ADV7305AKST

Overview

The ADV7305AKST is a multiformat SD, progressive scan, and HDTV video encoder manufactured by Analog Devices Inc. It integrates six NSV™ 14-bit digital-to-analog converters (DACs) on a single monolithic chip. The device supports simultaneous standard definition and high definition inputs and outputs with oversampling capabilities at 108 MHz or 148.5 MHz. It accepts parallel input data formats including CCIR-656, CCIR-601, and RGB 4:4:4. The component operates on dual I/O supplies of 2.5 V and 3.3 V, features an onboard voltage reference and PLL, and utilizes a 2-Wire serial MPU interface for control. It is housed in a 64-pin LQFP package.

Feature Summary

• Integrates six NSV precision video DACs for high-quality analog output
• Supports simultaneous processing of standard definition and high definition video streams
• Includes fully programmable YCrCb to RGB matrix and gamma correction
• Features internal test pattern generators and adaptive filter controls

Applications

• High-end DVD players
• SD/Program Scan/HDTV display devices
• SD/Program Scan/HDTV set-top boxes
• SD/HDTV studio equipment
• Professional video equipment

Procurement Notes

Verify the specific ordering suffix AKST corresponds to the Plastic Quad Flatpack ST-64B package option when sourcing components. Confirm that the device meets lead-free manufacturing requirements and withstands surface-mount soldering temperatures up to 255°C. Ensure proper electrostatic discharge precautions are implemented during handling due to device sensitivity.

Selection Notes

Select the ADV7305AKST for applications requiring multiformat video encoding with integrated 14-bit DACs. This model is suitable for designs needing simultaneous SD and HD support with programmable color matrices. Verify compatibility with 2.5 V and 3.3 V power supply rails and ensure the system architecture supports the required 2-Wire serial interface configuration.

Part Context

The ADV7305AKST belongs to the ADV7304A/ADV7305A family of multiformat video encoders from Analog Devices. These devices are designed for high-speed digital-to-analog conversion in professional and consumer video applications. The family shares core functionalities such as NSV technology and multiformat support, differing primarily in specific feature sets like Macrovision implementation.

Replacement Considerations

The ADV7304AKST is a related part within the same family. Note that the ADV7304A includes Macrovision Rev 1.0 and CGMS-A features which may not be present in the ADV7305A. Verify functional equivalence regarding copy protection standards before substitution.