ADV7321KSTZ

Overview

The ADV7321KSTZ is a multiformat video encoder featuring six 12-bit NSV DACs and a 216 MHz oversampling architecture. It supports simultaneous standard definition (SD) and high definition (HD) or progressive scan (PS) inputs and outputs. The device accepts parallel YCrCb, RGB, and CCIR-656 digital video formats via separate input ports. It operates on dual supplies of 2.5 V for analog/digital cores and 2.5 V to 3.6 V for I/O. Key specifications include a maximum clock frequency of 81 MHz in async mode, an operating temperature range of 0°C to 70°C, and a 64-lead LQFP package.

Feature Summary

• Supports HD, ED, and SD input/output formats including SMPTE and ITU-R standards
• Integrates six 12-bit noise-shaped video DACs with programmable gain control
• Includes internal test pattern generators and color control blocks
• Features a 2-wire serial I2C interface for register configuration

Applications

• EVD players
• High-end SD/PS DVD recorders and players
• SD/HDTV set-top boxes
• Professional video systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and environmental compliance. Ensure that the required external components, such as the 3040 Ω RSET resistor and compensation capacitors, are included in the design. Confirm availability status directly with authorized distributors as supply conditions may vary.

Selection Notes

Select this component when simultaneous SD and HD encoding is required within a single integrated circuit. Verify that the system timing generator can provide the necessary HSYNC, VSYNC, and BLANK signals. Ensure the host processor supports the 2-wire serial interface for programming the extensive feature set and filter controls.

Part Context

This part belongs to the ADV7320/ADV7321 family of high-speed digital-to-analog encoders manufactured by Analog Devices Inc. The series is designed for professional and consumer video applications requiring high-quality conversion from digital video data to analog composite, S-video, or component signals.

Replacement Considerations

The ADV7320 is the primary variant within the same datasheet, differing primarily in the inclusion of Macrovision Rev 1.2 and Rev 7.1.L1 copy protection features.