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12 February 2014

Custom MMIC adds two DC-18GHz SPDT non-reflective switches

Custom MMIC of Westford, MA, USA is introducing two new DC-18GHz single-pole double-throw (SPDT) non-reflective switches, the CMD195C3 and the CMD196C3. While both switches cover the same bandwidth and are housed in the same 3mm x 3mm RoHS-compliant SMT package, they differ in their insertion loss.

The CMD195C3 has an insertion loss of 2.25dB at the low end of its bandwidth, which then reduces monotonically to 1.5dB at the higher frequencies. The positive slope in insertion loss versus frequency allows for several CMD195C3s to be cascaded together without the need for additional gain equalization circuitry.

By contrast, the CMD196C3 is a general-purpose SPDT design with a low insertion loss of 1.5dB that increases slightly as the frequency approaches the upper end of the operating bandwidth.

Both switches electronically terminate the isolated port, have an isolation of 40dB or greater, and a fast switching speed time of 1.8ns. Switching is controlled by complementary negative logic levels of 0/-5V.

Suitable applications for the new switches include microwave radio and VSAT, telecom infrastructure, test instrumentation, and military end-use.

Tags: Custom MMIC MMIC GaAs

Visit: www.CustomMMIC.com

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