Texas Instruments DEM-DAI3793A User Manual
www.ti.com
5.4.4 Amplitude Versus Frequency Performance
5.4.4.1
A/D Spectrum
0
20
40
60
80
100
120
140
-
-
-
-
-
-
-
Amplitude(dB)
AMPLITUDE vs FREQUENCY
0
5
10
15
20
Frequency (kHz)
BPZ (Zero Data) Input
0
20
40
60
80
100
120
140
-
-
-
-
-
-
-
Amplitude(dB)
AMPLITUDE vs FREQUENCY
0
5
10
15
20
Frequency (kHz)
-60dB Input
0
20
40
60
80
100
120
140
-
-
-
-
-
-
-
Amplitude(dB)
AMPLITUDE vs FREQUENCY
0
5
10
15
20
Frequency (kHz)
-1dB Input
Measurements for Dynamic Characteristics
Measurement path: 17.Line Input (AIN3L/AIN3R)
csv file: 17_ADC_Line_Input.csv
csv file: 17_ADC_Line_Input.csv
Note that an unweighted filter and an AES17 bandwidth of 22Hz to 20kHz should be set to obtain precise
spectrum results.
spectrum results.
Figure 5-8. A/D Amplitude vs Frequency
Figure 5-9. A/D Amplitude vs Frequency
Result: BPZ (Zero Data) Input
Result: –60dB Input
Figure 5-10. A/D Amplitude vs Frequency
Result: –1dB Input
See
:
for a signal flow block diagram.
SBAU127 – July 2007
Evaluation and Measurements
59