ADA-4543-TR1G

RF Amplifiers Overview

The ADA-4543-TR1G is a silicon-based RF amplifier IC from Broadcom Limited, designed for general-purpose applications. It operates within a frequency range of 0 Hz to 2.5 GHz, with performance specifications typically measured at a test frequency of 900 MHz. The device provides a gain of 15.1 dB and maintains a noise figure of 3.7 dB. Key linearity metrics include a P1dB compression point of 1.9 dBm and an OIP3 of 15 dBm. Power requirements are met by a supply voltage between 3.1 V and 3.8 V, drawing a current ranging from 10 mA to 30 mA. The component is housed in a compact SOT-343 (SC-70) surface-mount package.

RF Amplifiers Feature Summary

• Utilizes silicon technology for robust RF amplification across wide bandwidths
• Optimized for low-noise signal processing in mobile and wireless communication systems
• Compact four-lead surface-mount packaging facilitates dense circuit board layouts

RF Amplifiers Applications

• Mobile phone front-end modules
• ISM band equipment
• PCS network infrastructure
• WLAN connectivity solutions
• WLL system implementations

RF Amplifiers Procurement Notes

Verify component authenticity through official Broadcom channels or authorized distributors due to the part's obsolete status. Confirm that replacement units meet original electrical specifications, particularly regarding gain and noise figure tolerances. Ensure handling procedures comply with MSL level 1 standards. Cross-reference datasheet revisions to validate compatibility with existing design parameters before finalizing procurement decisions.

RF Amplifiers Selection Notes

Engineers should evaluate the ADA-4543-TR1G for designs requiring moderate gain and specific linearity constraints within the sub-2.5 GHz spectrum. Consider the trade-off between the 1.9 dBm P1dB output and the 15.1 dB gain when designing matching networks. Verify power budget alignment with the 10-30 mA operating current range. Assess thermal dissipation capabilities relative to the SOT-343 package size for the intended application environment.

RF Amplifiers Part Context

This component belongs to the ADA series of radio frequency amplifiers manufactured by Broadcom Limited. It represents a silicon-based solution distinct from GaAs alternatives like the MGA-52543, offering a balance of performance and cost-effectiveness for consumer electronics. The product has reached end-of-life status, necessitating careful lifecycle management for ongoing production support.

RF Amplifiers Replacement Considerations

Infineon Technologies BGA420H6327XTSA1 is documented as a similar substitute option.