MAX7430EUB+

Overview

The MAX7430EUB+ is a dual-channel standard definition video reconstruction filter and buffer manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +5V supply and features a 6th-order lowpass Butterworth filter optimized for NTSC, PAL, and SDTV signals. The device includes an input multiplexer to select between IN_A or IN_B channels, four levels of programmable high-frequency boost, and selectable filter bypassing. Control is managed via the Maxim Single Pin Bus (MSPB) serial interface, allowing digital adjustment of channel selection, output disable, and clamp levels. It is housed in a 10-pin µMAX package and specified over an extended temperature range of -40°C to +85°C.

Feature Summary

• Dual-channel architecture optimized for S-Video (Y/C) applications with master-slave clamping control
• Integrated 6th-order lowpass Butterworth filter with autotrimming for consistent corner frequency
• Programmable high-frequency boost with four distinct levels to compensate for signal degradation
• Single-pin bus (MSPB) serial interface for comprehensive digital configuration and addressing

Applications

• S-Video (Y/C) signal processing in set-top boxes and DVD players
• Standard definition TV (SDTV) video reconstruction from digital data streams
• Composite video filtering in hard-disk recorders and camcorders

Procurement Notes

Verify the component authenticity by checking the manufacturer markings against the official datasheet specifications. Confirm the package type matches the 10-pin µMAX format and ensure the operating temperature range aligns with system requirements. Cross-reference the part number with authorized distributors to ensure compliance with RoHS standards and current product lifecycle status.

Selection Notes

Select the MAX7430EUB+ when dual-channel video processing is required, specifically for separating luminance and chrominance signals in S-Video applications. Ensure the design accommodates a single +5V power supply and utilizes the MSPB interface for control. Consider the MAX7428 for single-channel composite video or the MAX7432A for triple-channel component video if the application demands different channel counts.

Part Context

The MAX7430 belongs to the MAX7428/MAX7430/MAX7432A family of standard definition video reconstruction filters. While the MAX7428 provides a single channel for composite video and the MAX7432A offers three channels for component video, the MAX7430 is specifically designed for dual-channel Y/C separation. All devices share similar internal architectures, including the 6th-order filter and MSPB interface, differing primarily in channel count and package options.

Replacement Considerations

Direct functional replacements within the same family include the MAX7428EUB+ for single-channel applications and the MAX7432AEUD+ for triple-channel setups. Verify that any substitute maintains compatibility with the MSPB protocol and fits the required PCB footprint.