Hello everyone,I am working on a project of a transmitter.The major part is to generate short pulses.The only source is an oscillator.
However,to choose the proper oscillator,I need to know how much current is needed for the downstream circuit.So I simulate it in Agilent's ADS using transient simulation just like Spice.
The results show that different output impedances of oscillator lead to different currents in circuit. For a given output impedance,I wonder if the drive current can be lower and still make circuit work.Because many practical oscillator does not have so big drive current(for 20ohm,it needs 70mA).
So my question is how to get the drive current that is needed.Is that exactly what Spice show you?How can I know whether a device with a less drive current or power(voltage remains the same) can still work or not?
I still do not know how to limit the max current of circuit or power of source in Spice.Is there power source?
Thanks!
However,to choose the proper oscillator,I need to know how much current is needed for the downstream circuit.So I simulate it in Agilent's ADS using transient simulation just like Spice.
The results show that different output impedances of oscillator lead to different currents in circuit. For a given output impedance,I wonder if the drive current can be lower and still make circuit work.Because many practical oscillator does not have so big drive current(for 20ohm,it needs 70mA).
So my question is how to get the drive current that is needed.Is that exactly what Spice show you?How can I know whether a device with a less drive current or power(voltage remains the same) can still work or not?
I still do not know how to limit the max current of circuit or power of source in Spice.Is there power source?
Thanks!