RAA278843 device pages.

The RAA278842

and RAA278843 are highly

integrated LCD video processors that incorporate

many of the features required to create a cost

effective multipurpose LCD display system. These

include a high quality 2D comb NTSC/PAL/SECAM

video decoder that supports single-ended or

differential composite video inputs, two TTL digital

input interfaces, two LVDS Open LDI input interfaces,

a MIPI-CSI2 input interface, and an EEPROM/SPI

interface. The outputs include a dual channel LVDS

Open LDI panel interface and a separate MIPI-CSI2

output in the RAA278842 or a pseudo BT.656 output

in the RAA278843. Both devices can support input

resolutions up to 1080p and can drive LCD panels up

to 1920x1080. The video processing capabilities

include arbitrary H/V scaling using a high quality

scaler and de-interlacer engine, panoramic scaling,

image mirroring, image adjustment and enhancement

using 10-bit per color processing, black and white

stretch, a versatile OSD, and much more. In addition,

the RAA278842 and RAA278843 have a multi-feature

image integrity diagnostic capability to dynamically

determine if the input video is corrupted. The feature

set and versatility of this device makes it an ideal

solution for automotive LCD display applications.

Applications

• Automotive display

• Industrial/military displays

• Portable/consumer displays

Related Literature

For a full list of related documents, visit our website:

• RAA278842

and RAA278843 device pages

Features

Analog Video Decoder

• Supports NTSC (M, 4.43) and PAL (B, D, G, H, I, M,

N, N combination), PAL (60), SECAM with

automatic format detection

• High quality adaptive 2D comb filter for both NTSC

and PAL inputs

• 10-bit ADC and analog clamping circuit

• Fully programmable static gain or automatic gain

control for the CVBS channel

• Programmable white peak control for the CVBS

channel

• Four single-ended or 2 differential CVBS input

• PAL delay line for color phase error correction

• Image enhancement with 2D dynamic peaking/CTI

• Digital subcarrier PLL for accurate color decoding

• Programmable hue, brightness, saturation,

contrast, and sharpness

• Digital horizontal PLL and advanced

synchronization processing for superior VCR

playback and weak signal performance

Digital Input Support

• Supports two parallel digital input ports up to 32 bits

total, with many combinations (24 + 8, 16 + 16, etc.)

• Supports BT.656, 8-bit and 16-bit BT.601, and

BT.1120 video formats

• Supports YCbCr/RGB 24-bit input up to 1080p

resolution

• Dual channel LVDS open LDI inputs - up to 150MHz

per channel or in Dual mode (75MHz per channel)

• MIPI-CSI2 input

○ One four lane single channel MIPI-CSI2 input port

(1Gb/lane)

○ Dual two lane channel MIPI-CSI2 input port

(1Gb/lane)

• Supports 1.8 ~ 3.3V logic thresholds

RAA278842, RAA278843

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TFT Panel Support

• Supports 3, 4, 6, or 8 bits per pixel up to 16.8 million colors with built-in dithering engine

• Supports single channel LVDS panels up to 1920x1080 resolution (150MHz)

• Supports dual channel LVDS up to 1920x1080 resolution (150MHz)

MIPI-CSI2 Output – RAA278842 only

• Four lane MIPI-CSI2 output port (1.2Gb/lane)

• Supports YUV422 and 24-bit RGB data formats

Pseudo BT.656 Output – RAA278843 only

• Independent BT.656 compatible YCbCr(4:2:2) output format

• YCbCr(4:2:2) output generated from all input paths

• Output processed through scaler bypass mode

Font Based On-Screen Display

• Four windows font OSD with bordering/shadow

• 13824 bytes programmable font RAM and 1024 characters display RAM

• 1/2/3/4 bits per pixel

• Supports variable width (12/16), height (2~32)

SPI Flash Based On-Screen Display

• Supports fast register initialization by SPI-DMA

• Nine bitmap-based OSD windows in two layers through SPI with alpha blending between layers

• Supports 4/6/8 bits/pixel

• Supports RLE decompression for two windows

• Shares pins with EEPROM interface

EEPROM Interface

• EEPROM interface for fast boot register initialization

• Shares pins with SPI Flash memory interface

Image Processing

• A high quality scaler with both up/down scaling support

• Built-in 2D de-interlacing function

• Supports programmable cropping of input video and graphics

• Independent RGB gain and offset controls

• 10-bit per color processing

• 10-bit image enhancement processing and 10-bit Gamma correction

Clock Generation

• Spread spectrum PLL integrated to each scaler path

• Programmable modulation frequency and spread width