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oscilloscope preamp
Ti TLC5510 20Mhz 8byte TLC5540 40Mhz 8byte
The two High rate ADC is enough clock for 5Mhz Signal.
because you have to get a 10Mhz ADC for stabile
anti-overlap.
So, you must a Sram or Fifo for store ADC data.
Search in Internet, you can find some article.
Circuit Cellar...
useing the same measure channel to eliminate ADC's system error, it's nice ideas. But system have to switch two
signal for one measure ADC, it take many times.
My project request about get data and
process it in 1million second.
Dual ADC is good select for speed reason.
i plan to make a math...
1) First time, we planned to use a analog mixer for phase detect.
but the different of two signal amplitude affect the output value.
mixer phase=sin(wt+a)*sin(wt) then filter=> phase=sin(a)
if mixer phase=g1*sin(wt+a)*g2*sin(wt) filter=> phase=g1*g2*sin(a);
So if you compare the phase of two...
Thank you for reply my question!
I plan to useing TI's TLC5540 High ADC 40Msps for equivalent time sampling. So,
I very care about S/Hold Time and Aerpture time.
In my design, I have to measure two RF signal's Phase degree. for example, That's a 10Mhz signal, I use a 10.01Mhz Clk for ADC, ADC...
In High Speed ADC , S/H is a very important Part for AD.
S/H 's apeture time affect ADC analog signal.
apeture time is relation with ADC CLK??? who know?
for example: apeture time is 1ns,
Different's ADC CLK Frequency can change apeture time???
Hi everyone:
Recently , I begin a project for RF Impedance Measurement,
Specially for antenna impedance. I plan use a wisdon resistance bridge to
measure gain&phase data.
analog device inc's ic ad8302 look like a good choose for this design,
who can give me some advice?
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