HMC712 Voltage Variable Attenuator Chip, 5 - 30 GHz
The HMC712 die 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. 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.
技术特性
- Wide Bandwidth: 5 - 30 GHz
- Excellent Linearity: +28 dBm Input P1dB
- Wide Attenuation Range: 30 dB
- Compact Die Size: 1.4 x 1.2 x 0.1 mm
订购信息 Ordering Information
应用领域 APPLICATION
- Point-to-Point Radio
- VSAT Radio
- Test Instrumentation
- Microwave Sensors
- Military, ECM & Radar
|
技术指标
| Freq. (GHz) |
Function |
Loss (dB) |
Atten. Range (dB) |
IIP3 (dBm) |
Control Input (Vdc) |
Package |
| 5 - 30 |
Analog VVA |
2.5 |
0 to 30 |
32 |
0 to -3V |
Chip |
功能框图 Functional Block Diagram
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