CS3511_0912 Datasheet, PDF (18/26 Pages) Cirrus Logic – Stereo 10 W High-efficiency Class-D Audio Power Amplifier

CS3511
6. TYPICAL AUDIO PERFORMANCE PLOTS
Test Conditions (unless otherwise specified): All plots were taken using the CRD3511 Reference Design Board
sourced with a differential input; T_A = 25°C; 10 Hz to 20 kHz Measurement Bandwidth; Performance measurements
taken with a 997 Hz sine wave and AES17 measurement filter; GAIN1 = 0, GAIN0 = 1; VP = 12 VDC.
10
10
5
5
2
1
0.5
%
0.2
0.1
0.05
12.0 V
9.0 V
2
1
0.5
%
0.2
0.1
0.05
12.0 V
9.0 V
0.02
0.01
10m
20m
50m
100m
200m
500m
1
2
W
5
10
20
Figure 5. THD+N vs. Output Power (R_L= 8 Ω)
0.02
0.01
10m
20m
50m
100m
200m
500m
1
2
W
5
10
20
Figure 6. THD+N vs. Output Power (R_L= 6 Ω)
10
10
5
5
2
1
0.5
%
0.2
0.1
10 kHz
0.05
1 kHz
100 Hz
0.02
0.01
0.007
10m
20m
50m
100m
200m
500m
1
2
W
5
10
Figure 7. THD+N vs. Output Power (R_L= 8 Ω)
2
1
0.5
%
0.2
0.1
0.05
10 kHz
1 kHz
100 Hz
0.02
0.01
0.007
20
1m
2m
5m
10m
20m
50m 100m 200m
500m
1
2
5
10
20
W
Figure 8. THD+N vs. Output Power (R_L= 6 Ω)
10
10
5
5
2
1
0.5
%
0.2
0.1 _{GAIN=01 GAIN=10 GAIN=11}
0.05
2
1
0.5
%
0.2
0.1 _{GAIN=01 GAIN=10 GAIN=11}
0.05
0.02
GAIN=00
0.01
10m
20m
50m
100m
200m
500m
1
2
W
5
10
20
Figure 9. THD+N vs. Output Power (R_L= 8 Ω)
0.02
GAIN=00
0.01
10m
20m
50m
100m
200m
500m
1
2
W
5
10
20
Figure 10. THD+N vs. Output Power (R_L= 6 Ω)
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DS845F1