This document introduces the features and characteristics of the ADV7170/ADV7171 digital PAL/NTSC video encoder, including YUV to RBG matrix, video timing generator, SIN/COS DDS block, etc. The product features high-quality 10-bit video DACs, SSAF technology, and advanced power management.
The ADV7170/ADV7171 is an integrated digital video encoder that converts CCIR‑601 4:2:2 component video data into standard analog television signals for PAL and NTSC formats. It features a 10‑bit Super Sub‑Alias Filter, advanced power‑management, and optional Macrovision, closed‑captioning, and teletext functions.
The device is supplied in 44‑lead PQFP/TQFP packages, operates from a single 3 V‑5 V supply, and is configured via a two‑wire I²C‑compatible serial port. Detailed pin functions, timing specifications, and absolute maximum ratings are provided for system integration.
| Resolution per DAC | 10 Bits |
|---|---|
| Supply Voltage (VAA) | 4.75 V – 5.25 V |
| Video SNR (pedestal) | 80 dB rms |
| Serial Port Clock Frequency | 0 – 400 kHz |
| Absolute Maximum VAA to GND | 7 V |
It supports PAL (B, D, G, H, I, M, N) and NTSC (with and without pedestal) standards.
A 27 MHz clock is required for standard operation; 24.54 MHz can be used for NTSC square‑pixel mode and 29.5 MHz for PAL square‑pixel mode.
The maximum voltage on any digital input pin is VAA + 0.5 V, and the supply voltage VAA may not exceed 7 V.