FMAM4000

Attenuators Overview

The FMAM4000 is a programmable step attenuator manufactured by Fairview Microwave, designed for RF applications up to 13 GHz. It features SMA female-to-female connectors and provides an attenuation range of 0 dB to 31.5 dB with a resolution of 0.5 dB per step. The device is TTL controlled and rated for a maximum power handling of 22 dBm (0.16 Watts). Constructed with RoHS compliance, it utilizes a 6-bit control scheme to achieve precise signal attenuation levels within its specified frequency band.

Attenuators Feature Summary

• Programmable attenuation control via TTL interface
• Fine 0.5 dB resolution steps across the range
• SMA female connector interface on both ports

Attenuators Applications

• RF signal level adjustment in test and measurement setups
• Calibration of RF measurement equipment
• Signal conditioning in wireless communication systems

Attenuators Procurement Notes

Verify the specific datasheet version from Fairview Microwave or authorized distributors to confirm current RoHS status and ECCN classification. Ensure that the TTL control voltage levels match your system logic requirements before integration. Confirm the maximum power rating of 0.16 Watts against your application's peak signal levels to prevent component damage.

Attenuators Selection Notes

Select this model when precise, digitally controlled attenuation is required up to 13 GHz. The 0.5 dB step size offers high granularity compared to standard coarse-step attenuators. Ensure the SMA interface compatibility with existing cabling and the 22 dBm power rating suits the signal environment. Consider the physical footprint and thermal management needs associated with continuous operation at maximum attenuation.

Attenuators Part Context

This component belongs to Fairview Microwave's line of programmable attenuators, distinct from their passive adapters or amplifiers like the SB4000A or FMAM1044. Unlike the broadband bias tee or low-noise amplifier, the FMAM4000 focuses specifically on signal reduction. Its 13 GHz limit contrasts with higher-frequency options like the FMRJ1002, positioning it for mid-range microwave applications.

Attenuators Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Users must verify electrical compatibility, particularly regarding the 0.5 dB step resolution and TTL control logic, when considering alternative programmable attenuators.