AM3138

Overview

The AM3138 is an analog voltage-tunable notch filter bank MMIC manufactured by Mercury Systems, distributed by World Micro Inc. It operates within a frequency range of 1.3 to 3.25 GHz. The device provides a rejection level of 35 dB and features a bandwidth of 1950 MHz. It utilizes a QFN package with four pins. The center frequency is specified at 2.3 GHz with a tolerance of 20%. This component serves as a dual-band notch filter solution for RF applications requiring tunable filtering capabilities.

Feature Summary

• Analog voltage-tunable notch filter functionality
• Dual-band operation covering 1.3 to 3.25 GHz
• Monolithic Microwave Integrated Circuit (MMIC) design

Applications

• RF signal processing systems
• Communication equipment requiring notch filtering
• Test and measurement instrumentation

Procurement Notes

Verify the manufacturer designation carefully, as Mercury Systems is the original producer while World Micro Inc acts as a distributor. Confirm the specific datasheet version and ordering suffixes to ensure compatibility with your system requirements. Cross-reference part numbers to distinguish between similar models like the AM3139. Ensure sourcing channels provide authentic components with proper traceability documentation.

Selection Notes

Select this component when a tunable notch filter in the 1.3 to 3.25 GHz range is required. Consider the 35 dB rejection specification against system interference needs. Evaluate the QFN package constraints for PCB layout. Compare performance metrics with alternative filters if wider bandwidth or different frequency ranges are necessary. Verify voltage tuning requirements align with control circuitry.

Part Context

The AM3138 belongs to the family of analog tunable MMIC filters from Mercury Systems. It complements other models such as the AM3137 and AM3139, which cover different frequency bands. These devices are designed for integration into compact RF front-ends. The product line emphasizes tunable filtering solutions for modern communication architectures.

Replacement Considerations

The AM3139 is a related model covering 2.5 to 6.0 GHz. Direct substitution requires verifying frequency band compatibility. No other direct substitutes are confirmed in public documentation. Consult manufacturer guidelines for pin-compatible alternatives if frequency ranges differ.