Overview
Description
The RAA279972 is a high-definition analog video decoder designed for automotive applications. It supports single-ended, differential, and pseudo-differential analog composite high-definition AHL video inputs. The high-quality 10-bit video ADC converts the signal to digital, and a proprietary AHL adaptive comb filter separates Luma and Chroma data to output a YUV422 digital video signal over a two-lane MIPI-CSI2 interface or a DVP/BT.656 parallel interface. The RAA279972 has integrated short-to-battery and short-to-ground detection and image enhancement features, making it an ideal solution for demanding high-resolution automotive camera applications. When paired with the RAA279971 encoder, an analog video link is established over a single wire pair.
Features
- AHL Video Decoder
- Software-selectable analog input control allows for combinations of single-ended and differential
- Built-in programmable analog anti-alias filter
- 10-bit ADCs and analog clamping circuit with up to 150MHz sampling frequency
- Fully programmable static gain or automatic gain control
- Programmable white peak control for the Y channel
- 4-H adaptive comb filter Y/C separation
- Digital sub-carrier PLL for accurate color decoding
- Digital horizontal PLL for synchronization processing and pixel sampling
- Automatic color control and color killer
- Programmable output cropping
- Video Processing
- Programmable hue, brightness, saturation, contrast, and sharpness.
- Image enhancement with peaking and CTI
- Black/White stretch
- MIPI Output
- MIPI 1.1 compliant unidirectional output format
- YUV 422 output format
- Up to 1.0Gbps
- 1–2 lane
- Pseudo BT.656 Output
- 8-bit parallel output with embedded sync
- Separate HREF and VREF
- Simultaneous output with MIPI
- Miscellaneous
- Power save and Power-down mode
- Short-to-battery detection test
- Short-to-ground detection test
- Two-wire host serial bus interface
- Single 27MHz crystal for all operations
- 1.8V – 3.3V I/O operation
- 1.8V/3.3V power supply
- 48 Ld QFN
- AEC-Q100 qualified
Comparison
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 2.25 MB | |
| Datasheet - Short-Form | PDF 89 KB | |
| Product Advisory | PDF 110 KB | |
| Product Change Notice | PDF 156 KB | |
| White Paper | PDF 290 KB 日本語 , 简体中文 | |
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Design & Development
Boards & Kits
Evaluation
RTKA279972DA1000BU
Active
Automotive High Definition Link Decoder Evaluation Board
The Automotive High Definition Link (AHL) platform comes with two evaluation boards (EVB). One is an AHL transmitter with integrated AHL encoder (RAA279971), HDMI input connector and camera module interface that offers users a high degree of flexibility to test a variety of video sources and...
Recommended Documents:
Evaluation
RTKA279971DA2000BU
Active
Automotive High Definition Link Encoder Evaluation Board
The Automotive High Definition Link (AHL) platform comes with two evaluation boards (EVB). One is an AHL transmitter with an integrated AHL encoder (RAA279971), HDMI input connector, and camera module interface that offers users a high degree of flexibility to test a variety of video sources and...
Recommended Documents:
Reference Designs
TFT Instrument Cluster with Telematics Board Reference Design
This reference design simplifies the development of advanced automotive displays by integrating Bluetooth® Low Energy connectivity, Wi-Fi mirroring of mobile screens, and brightness control for TFT and camera image displays. Powered by the RH850/D1M1A high-performance MCU with a G3M core running...
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Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
Product Options
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Support
Support Communities
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FAQs
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Can I use the AHL Control Channel to initialize the camera from the ECU?
Yes, AHL's Control Channel works immediately after the chips are powered up. The Control Channel operates independently of the video, so video does not need to be actively transmitting for the Control Channel to work.
Jul 13, 2021 -
Does AHL support GPIO data transmission via the Control Channel link?
Yes, there are between 2-7 GPIO's available, depending on which digital interface is used (MIPI = 7 GPIOs, BT.656 = 4 GPIOs, DVP = 2 GPIOs)
Jul 13, 2021 -
Can AHL support power over the same cables (like SerDes)?
No, there will be too much noise for the analog signal, but we are looking at how to include power over the same cables in future generations of AHL.
Jul 13, 2021
Videos & Training
Watch the image quality comparison between Automotive High-Definition Link (AHL) and digital video, and find out how AHL technology works.
News & Blog Posts
Blog Post
Jul 13, 2021
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