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but how to select the sample clock?
and with the increasing of the input frequency,we convert the digital output back to analog,and see at which frequency the amplitude fall 3 dB?
can anyone tell me what is the meaning of the ADC analog input bandwidth?
i see the defination is as follows. but i do not know clearly.
Analog Input Bandwidth
The analog input frequency for which the measured
input signal power has dropped by 3 dB.
Added after 3 minutes:
sorry, its the...
thanks a lot. you mean in a zero-RF receiver, if the RF range is 1GHz so the LO port also have to operate during that 1 GHz range to produce zero IF freqency. if during this frequency range the Mixer can work with gain. so the bandwidth is 1GHz? 'with gain' means gain change 3dB during the...
in a zero-IF receiver, for an active Mixer,what is the Mixer bandwidth?
you mean that during the change of RF and LO fuequency(zero IF),the Mixer gain change 3dB, the bandwidth means the frequency range changes at RF or LO port?
if Mixer work in a zero-IF receiver system, its bandwith is...
mixer iip2
you should not choose (flo - (f1 + or - f2) as the second harmonic the iip2 frequency should be (f1- f2), i think you can detect the power of (f1- f2) at the if port .and calculate the iip2 use the formula "IIP2=Pin+(Pfund,out-p(f1- f2),out)" .Pfund,out is the power at IF port with...
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