ADV7171KSU

Overview

The ADV7171KSU is a digital PAL/NTSC video encoder manufactured by Analog Devices Inc. It converts digital CCIR-601 4:2:2 YCrCb data into analog baseband signals. The device features four 10-bit DACs and operates on a single 3.3 V or 5 V supply. It supports NTSC M, PAL B/D/G/H/I/N, and PAL60 standards with an 80 dB video SNR. Input formats include 8-bit and 16-bit parallel data via a 27 MHz clock. Configuration is managed through a 2-wire I²C-compatible serial interface.

Feature Summary

• Integrates Super Sub-Alias Filter (SSAF) for high luminance frequency response
• Supports simultaneous composite, S-Video, YUV, and RGB EuroSCART outputs
• Includes programmable luma and chroma filters with multiple standard options
• Features advanced power management with normal, low power, and sleep modes

Applications

• High performance DVD playback systems
• Portable video equipment including digital still cameras
• Digital satellite and cable set-top boxes
• PC video and multimedia applications

Procurement Notes

Verify the specific ordering suffix KSU against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure the design accounts for the required 27 MHz reference clock and appropriate RSET resistor values for the target output drive configuration.

Selection Notes

Select this component when converting digital component video to analog TV signals is required. Verify compatibility with the system's input data format and check if the integrated DACs meet the necessary resolution and noise specifications for the target display environment.

Part Context

This part belongs to the ADV7170/ADV7171 family of integrated digital video encoders. It shares functional similarities with the ADV7173 but differs in its specific encoding architecture and supported output signal types. The device is designed for direct integration into consumer electronics requiring analog video generation.

Replacement Considerations

The ADV7170 is the primary variant within the same family. Verify register compatibility and pin mapping before substitution. No other public substitute part numbers are confirmed in the provided documentation.

FAQ

What is the maximum operating temperature for the ADV7171KSU?

The industrial temperature grade for the ADV7171KSU ranges from -40°C to +85°C.

How is the full-scale amplitude of the video signals controlled?

A 150 Ω resistor connected from the RSET pin to ground is used to control the full-scale amplitudes of the video signals.

Does the device support teletext insertion?

Yes, the ADV7171 includes a teletext insertion port compatible with PAL-WST standards.