tony_lth
Advanced Member level 5
We use Mini ZX47-40+ for pulse power detector.
Conditions: carrier freq 2G, pulse period 2us, pulse width 1us
Config: ZX47-40+ output to the input of ADC, then sampled by controller CPU
Problem: The power detector slope is -25mV/dB. But the datasheet said at the detector output there is 20mV Vpp typical at 10MHz. At the oscilloscope, we can see the power detector output fluctuate about 10mV, sometimes about 20mV, that can cause output power varies 0.8dB and is not accpeted. How to compress the fluctuation to within 2mV?:shock:
Conditions: carrier freq 2G, pulse period 2us, pulse width 1us
Config: ZX47-40+ output to the input of ADC, then sampled by controller CPU
Problem: The power detector slope is -25mV/dB. But the datasheet said at the detector output there is 20mV Vpp typical at 10MHz. At the oscilloscope, we can see the power detector output fluctuate about 10mV, sometimes about 20mV, that can cause output power varies 0.8dB and is not accpeted. How to compress the fluctuation to within 2mV?:shock: