QPB9350SR

RF Front End (LNA + PA) Overview

The QPB9350SR is a dual-channel receiver digital variable gain amplifier (DVGA) from Qorvo, designed for RF front-end applications. It operates within a frequency range of 400 MHz to 1 GHz. The device features a low noise figure of 0.4 dB and provides a total gain of 44.5 dB. Key performance metrics include an output third-order intercept point (OIP3) of 38.5 dBm and a 1-dB compression point (P1dB) of 21.5 dBm. It functions at a supply voltage of 5 V with a current consumption of 310 mA. The component is supplied in a reel package.

RF Front End (LNA + PA) Feature Summary

• Dual-channel architecture supporting independent signal processing paths
• Digital control interface for precise gain adjustment
• High linearity performance suitable for sensitive receiver stages

RF Front End (LNA + PA) Applications

• RF front-end modules for macro base stations
• Wireless infrastructure receiver systems
• High-performance communication equipment requiring low noise amplification

RF Front End (LNA + PA) Procurement Notes

Verify the specific suffix SR against official Qorvo documentation to confirm packaging and tape specifications. Ensure compatibility with existing board layouts regarding pin assignments and thermal requirements. Cross-reference the operating frequency range with system design constraints to validate performance at target frequencies. Confirm power supply stability meets the 5 V requirement for optimal noise figure and gain characteristics.

RF Front End (LNA + PA) Selection Notes

Select this component when designing receivers operating between 400 MHz and 1 GHz that require high linearity and low noise. The dual-channel configuration allows for balanced signal processing in diversity or MIMO systems. Consider the 310 mA current draw for power budget calculations. The digital control interface simplifies integration with baseband processors compared to analog VGA alternatives.

RF Front End (LNA + PA) Part Context

The QPB9350SR belongs to the QPB9350 series of RF front-end integrated circuits. This series targets high-performance wireless infrastructure markets. The component integrates LNA and VGA functions into a single SiP solution. It utilizes Qorvo's E-pHEMT technology for superior noise performance. The design supports advanced modulation schemes common in modern cellular standards.

RF Front End (LNA + PA) Replacement Considerations

QPB9350TR13 is a documented variant within the same series offering different packaging options.