MAX7443ETA

Overview

The MAX7443ETA is a triple-channel active low-pass filter IC designed for video signal reconstruction. It operates on a single 5V supply (4.75V to 5.25V). The device features three independent filters with a cutoff frequency of 27MHz and a second-order response. Packaged in an 8-WDFN (3x3mm) surface-mount package, it supports NTSC and PAL standards.

Feature Summary

• Triple-channel architecture supporting simultaneous CVBS and Y/C (S-Video) processing
• Second-order low-pass filter response with maximum flat-frequency characteristics
• Integrated buffer output stage for signal driving capability

Applications

• Anti-aliasing filtering for S-video signals
• CVBS video signal reconstruction
• NTSC and PAL video standard compliance circuits

Procurement Notes

Verify the specific suffix (e.g., +T) against the required reel quantity and lead-free status. Confirm the manufacturer source, as Analog Devices acquired Maxim Integrated. Ensure the 8-WDFN package matches the PCB footprint requirements before finalizing the order.

Selection Notes

Select this component when a compact, triple-channel solution is required for composite or S-video paths. The 27MHz cutoff is suitable for standard definition video bandwidths. Verify that the 5V supply voltage aligns with the system power rails and that the WDFN package is compatible with the assembly process.

Part Context

This part belongs to the MAX7443/MAX7444 family of video reconstruction filters. These devices are engineered specifically for consumer electronics requiring high-quality video signal integrity. The series provides a cost-effective alternative to discrete filter components while maintaining precise frequency response specifications.

Replacement Considerations

The MAX7444 is a related variant within the same family. Verify pin compatibility and specific filter channel configurations before substitution. Cross-reference the exact package marking and electrical tolerances to ensure functional equivalence in the target application.