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
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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
Support
Support Communities
FAQs
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AHL 能否支持通过相同电缆供电（如 SerDes）？
不，模拟信号噪音过多，但我们在考虑如何在新世代的 AHL 中实现相同电缆的供电。
Jan 1, 1970 -
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 -
Does AHL support 4K resolution?
No, the current generation of AHL products supports up to 720p @ 60fps, or 1080p @ 30fps. Non-standard wide format video resolutions are also supported.
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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