ADA-4643-BLKG

RF Amplifiers Overview

The ADA-4643-BLKG is a single-channel bipolar RF amplifier manufactured by Broadcom Limited. It operates at a maximum frequency of 2.5 GHz with a typical power gain of 17.5 dB and a typical noise figure of 4 dB. The device delivers a typical output power of 14.7 dBm. It functions within a supply voltage range of 3.2 V to 3.9 V. The component is housed in a compact SOT-343 surface-mount package measuring 2.25 x 1.35 x 1 mm. It supports an operating temperature range up to +150 °C.

RF Amplifiers Feature Summary

• Utilizes bipolar technology for RF signal amplification
• Provides high power gain suitable for wireless applications
• Designed for low-noise performance in receiver chains

RF Amplifiers Applications

• Wireless communication systems
• RF signal processing circuits
• ISM band applications

RF Amplifiers Procurement Notes

This component is currently listed as obsolete or end-of-life by the manufacturer. Availability is restricted, and sourcing may require checking secondary distributors or alternative stock sources. Verify RoHS compliance status through official documentation before integration into new designs.

RF Amplifiers Selection Notes

Select this part for designs requiring a 2.5 GHz bipolar amplifier with 17.5 dB gain. Ensure the circuit supports the 3.2 V to 3.9 V supply range. The SOT-343 package requires appropriate surface-mount layout considerations. Confirm thermal management capabilities for the +150 °C maximum junction temperature requirement.

RF Amplifiers Part Context

The ADA-4643 belongs to Broadcom's portfolio of radio frequency discrete components. It is categorized under bipolar amplifiers designed for general-purpose RF applications. The device integrates a single amplifier channel optimized for specific impedance matching and noise characteristics typical of broadband wireless standards.

RF Amplifiers Replacement Considerations

As the product is obsolete, verify if newer generations from Broadcom offer equivalent specifications. Cross-reference datasheets for compatible pin-outs and electrical parameters when identifying substitute components.