MAX7444ETA

Overview

The MAX7444ETA is a triple-channel video reconstruction filter and buffer designed for composite and Y/C outputs. It operates on a single 5V supply (4.75V to 5.25V) and features a second-order low-pass filter response with a cutoff frequency of 27MHz. The device provides three independent channels, each offering high-frequency performance suitable for NTSC, PAL, and interlaced SDTV signals. It utilizes an 8-WDFN exposed pad surface-mount package.

Feature Summary

• Triple-channel architecture supporting CVBS and Y/C signal processing
• Second-order low-pass filter response optimized for video reconstruction
• Integrated buffer capability for composite and S-Video outputs

Applications

• NTSC and PAL video signal processing
• Interlaced standard definition television systems
• Composite video output buffering

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm exact ordering variations. Ensure the component matches the required 8-WDFN package configuration. Cross-reference the datasheet revision history for any updates to electrical characteristics or pin assignments before integration into final designs.

Selection Notes

Select this component when designing circuits requiring simultaneous filtering and buffering for multiple video channels. It is appropriate for applications needing precise stopband attenuation and minimal distortion in standard definition video paths. Consider the thermal properties of the exposed pad package for effective heat dissipation in compact layouts.

Part Context

This part belongs to the Maxim Integrated line of active filters, specifically engineered for video interface applications. It addresses the need for clean signal reconstruction in consumer electronics and broadcast equipment where maintaining signal integrity across composite and component outputs is critical for display quality.

Replacement Considerations

Consult official substitution lists for direct replacements. Verify compatibility regarding pinout, package dimensions, and electrical specifications such as supply voltage range and channel count before swapping components in existing designs.