The HMC346 is a wideband voltage variable attenuator from Hittite Corporation, operating from DC-20GHz with a 32dB attenuation range.
The HMC346 is a GaAs MMIC voltage-variable attenuator (VVA) designed for DC to 20 GHz applications. It features an on-chip reference attenuator that works with an external op-amp to provide simple single-voltage attenuation control from 0 to -3V. The device is ideal for designs requiring analog DC control of RF signal levels over a 30 dB amplitude range.
| Frequency Range | DC - 20 GHz |
|---|---|
| Attenuation Range | 32 dB (DC - 12 GHz) |
| Die Size | 0.85 mm x 0.85 mm x 0.1 mm |
| Operating Temperature | -55 to +85 °C |
| Insertion Loss (Typical) | 2.3 dB (DC - 12 GHz) |
The maximum RF input power is +18 dBm.
The die should be attached directly to the ground plane eutectically or with conductive epoxy.