LMH6523SQ/NOPB

Overview

The LMH6523SQ/NOPB is a high-performance quad digital controlled variable gain amplifier (VGA) manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V and functions reliably across an extended temperature range from -40°C to +85°C. The component utilizes a WQFN-54 surface-mount package designed for compact circuit integration. As a specialized amplifier, it provides four independent channels with digital control capabilities for precise signal attenuation and amplification in demanding electronic applications.

Feature Summary

• Integrates four independent variable gain amplifier channels within a single compact package
• Features digital control interface for precise adjustment of signal gain levels
• Designed for high-performance signal processing requiring low distortion characteristics

Applications

• Digital television receiver front-end signal conditioning
• Cable modem intermediate frequency amplification stages
• Broadband communication system signal distribution networks

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm pinout compatibility and electrical specifications. Ensure that the ordering information matches the exact package type and thermal requirements for the intended application environment. Cross-reference the datasheet revision history to validate all technical parameters before finalizing procurement decisions.

Selection Notes

Select this component when multiple isolated VGA channels are required within a constrained board area. Evaluate the digital control interface compatibility with the system microcontroller or FPGA logic. Consider the thermal performance of the WQFN-54 package relative to the expected power dissipation in the target operating environment.

Part Context

This device belongs to the LMH6523 series of specialized amplifiers from Texas Instruments. It is engineered specifically for video and broadband signal processing applications where multi-channel gain control is essential. The part represents a solution for integrating complex signal path management into modern consumer electronics and telecommunications infrastructure equipment.

Replacement Considerations

Consult the official Texas Instruments product selection guide for verified alternative part numbers. Confirm functional equivalence regarding channel count, package dimensions, and control interface protocols before substituting.