Overview
The ADV7181BCP, produced by Analog Devices Inc., is a high-quality, single-chip, multiformat video decoder and graphics digitizer. This integrated video decoder automatically detects and converts standard analog baseband television signals compatible with worldwide standards such as NTSC, PAL, and SECAM into digital 4:2:2 component video data. The device is highly flexible and supports various video formats, including composite, S-Video, and component video signals. It also features advanced digital output interfaces, making it suitable for a broad range of applications with diverse analog video characteristics.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Digital I/O Power Supply | DVDDIO | 3.0 | 3.3 | 3.6 | V |
| PLL Power Supply | PVDD | 1.65 | 1.8 | 2.0 | V |
| Analog Power Supply | AVDD | 3.15 | 3.3 | 3.45 | V |
| Digital Core Supply Current | IDVDD | 80 | mA | ||
| Digital I/O Supply Current | IDVDDIO | 2 | mA | ||
| PLL Supply Current | IPVDD | 10.5 | mA | ||
| Analog Supply Current (CVBS input) | IAVDD | 85 | mA | ||
| Analog Supply Current (YPrPb input) | IAVDD | 180 | mA | ||
| Power-Down Current | IPWRDN | 1.5 | mA | ||
| Power-Up Time | tPWRUP | 20 | ms | ||
| Operating Temperature Range | -40 | 85 | °C | ||
| Package Type | 64-lead LQFP |
Key Features
- Automatic detection and conversion of NTSC, PAL, and SECAM analog baseband television signals into digital 4:2:2 component video data.
- Support for composite, S-Video, and component video signals.
- Advanced digital output interface compatible with ITU-R BT.656 format.
- Graphics digitization capability for RGB signals from VGA to XGA rates.
- SCART and overlay functionality with simultaneous processing of CVBS and standard definition RGB signals.
- Free run mode for generating stable video output without an input signal.
- VBI decode support for close captioning, WSS, CGMS, EDTV, and Gemstar®.
- 2-wire serial MPU interface (I2C®-compatible).
- Power-down mode and low power consumption.
- High-performance analog front end with 9-bit ADCs and differential channels.
Applications
- DVD recorders
- PC video and HDD-based PVRs/DVDRs
- LCD TVs
- Set-top boxes
- Security systems
- Digital televisions
- Portable video devices
- Automotive entertainment systems
- AVR receivers
Q & A
- What types of video signals does the ADV7181BCP support?
The ADV7181BCP supports NTSC, PAL, and SECAM analog baseband television signals, as well as composite, S-Video, and component video formats.
- What is the output format of the decoded video signal?
The decoded video signal is output in 4:2:2 component video data compatible with ITU-R BT.656 format.
- Does the ADV7181BCP support graphics digitization?
Yes, it supports graphics digitization for RGB signals from VGA to XGA rates.
- What is the operating temperature range of the ADV7181BCP?
The operating temperature range is from -40°C to +85°C.
- What is the package type of the ADV7181BCP?
The device is packaged in a 64-lead LQFP.
- Does the ADV7181BCP have power-saving features?
Yes, it has a power-down mode and low power consumption features.
- What is the purpose of the ADLLT technology in the ADV7181BCP?
ADI's ADLLT (Adaptive Digital Line Length Tracking) technology enables variable input video quality detection and synchronization, which is advantageous for digital video capture, processing, or display applications.
- Can the ADV7181BCP process multiple video signals simultaneously?
Yes, it includes a 6-channel input mux that enables multiple video signals to be applied to the device.
- What kind of analog front end does the ADV7181BCP have?
The device has a high-performance analog front end with 9-bit ADCs and differential channels.
- Does the ADV7181BCP support VBI decoding?
Yes, it supports VBI decoding for close captioning, WSS, CGMS, EDTV, and Gemstar®.
