This document describes the features and functions of ADV7170/ADV7171 digital PAL/NTSC video encoders produced by Analog Devices. The encoder features high-quality 10-bit video DACs, SSAF (Super Sub-Alias Fi), and more.
The ADV7170/ADV7171 family are 10‑bit PAL/NTSC video encoders with programmable chroma filters, VBI, CGMS, and a wide range of output formats. The device integrates a video timing generator, sub‑carrier lock, and supports both 5 V and 3.3 V supply options.
The document provides detailed specifications, pin configurations, timing diagrams, absolute maximum ratings, ordering information, and application notes such as closed‑captioning and teletext insertion.
| Resolution (Each DAC) | 10 Bits |
|---|---|
| Input High Voltage (Vih) | 2 V |
| Input Low Voltage (Vil) | 0.8 V |
| Supply Voltage Range (5 V version) | 4.75 V – 5.25 V |
| Operating Temperature Range | 0 °C – +70 °C |
| Signal‑to‑Noise Ratio (Pedestal, RMS) | 80 dB |
Each DAC provides a 10‑bit resolution.
The 5 V version operates from 4.75 V to 5.25 V, while a low‑voltage version operates from 3.0 V to 3.6 V.
The device is rated for operation from 0 °C up to +70 °C.