CDB43131-GBK
58
DS1155V2DB1
6.3 Measured Results
This section shows some measured dynamic range and THD+N results from the CDB43131 kit.
6.3.1
Test Waveforms
All test waveforms were generated using the APx Waveform Generator Utility that can be found on the Audio Precision
website.
Table 11 Test Waveforms
Test Type
Waveform Name
Sample Rates
Resolution
Channels
THD+N
Reference Level (0 dB)
44.1 kHz
24 bits
2
DNR
Dynamic Range (1 kHz)
44.1 kHz
24 bits
2
6.3.2
THD+N Results
The table below lists measured THD+N results using the test waveforms under varying load and full-scale voltage
conditions.
Table 12 Measured THD+N Results
Output Load (R
L
)
Full Scale Voltage (VRMS)
Channel
Datasheet Spec (Typical)
Measured Result
1
600
1.7
A
–113 dB
–113.0 dB
B
–113.2 dB
XLR
–114.1 dB
32
1.0
A
–110 dB
–108.5 dB
B
–107.7 dB
XLR
–111.8 dB
16
0.5
A
–100 dB
–103.8 dB
B
–103.5 dB
XLR
–108.8 dB
Notes:
1. Refer to the CS43131 data sheet for test conditions.
6.3.3
Dynamic Range Results
The table below lists measured DNR results using the test waveforms under varying load and full-scale voltage
conditions.
Table 13 Measured DNR Results
Output Load (R
L
)
Full Scale Voltage (VRMS)
Channel
Datasheet Spec (Typical)
Measured Result
1
600
1.7
A
130 dB
130.5 dB
2
B
130.4 dB
2
XLR
131.6 dB
32
1.0
A
125 dB
122.5 dB
B
122.4 dB
XLR
126.8 dB
16
0.5
A
119 dB
116.5 dB
B
116.5 dB
XLR
120.9 dB
Notes:
1. Refer to CS43131 data sheet for test conditions.
2. Tested with the CDB-HDR-MEAS Board.
