LMH6522SQE/NOPB

Overview

The LMH6522SQE/NOPB is a high-performance quadrature digital variable gain amplifier (QD-VGA) from Texas Instruments, designed for RF applications up to 1.4 GHz. It operates on a single supply voltage ranging from 4.75 V to 5.25 V with a typical current draw of 465 mA. The device provides a gain range of 26 dB and features an input P1dB compression point of 17 dBm and an OIP3 of 49 dBm. It includes a noise figure of 8.5 dB and is housed in a 54-pin WQFN package, supporting operation between -40°C and +85°C.

Feature Summary

• Integrates four independent VGA channels with quadrature phase shifting capabilities for complex signal processing.
• Supports digital control interfaces for precise gain adjustment across the specified frequency range.
• Optimized for low noise and high linearity performance in radio frequency signal chains.

Applications

• RF front-end modules requiring quadrature signal generation
• Wireless communication base stations
• Test and measurement equipment

Procurement Notes

Verify the specific suffix 'SQE' against the manufacturer's latest datasheet to confirm pinout compatibility and functional specifications, as packaging or revision changes may affect integration. Ensure the design supports the required 54-pin WQFN footprint and thermal management needs. Confirm RoHS compliance status through official documentation before finalizing procurement plans.

Selection Notes

Select this component when quadrature signal handling is required within a single integrated circuit. Consider the 1.4 GHz operating limit and 26 dB gain range against system requirements. Evaluate the 465 mA power consumption relative to available thermal dissipation in the WQFN-54 package. Compare linearity metrics like OIP3 against other VGA options if dynamic range is critical.

Part Context

This part belongs to the LMH6522 series of high-speed video and RF amplifiers. It complements other Texas Instruments components like the LMH6522EVAL/NOPB evaluation module for development purposes. The series focuses on providing integrated solutions for signal conditioning in high-frequency applications, reducing the need for discrete phase shifters and multiple amplifiers.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's cross-reference tools for potential alternatives based on specific electrical parameter matching.