ADV7195KSZ

Overview

The ADV7195KSZ is a multiformat progressive scan and HDTV encoder manufactured by Analog Devices Inc. It integrates three high-speed digital-to-analog converters (DACs) with TTL-compatible inputs on a single monolithic chip. The device accepts 10-bit YCrCb or RGB data in 4:2:2 or 4:4:4 formats, supporting standard resolutions including 525p, 625p, 1080i, and 720p. It operates with a single 3.3 V supply and features programmable sharpness filters, adaptive filter control, gamma correction, and an internal test pattern generator. The component is housed in a 52-lead MQFP package.

Feature Summary

• Supports multiformat input compliance for SMPTE-293M, ITU-R BT.1358, SMPTE274M, and SMPTE296M standards.
• Integrates three separate 10-bit-wide input ports accepting 4:4:4 YCrCb, RGB, or 4:2:2 YCrCb data.
• Includes programmable sharpness filter and adaptive filter control to enhance luminance signals and remove ringing.
• Features an internal test pattern generator with color control and CGMS-A data generation capabilities.

Applications

• Progressive Scan/HDTV Display Devices
• Progressive Scan/HDTV Projection Systems
• Digital Video Systems
• High Resolution Color Graphics

Procurement Notes

Verify the specific suffix KSZ against official documentation to confirm the temperature range and package option. Ensure that the ordering information matches the exact requirements for your application, as variations may exist within the product line. Cross-reference the manufacturer's latest datasheet for any updates on availability or specifications.

Selection Notes

Select the ADV7195KSZ when designing systems requiring multiformat video encoding with integrated DACs. Consider its support for both progressive scan and HDTV modes, along with programmable filtering options. Evaluate the need for internal test patterns and gamma correction features. Confirm compatibility with the required input data formats and clock frequencies for your specific video application.

Part Context

The ADV7195 is part of Analog Devices' video encoder family, designed for high-definition video processing. It serves as a bridge between digital video sources and analog display outputs. The device simplifies system design by integrating multiple functions typically requiring discrete components. Its robust feature set makes it suitable for professional video equipment and consumer electronics requiring high-quality video output.

Replacement Considerations

Consult the manufacturer's documentation for direct replacements or pin-compatible alternatives. Verify functional equivalence regarding input formats, output standards, and power requirements before substitution.

FAQ

What input data formats does the ADV7195 support?

The ADV7195 supports 10-bit YCrCb in 4:2:2 or 4:4:4 format, as well as RGB in 4:4:4 format.

How is the I2C interface noise reduction controlled?

Noise reduction on the I2C interface is controlled by the ALSB pin. Setting this pin high activates the I2C filter, reducing input bandwidth and rejecting pulses shorter than 50 ns.

Can the ADV7195 operate at different clock speeds?

Yes, the device can operate at 27 MHz for Progressive Scan Mode or 74.25 MHz/74.1758 MHz for HDTV Mode. It also supports 81 MHz in Async Timing Mode with 1x interpolation.