Agilent Technologies E1437A User Manual page 145

20 msample/second adc with filters and fifo
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E1437A
ASCII Overview and Commands
Example:
Here are some bandwidth and sample rate results using the "k" calculation for
bandwidth:
Fs = 20.48 MHz default internal ADC clock
CAUTION
Turning decimation ON when bw=0 results in aliasing (garbage data) due to
upper limit of the sampling frequency.
Reset Values
sigBbw=0, decimate=OFF
See Also
CLOCK:FS?, FREQUENCY:SETUP, FILTER:SYNC, INPUT:ALIAS:FILTER,
DATA:MODE
5-22
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Signal Bandwidth
sigBw
25 Db
0
±7.37
1
±3.69
±1.84
2
±0.92
3
4
±0.46
... Continue to decrease by factors of two ...
Sample Rate
15 Db
Decimation OFF
±10.24
20.48
±5.12
20.48
±2.56
10.24
±1.28
5.12
±0.64
2.56
FILTER:SETUP
command/query
Decimation ON
10.24
(see CAUTION)
10.24
5.12
2.56
1.28

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