ADV7189B is a multi-format SDTV video decoder produced by Analog Devices, supporting NTSC-(J, M, 4.43), PAL-(B/D/G/H/I/M/N) and SECAM formats.
The ADV7189B is a high‑quality, single‑chip multiformat video decoder that automatically detects and converts PAL, NTSC, and SECAM standards from composite, S‑Video, and component inputs into a digital ITU‑R BT.656 output. It is suited for DVD recorders, set‑top boxes, video projectors, and professional video systems.
Key features include three 12‑bit noise‑shaped video ADCs, a 12‑channel input MUX, adaptive‑digital‑line‑length‑tracking, 5‑line comb filters, macrovision detection, and extensive VBI data support. The datasheet provides full electrical, video, timing, and analog specifications, as well as register programming details and power‑management modes.
| ADC Resolution | 12 Bits |
|---|---|
| Differential Gain | 0.4% typ |
| Analog Input Voltage Range | 0.5 V to 1.6 V |
| Analog Power Supply Voltage | 3.15 V to 3.45 V |
| System Clock Frequency | 28.6363 MHz |
It supports NTSC‑(J, M, 4.43), PAL‑(B/D/G/H/I/M/N), and SECAM standards.
The analog input range is 0.5 V to 1.6 V.
The nominal system clock frequency is 28.6363 MHz.