The ADV7189 is a multiformat SDTV video decoder from Analog Devices, which supports NTSC-(M,N,4.43), PAL-(B/D/G/H/I/M/N) and SECAM formats. The chip integrates three 54MHz, Noise Shaped Video®, 12-bit ADCs, and is driven by a single 27MHz crystal clock. It also uses Line-locked clock compatible (LLC), Adaptive-Digital-Line-Length-Tracking (ADLLT™) and 5-line adaptive comb filters to ensure locking on weak, noisy, unstable video sources (such as VCRs and tuners). In addition, the chip integrates AGC, Macrovision® copy protection detection, CTI and DNR, which can meet the needs of more application scenarios.
The ADV7189 video decoder automatically detects NTSC, PAL and SECAM standards and converts composite, S‑Video or component inputs to a digital ITU‑R BT.656 4:2:2 output. It features three 12‑bit noise‑shaped ADCs, adaptive line‑length tracking, chroma transient improvement and built‑in AGC.
The device is supplied in an 80‑lead low‑profile QFP package, operates from a 3.3 V core with a 27 MHz crystal, and includes a 2‑wire I²C‑compatible control interface. Detailed electrical, video, timing and thermal specifications are provided for system designers.
| Temperature range | -40 °C to +85 °C |
|---|---|
| Nominal system clock | 27.00 MHz |
| Analog power supply (AVDD) | 3.15 V to 3.45 V |
| Package type | 80‑lead LQFP (ST‑80‑2) |
| Digital core supply current | 82 mA |
It supports NTSC, PAL and SECAM standards in composite, S‑Video and component formats.
The decoder outputs ITU‑R BT.656 4:2:2 component video in 8‑bit, 10‑bit, 16‑bit or 20‑bit modes.
The power‑down current is 1.5 mA.
It is supplied in an 80‑lead low‑profile quad flat package (LQFP) ST‑80‑2.