This document is about the technical information of the Multiformat SDTV video decoder ADV7189. The decoder supports multiple formats of video decoding, including NTSC and PAL. It integrates three 12-bit ADCs and has features like noise shaped video and adaptive digital line length tracking. Additionally, it also supports automatic NTSC.
The ADV7189 from Analog Devices is a single‑chip multiformat video decoder that automatically detects and converts PAL, NTSC, and SECAM signals from composite, S‑Video, or component sources into digital ITU‑R BT.656 output. It features three 12‑bit noise‑shaped ADCs, adaptive‑digital‑line‑length tracking, and a 5‑line adaptive comb filter for high‑quality video conversion.
The document provides a functional block diagram, extensive electrical, video, timing, analog, and thermal specifications, as well as application notes, ordering information, and typical connection diagrams for designers integrating the device into DVD recorders, set‑top boxes, video projectors, and other video systems.
| Temperature range | -40°C to +85°C |
|---|---|
| ADC resolution | 12 Bits |
| Nominal system clock frequency | 27.00 MHz |
| Input high voltage (digital inputs) | 2 V |
| Power‑down current | 1.5 mA |
| Analog supply voltage | 3.15 V to 3.45 V |
It supports PAL, NTSC, and SECAM standards in composite, S‑Video, and component formats.
The analog supply voltage (AVDD) operates from 3.15 V to 3.45 V.