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GaAsMMIC控制电路中的开关MESFET通常是在栅极加0V或是负极性的夹断电压Vp来控制电路工作的。这样在许多电子系统的中会遇到将控制信号(如TTL电平)变换成0V和负极性的Vp,或使用两路互补的控制信号,从而实现对这种MMIC的电信号控制。为此,必须在芯片外设计专用的驱动电路或控制?
The switch MESFET in GaAsMMIC control circuit usually controls the circuit to work by adding a pinch-off voltage Vp of 0V or negative polarity to the gate. Thus in many electronic systems there will be control signals (such as TTL level) converted to 0V and negative Vp, or the use of two complementary control signals in order to achieve this MMIC electrical signal control. To this end, we must design a dedicated drive circuit or control outside the chip?