ADV7183BBSTZ

Overview

The ADV7183BBSTZ is a multiformat SDTV video decoder that automatically detects and converts NTSC, PAL, and SECAM analog baseband signals into digital ITU-R BT.656 YCrCb 4:2:2 data. It integrates three 10-bit ADCs clocked by a single 27 MHz crystal, supporting line-locked clock-compatible (LLC) output. The device features a 5-line adaptive comb filter, integrated AGC, and Macrovision detection. It accepts composite, S-Video, and component inputs via 12 analog channels with a signal range of 0.5 V to 1.6 V. Power supplies include 3.3 V analog/I/O and 1.8 V digital core. It operates within temperature grades of 0°C to +70°C or –40°C to +85°C.

Feature Summary

• Integrates three 10-bit ADCs for high-resolution digitization of analog video signals.
• Features a 5-line superadaptive 2D comb filter for superior chrominance and luminance separation.
• Includes proprietary architecture for locking to weak, noisy, and unstable video sources such as VCRs and tuners.
• Supports automatic identification of NTSC, PAL, and SECAM standards with programmable video controls.

Applications

• DVD recorders
• Video projectors
• HDD-based PVRs/DVDRs
• LCD TVs
• Set-top boxes

Procurement Notes

Verify the specific suffix 'BBSTZ' against the manufacturer's current ordering guide to confirm package type, temperature grade, and lead-free status. Ensure the required operating temperature range matches the selected grade. Confirm I2C address configuration requirements based on the ALSB pin state in the target design.

Selection Notes

Select this component when a multiformat SDTV decoder with integrated ADCs and line-locked clock output is required. Consider the 80-lead LQFP package size and power supply requirements (3.3 V analog, 1.8 V digital core). Evaluate thermal resistance specifications if operating in enclosed environments without forced airflow.

Part Context

The ADV7183B belongs to Analog Devices' family of standard definition video decoders. It is designed for applications requiring robust decoding of legacy analog video formats. The device replaces older discrete solutions by integrating ADCs, comb filters, and sync processing into a single monolithic CMOS chip.

Replacement Considerations

Check the manufacturer's official replacement list for updated part numbers. Verify compatibility of pinouts and register maps if substituting with other ADV718x series variants.

FAQ

What is the nominal frequency for the crystal oscillator?

The nominal frequency for the crystal oscillator is 28.6363 MHz, though it can also be driven by an external 27 MHz clock source.

How does the device handle input video signal ranges?

The device supports an analog signal input range of 0.5 V to 1.6 V peak-to-peak, utilizing integrated AGC and clamp circuits to restore signals within this range.

What protection features are included for copy protection?

The ADV7183B includes Macrovision copy protection detection circuitry capable of identifying Type I, II, and III protection levels.