ADV7181 Rev. B is a multiformat SDTV video decoder produced by Analog Devices, which supports NTSC-(J, M, 4.43), PAL-(B/D/G/H/I/M/N), SECAM formats, integrates three 54 MHz, 9-bit ADCs, clocked from a single 27 MHz crystal, has line-locked clock-compatible (LLC), adaptive digital line length tracking (ADLLT™) and other features.
The ADV7181 is a high-quality, single-chip multiformat video decoder that automatically detects and converts standard analog baseband television signals compatible with worldwide standards (NTSC, PAL, and SECAM) into 4:2:2 component video data. It integrates three 54 MHz, 9-bit ADCs and supports multiple analog input formats including CVBS, S-Video, and YPrPb component signals.
The device features advanced digital processing capabilities such as adaptive digital line length tracking (ADLLT), 5-line adaptive comb filters, and chroma transient improvement (CTI). It is designed for applications involving weak or noisy video sources like VCRs and tuners, offering digital output formats such as ITU-R BT.656 and YCrCb 4:2:2.
| Resolution (Each ADC) | 9 Bits |
|---|---|
| Analog Power Supply Voltage | 3.15 V to 3.45 V |
| Digital Core Supply Voltage | 1.65 V to 2.0 V |
| Digital I/O Supply Voltage | 3.0 V to 3.6 V |
| Operating Temperature Range | -40°C to +85°C |
| Supported Video Standards | NTSC, PAL, SECAM |
| Analog Input Channels | 6 |
| Package Type | 64-lead LQFP |
The ADV7181 automatically detects and converts PAL, NTSC, and SECAM standards in composite, S-Video, and component video formats.
The device accepts an analog signal input range of 0.5 V to 1.6 V peak-to-peak.
Yes, the decoder is fully Macrovision certified and can identify Type I, II, and III protection levels.
The device modes are set up over a 2-wire, serial, bidirectional port that is I2C-compatible.