MAX7428EKA+T

Video Processing Overview

The MAX7428EKA+T is a single-channel video reconstruction filter and buffer manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +5V supply and features a sixth-order lowpass filter optimized for NTSC, PAL, and standard definition digital TV (SDTV) video signals. The device includes an input 2-to-1 multiplexer and supports driving two 150Ω video loads. Control functions such as channel selection, high-frequency boost adjustment, filter bypassing, and output disable are managed via the Maxim Single-Pin Bus (MSPB) interface. It is housed in an 8-pin SOT23 package.

Video Processing Feature Summary

• Integrates a sixth-order lowpass filter with optimized cutoff frequencies for standard definition video formats
• Utilizes the Maxim Single-Pin Bus interface for digital control of channel selection, boost levels, and operational modes
• Includes an integrated 2-to-1 input multiplexer for flexible signal routing
• Capable of driving dual 150Ω video loads directly

Video Processing Applications

• Composite video (CVBS) signal reconstruction
• Anti-aliasing filters in digital-to-analog conversion stages
• DAC smoothing buffers for SDTV video outputs
• Set-top boxes and DVD players requiring video signal conditioning

Video Processing Procurement Notes

Verify the specific suffix EKA+T against official Analog Devices documentation to confirm the package type and lead-free status. Ensure compatibility with the MSPB control protocol in your system design. Confirm that the single +5V supply requirement aligns with your power architecture before procurement.

Video Processing Selection Notes

Select this component when a compact solution is required for composite video filtering and buffering. It is suitable for applications needing digital control over filter characteristics without complex external circuitry. Consider the 8-pin SOT23 package constraints for PCB layout. Verify that the single-channel architecture meets the signal path requirements of your specific video application.

Video Processing Part Context

This part belongs to the MAX7428/MAX7430/MAX7432A family of video reconstruction filters. While the MAX7430 offers dual channels for S-Video and the MAX7432A provides four channels for RGB, the MAX7428 is specifically designed for single-channel composite video applications. All members share similar performance characteristics and the MSPB interface.

Video Processing Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.