Datasheet

ADAU1761
Rev. C | Page 17 of 92
TYPICAL PERFORMANCE CHARACTERISTICS
28
0
2
4
6
8
10
12
14
16
18
20
22
24
26
–60 0–10–20–30–40–50
STEREO OUTPUT POWER (mW)
DIGITAL 1kHz INPUT SIGNAL (dBFS)
07680-055
Figure 8. Headphone Amplifier Power vs. Input Level, 16 Ω Load
18
0
2
4
6
8
10
12
14
16
–60 0–10–20–30–40–50
STEREO OUTPUT POWER (mW)
DIGITAL 1kHz INPUT SIGNAL (dBFS)
07680-057
Figure 9. Headphone Amplifier Power vs. Input Level, 32 Ω Load
100
90
80
70
60
50
40
30
20
10
0
FREQUENCY (NORMALIZED TO f
S
)
MAGNITUDE (dBFS)
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
07680-008
Figure 10. ADC Decimation Filter, 64× Oversampling, Normalized to f
S
–
30
–105
–100
–95
–90
–85
–80
–75
–70
–65
–60
–55
–50
–45
–40
–35
–60 0–10–20–30–40–50
THD + N (dBV)
DIGITAL 1kHz INPUT SIGNAL (dBFS)
07680-056
Figure 11. Headphone Amplifier THD + N vs. Input Level, 16 Ω Load
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–60 0–10–20–30–40–50
THD + N (dBV)
DIGITAL 1kHz INPUT SIGNAL (dBFS)
07680-058
Figure 12. Headphone Amplifier THD + N vs. Input Level, 32 Ω Load
0 0.05 0.10 0.20 0.30 0.400.15 0.25 0.35
–0.06
–0.04
–0.02
0
0.02
0.04
FREQUENCY (NORMALIZED TO f
S
)
MAGNITUDE (dBFS)
07680-009
Figure 13. ADC Decimation Filter Pass-Band Ripple, 64× Oversampling,
Normalized to f
S