MGA-71543-TR2G

RF Amplifiers Overview

The MGA-71543-TR2G is a GaAs MMIC low-noise amplifier designed for wideband applications. It operates within a frequency range of 100 MHz to 6 GHz, providing a typical gain of 15.4 dB and a noise figure of 1.5 dB. The device functions on a supply voltage between 2.7 V and 4.2 V, drawing approximately 70 mA of current. Key performance metrics include an OIP3 of 38.7 dBm, input return loss of 12.7 dB, and isolation of 23.4 dB. It is housed in a compact SOT-343 (SC-70) 4-lead surface-mount package with a maximum power dissipation of 400 mW.

RF Amplifiers Feature Summary

• Integrated GaAs MMIC technology for high-performance RF amplification
• Wide operational bandwidth covering 100 MHz to 6 GHz
• Low noise figure suitable for sensitive receiver front-ends
• Compact SOT-343 surface-mount packaging

RF Amplifiers Applications

• CDMA wireless communication systems
• TDMA mobile phone architectures
• PCS (Personal Communications Service) devices
• General-purpose RF signal amplification

RF Amplifiers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to the presence of obsolete status and potential counterfeit risks. Confirm RoHS compliance details via official documentation. Check for specific ordering suffixes that may indicate tape-and-reel quantities or lead-free variations. Ensure the supplier provides valid traceability records for quality assurance purposes.

RF Amplifiers Selection Notes

Select this component for designs requiring wideband amplification with low noise characteristics in space-constrained environments. The SOT-343 package is ideal for portable consumer electronics. Evaluate thermal management requirements given the 400 mW power dissipation limit. Ensure the system supply voltage remains within the 2.7 V to 4.2 V operating range for optimal gain and linearity performance.

RF Amplifiers Part Context

This part belongs to Broadcom's MGA series of monolithic microwave integrated circuits. These components are engineered for wireless infrastructure and mobile handsets. The MGA-71543 specifically targets general-purpose amplification needs across multiple cellular standards. Its design emphasizes size reduction without compromising RF performance metrics.

RF Amplifiers Replacement Considerations

Public confirmed substitute part numbers: MGA-71543-BLKG.