ADA-4789-TR1G

RF Amplifiers Overview

The ADA-4789-TR1G is a silicon bipolar darlington RF amplifier IC manufactured by Broadcom Limited. It operates within a frequency range of DC to 2.5 GHz, suitable for wireless local loop and WLAN applications. The device provides a typical gain of 16.2 dB with a P1dB output power of 16.2 dBm and a noise figure of 4.4 dB. It requires a supply voltage between 3.3 V and 4.3 V. The component is housed in an SOT-89 surface-mount package.

RF Amplifiers Feature Summary

• Utilizes silicon bipolar darlington technology for robust signal amplification
• Designed specifically for wireless local loop and WLAN system integration
• Operates effectively across a wide bandwidth from DC to 2.5 GHz

RF Amplifiers Applications

• Wireless Local Loop (WLL) systems
• Wireless Local Area Network (WLAN) infrastructure
• RF signal chain amplification modules

RF Amplifiers Procurement Notes

This component has reached End-of-Life status as confirmed by the Product Change Notification dated January 19, 2016. Availability is restricted to existing stock or obsolete channels. Verify obsolescence status directly with the manufacturer before design commitment. No new production units are available through standard distribution networks.

RF Amplifiers Selection Notes

Select this part only if legacy compatibility with WLL or specific WLAN architectures is required. The DC-to-2.5 GHz range supports baseband upconversion needs. Consider the EOL status when planning long-term production runs. Evaluate alternative modern RF amplifiers that offer improved noise figures and higher linearity metrics for new designs.

RF Amplifiers Part Context

The ADA-4789-TR1G belongs to Broadcom's portfolio of silicon bipolar darlington amplifiers. It serves as a specialized solution for mid-band RF applications requiring moderate gain and power handling. The SOT-89 packaging facilitates compact board layouts for consumer and industrial wireless devices.

RF Amplifiers Replacement Considerations

No public confirmed substitute part numbers are documented. Due to the End-of-Life status, direct replacements must be sourced through secondary market channels or require circuit redesign using contemporary Broadcom or third-party RF amplifier solutions.