HMC812A GaAs MMIC Voltage-Variable Attenuator, 5 - 30 GHz
The HMC812ALC4 is an absorptive Voltage Variable
Attenuator (VVA) which operates from 5 - 30 GHz
and is ideal in designs where an analog DC control
signal must be used to control RF signal levels over a
30 dB amplitude range. It features two shunt-type
attenuators which are controlled by two analog voltages,
Vctrl1 and Vctrl2. Optimum linearity performance
of the attenuator is achieved by first varying
Vctrl1 of the 1st attenuation stage from -3V to 0V
with Vctrl2 fixed at -3V. The control voltage of the
2nd attenuation stage, Vctrl2, should then be varied
from -3V to 0V, with Vctrl1 fixed at 0V. The HMC812LC4
is housed in a RoHS compliant 4x4 mm QFN leadless
ceramic package.
Applications
However, if the Vctrl1 and Vctrl2 pins are connected
together it is possible to achieve the full analog attenuation
range with only a small degradation in input
IP3 performance. Applications include AGC circuits
and temperature compensation of multiple gain stages
in microwave point-to-point and VSAT radios.
Data Sheets
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| HMC812ALC4 Pre-Release | 24 ld LCC (4x4mm w/2.5mm EP) | OTH 50 | -40 to 85C | 0 | 0 | Y |
