Description：

The HMC985P4K is an absorptive VoltageVariable ttenuator (VV) which operates from 10- 40 Hz and is ideal in designs where an analogDC control signal must be used to control F signallevels over a 35 dB dynamic range. It features twoshunt-type attenuators which are controlled by twoanalog voltages, Vctl1 and Vctl2. ptimum linearityperformance of the attenuator is achieved by firstvarying Vctl1 of the first attenuation stage from -5V to0V with Vctl2 fixed at -5V. he control voltage of thesecond attenuation stage, Vctl2, should then be variedfrom -5V to 0V with Vctl1 fixed at 0V.If the Vctl1 and Vctl2 pins are connected together it ispossible to achieve the full analog attenuation rangewith only a small degradation in input IP3 performance.pplications include C circuits and temperaturecompensation of multiple gain stages in microwavepoint-to-point and V radios.

Features:

Wide Bandwidth: 10 - 40 GHz

Excellent Linearity: +32 dB Input IP3

Wide Attenuation Range: 35 dB

No External Matching

24 Lead 4x4 mm STM Package: 16 mm²

Typical Applications:

The HMC985P4KE is ideal for:

• Point-to-Point adio

• V adio

• est Instrumentation

• Microwave ensors

• Military, CM & adar G