A64

Overview

The A64 is a discrete hybrid RF amplifier from MACOM Technology Solutions, designed for broadband applications spanning 10 MHz to 1200 MHz. Utilizing thin film manufacturing processes and a two-stage bipolar transistor feedback design, it delivers typical gain of 26 dB with low noise figure of 3.0 dB. The device features an active DC biasing network for temperature stability and ultra-low phase deviation from linearity under ±2° between 100-1000 MHz. It offers low VSWR of 1.2:1 and is available in hermetically sealed TO-8 or surface mount packages.

Feature Summary

• Cascadable two-stage bipolar transistor feedback architecture
• Active DC biasing network ensuring temperature-stable performance
• Hermetically sealed construction in TO-8 and surface mount options

Applications

• Broadband RF signal amplification
• GPS receiver front-end stages
• Military communication systems requiring MIL-STD-883 screening

Procurement Notes

Verify package configuration requirements, as the A64 is available in both hermetically sealed TO-8 and surface mount variants. Confirm if MIL-STD-883 environmental screening is necessary for the specific application, as this may affect part availability and selection criteria. Ensure compatibility with existing biasing networks due to the active DC biasing design.

Selection Notes

Select the A64 when broadband operation up to 1200 MHz is required alongside high reliability. The choice between TO-8 and surface mount packages depends on thermal management and board space constraints. Consider the need for MIL-STD-883 screening for aerospace or defense environments. Verify that the 26 dB gain and 3.0 dB noise figure meet system link budget requirements.

Part Context

The A64 belongs to MACOM's portfolio of discrete hybrid RF amplifiers, leveraging thin film technology for consistent performance. It complements other cascadable amplifiers in the series, providing a robust solution for high-frequency applications where linearity and stability are critical across wide bandwidths.

Replacement Considerations

Public confirmed substitute part numbers include A1211, A16-2, and A21-1, which share similar cascadable amplifier specifications and frequency ranges. Verify pinout and electrical parameter compatibility before substitution.