MAX7463USA+

Video Processing Overview

The MAX7463USA+ is a single-channel, standard-definition video reconstruction filter and buffer manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +5V supply and features a fixed output buffer gain of +6dB. The device provides a flat passband response out to 5MHz with a stopband attenuation of -43dB at 27MHz. It is capable of driving two standard 150Ω AC-coupled or DC-coupled video loads with a 2VP-P signal. The output black level for DC-coupled outputs is less than 1V. The component is specified over an operating temperature range of 0°C to +85°C.

Video Processing Feature Summary

• Integrates a fourth-order Butterworth-type lowpass filter optimized for NTSC, PAL, and SDTV bandwidths.
• Provides a fixed +6dB output buffer gain suitable for direct DAC smoothing applications.
• Capable of driving dual 150Ω video loads via AC or DC coupling without requiring large output capacitors.

Video Processing Applications

• Cable, satellite, and terrestrial set-top boxes
• Digital Video Recorders (DVRs)
• Hard-disk recorders

Video Processing Procurement Notes

Verify the specific ordering suffix '+', which indicates lead-free status and RoHS compliance, against the manufacturer's current documentation. Confirm the package type corresponds to the 8-pin SO format. Ensure the fixed +6dB gain configuration aligns with system requirements, as this variant lacks the selectable gain and disable functions found in the MAX7462 series.

Video Processing Selection Notes

Select the MAX7463USA+ when a fixed +6dB gain is required for standard-definition video reconstruction. This part is appropriate for applications where multiplexing is unnecessary, eliminating the need for the output disable feature present in the MAX7462. It serves as a direct replacement for systems designed around the fixed-gain variant of the MAX7462/MAX7463 family.

Video Processing Part Context

This component belongs to the MAX7462/MAX7463 family of single-channel video reconstruction filters and buffers. While the MAX7462 offers selectable gain (+6dB/+9.5dB) and an output disable function, the MAX7463 simplifies the design by providing a fixed +6dB gain. Both devices share identical filter characteristics and are intended for anti-aliasing and digital-to-analog smoothing in video applications.

Video Processing Replacement Considerations

The MAX7462USA+ is a functional substitute if the application can accommodate the additional gain selection and disable pin functionality. Verify that the fixed +6dB gain of the MAX7463 meets the system's voltage swing requirements compared to the selectable settings of the MAX7462.

Video Processing FAQ

Does the MAX7463USA+ support output multiplexing?

No, the MAX7463 does not include an output disable function. Multiplexing multiple output signals requires the MAX7462, which provides a high-impedance state capability.

What is the maximum frequency response of the filter?

The device features a flat passband response out to 5MHz. Stopband attenuation is specified at -43dB at 27MHz.