SMG40

Attenuators Overview

The SMG40 is a voltage-controlled attenuator module from MACOM Technology Solutions, operating within the 500 MHz to 4 GHz frequency range. It features a 50 Ohm impedance and utilizes thin film manufacturing processes for high reliability. The device employs three PIN diodes to provide a non-linear attenuation response across its broadband frequency spectrum. It is available in hermetically sealed TO-8 and surface mount packages, with MIL-STD-883 environmental screening options.

Attenuators Feature Summary

• Utilizes discrete hybrid design with thin film manufacturing for accurate performance
• Employs three PIN diodes for non-linear attenuation response
• Offers wide band performance with excellent insertion loss characteristics
• Provides fast switching capabilities suitable for dynamic applications

Attenuators Applications

• Aerospace and defense systems
• Wireless communications infrastructure
• Wireline communications equipment
• Broadband CATV applications

Attenuators Procurement Notes

Verify the specific package type (TO-8 or Surface Mount) required for your design, as both are available. Confirm if MIL-STD-883 environmental screening is necessary for your application, as this may affect part selection and availability. Ensure compatibility with your control voltage requirements given the non-linear attenuation response. Check current datasheets for any recent product change notices or marking updates.

Attenuators Selection Notes

Select the SMG40 when broadband operation between 500 MHz and 4 GHz is required with precise voltage control. Consider the TO-8 package for hermetic sealing needs or surface mount for PCB integration. Evaluate the < 3.0 dB typical insertion loss and high dynamic range against system sensitivity requirements. Ensure the switching speed meets your system's timing constraints.

Attenuators Part Context

The SMG40 belongs to MACOM's family of voltage-controlled attenuator modules, which also includes variants like the SMG1, SMG2, and G40. These devices share similar hybrid thin-film construction techniques but differ in frequency ranges and pin configurations. The SMG40 specifically targets higher frequency applications compared to lower-band counterparts in the same series.

Attenuators Replacement Considerations

Direct substitutes include other MACOM voltage-controlled attenuators such as the G40 or SMG1/SMG2 series, depending on frequency coverage needs. Verify pinout compatibility and package dimensions before substitution. Cross-reference specifications for insertion loss and dynamic range to ensure equivalent performance in the target application.