MAX7432AEUD

Overview

The MAX7432AEUD is a dual-channel video reconstruction filter and buffer manufactured by Analog Devices Inc./Maxim Integrated. It serves as a high-performance replacement for discrete filter solutions in standard definition digital TV applications. The device integrates two sixth-order lowpass filters optimized for NTSC, PAL, and SDTV signals. It operates on a single +5V supply and features the Maxim Single-Pin Bus (MSPB) interface for digital control of channel selection, high-frequency boost, bypass modes, and output disable functions. Packaged in a 14-pin TSSOP, it drives dual 150Ω video loads.

Feature Summary

• Integrates dual sixth-order lowpass filters for video signal reconstruction
• Supports digital configuration via Maxim Single-Pin Bus interface
• Provides selectable high-frequency boost levels for passband optimization
• Includes input multiplexing and configurable output disable capabilities

Applications

• Composite video (CVBS) signal processing in set-top boxes
• S-Video (Y/C) separation and filtering in DVD players
• Video reconstruction buffers for hard-disk recorders
• Analog video output stages in camcorders

Procurement Notes

Verify the specific suffix 'EUD' against the manufacturer's current datasheet to confirm pinout compatibility and package dimensions. Ensure the design supports the required +5V single-supply voltage and MSPB communication protocol. Confirm that the 14-pin TSSOP footprint matches the target PCB layout constraints.

Selection Notes

Select this component when dual-channel video filtering is required for standard definition formats like NTSC or PAL. It is suitable for designs needing integrated luma/chroma separation without discrete components. Consider the MSPB interface requirements for system control logic. Verify thermal performance within the specified operating temperature range for the target enclosure.

Part Context

The MAX7432AEUD belongs to the MAX7428/MAX7430/MAX7432A family of video reconstruction filters. While the MAX7428 handles single-channel composite signals and the MAX7430 addresses S-Video, the MAX7432A provides dual channels for more complex RGB or YPbPr applications. This family replaces traditional discrete RC networks with integrated active filtering solutions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.