Overview
Description
The ISL79987 and ISL79988 integrate four, high-quality NTSC/PAL/SECAM video decoders that convert analog composite video signals to digital component YCbCr data for automotive applications. Each channel contains a 10-bit ADC that supports single-ended, differential, and pseudo differential composite video inputs. The ISL79987 and ISL79988 use a 4H-comb filter for separating luminance and chrominance to reduce cross noise artifacts, and proprietary clamp and gain controllers. Integrated short-to-battery and short-to-ground detection, advanced image enhancement capabilities such as the programmable Automatic Contrast Adjustment (ACA), and the MIPI-CSI2/ITU-R BT. 656 output interface make the ISL79987 and ISL79988 an ideal solution for the demands of automotive around view applications.
Features
- Software-selectable analog input control allows for combinations of single-ended CVBS and differential CVBS
- Integrated, four-video analog anti-aliasing filters and 10-bit CMOS ADCs with differential and single-ended inputs
- Fully programmable static gain or automatic gain control for the Y-channel
- Programmable white peak control for the Y-channel
- 4-H adaptive comb filter Y/C separation
- PAL delay line for color phase error correction
- Digital subcarrier PLL for accurate color decoding
- Digital horizontal PLL for synchronization processing and pixel sampling
- Advanced synchronization processing and sync detection for handling non-standard and weak signals
- Automatic color control and color killer
- Chroma IF compensation
- Programmable output cropping
Video Processing
- Automatic Contrast Adjustment (ACA)
- Programmable hue, brightness, saturation, contrast, and sharpness
- Image enhancement with peaking and CTI
MIPI Output
- MIPI CSI-2 version 1.1 compliant unidirectional output
- Standard virtual identification channel support
- Non-standard pseudo virtual channel support
- One or two data lanes
- YUV422 or RGB565 output format
Digital Output
- Supports standard ITU-R BT.656 format or time multiplexed output with 27/54/108MHz
- Output voltage 1.8V to 3.3V
Miscellaneous
- Low power consumption
- Power save and power-down mode
- Short-to-battery detection
- Short-to-ground detection
- Two wire MPU serial bus interface
- Supports real time control interface
- Single 27MHz crystal for all operations
- 1.2V/3.3V power supply
- 48 Ld QFN package
- ISL79987ARZ and ISL79988ARZ are AEC-Q100 qualified
Comparison
Applications
Documentation
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| Type | Title | Date |
| Datasheet | PDF 3.33 MB | |
| Datasheet - Short-Form | PDF 205 KB | |
2 items
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Design & Development
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.
Support
Support Communities
Support Communities
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ISL79988 Does not Send 4 channel BT.656 Video Data Properly, Request for Register Configuration for ISL79988 in BT.656 Output Mode
We are currently using the ISL79988 device for 4-channel CVBS video input and aim to operate it with a BT.656 data output format. However, we are facing difficulties in configuring the device correctly due to insufficient information regarding the register settings. We would greatly appreciate it if you ...
May 22, 2025 -
Video Decoder Suggestion For 4 Analog Cameras
Hello, we will be using 4 analog NTSC cameras and we want a decoder which can split the screen into 1,2 or 4 by choice. Decoder output will be passed to an application process (linux) and application will be surround view so can anyone suggests a decoder that can ...
Sep 26, 2022