General Description
The HMC121 chip is an absorptive voltage variable attenuator. It features an on-chip reference attenuator for use with an external op-amp to provide simple single voltage attenuation control. The device is ideal in designs where an analog control signal must control RF signal levels over a 30 dB range, such as AGC circuits and in temperature compensation of multiple gain stages. See SMT packaged versions HMC121G8 (hermetic) and HMC121C8 (non hermetic).

FEATUREs
   Wide Bandwidth: DC - 15 GHz
   Low Phase Shift vs. Attenuation
   30 dB Attenuation Range
   Simplified Voltage Control

Typical Applications
• Base Station Infrustructure
• Portable Wireless, CATV & DBS
• MMDS & Wireless LAN
• Wireless Local Loop
• Military, Space, & Test Equipment