ADV7183AKST

Overview

The ADV7183AKST is a multiformat SDTV video decoder that automatically detects and converts NTSC, PAL, and SECAM analog baseband signals into digital ITU-R BT.656 format. It integrates three 10-bit ADCs clocked by a single 27 MHz crystal. The device supports line-locked clock-compatible (LLC) output with adaptive digital line length tracking. It features five-line adaptive comb filters, integrated AGC, and Macrovision detection. Power supplies include 3.3 V analog, 1.8 V digital core, and 3.3 V I/O. It operates within temperature grades of 0°C to 70°C or –40°C to +85°C.

Feature Summary

• Integrates three 54 MHz, 10-bit ADCs for high-quality digitization
• Supports automatic detection of NTSC, PAL, and SECAM standards
• Includes five-line superadaptive 2D comb filters for chrominance separation
• Features adaptive digital line-length tracking for unstable video sources

Applications

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

Procurement Notes

Verify the specific suffix 'KST' against official Analog Devices documentation to confirm the exact temperature grade and package variant. Ensure the ordering information matches the required operating temperature range and packaging specifications before procurement.

Selection Notes

Select this component for applications requiring robust decoding of diverse analog video sources including tape-based and broadcast inputs. Consider the 80-lead LQFP package constraints and verify power supply requirements for 3.3 V analog and 1.8 V digital domains during system design.

Part Context

The ADV7183A series serves as a comprehensive solution for standard definition video decoding. It bridges analog video inputs to digital processing systems using CCIR601/CCIR656 compatible interfaces. The device is designed for professional and consumer electronics requiring reliable multiformat support.

Replacement Considerations

Check for updated revisions such as Rev B datasheets. Verify pin compatibility if substituting with other ADV718x family members. Confirm thermal and electrical specifications match the original design requirements.

FAQ

What video standards does the ADV7183AKST support?

It supports NTSC (J, M, 4.43), PAL (B/D/G/H/I/M/N), and SECAM.

How is the device clocked?

It is clocked from a single 27 MHz crystal or an external 3.3 V, 27 MHz clock oscillator source.

What is the function of the ADLLT feature?

Adaptive Digital Line Length Tracking allows the decoder to track and decode poor quality video sources like VCRs with varying line lengths.