Datasheet

0 20 40 60 80 100
HeadphoneOutputPower-mW
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
THD-TotalHarmonicDistortion-dB
CM=0.9V,
R =16
L
W
CM=0.9V,
R =32
L
W
CM=1.65V,
R =16
L
W
CM=1.65V,
R =32
L
W
-20
0
20 40
60
ChannelGain-dB
100
95
90
85
80
75
70
65
60
55
50
SNR-Signal-to-NoiseRatio-dB
R =10k ,Differential
IN
W
R =20k ,Differential
IN
W
R =10k ,SingleEnded
IN
W
R =20k ,SingleEnded
IN
W
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0 50 100 150 200
HeadphoneoutputPower-mW
THD-TotalHarmonicDistortion-dB
Load=32 BTLW
CM=1.5V
CM=1.65V
60
65
70
75
80
85
90
95
100
105
0.75
0.9
1.25
1.5
1.65
OutputCommonModeSetting-V
SNR-Signal-to-NoiseRatio-dB
0
10
20
30
40
50
60
70
SNR
OUTPUT POWER
PCM3070
www.ti.com SLAS724 – FEBRUARY 2011
Typical Characteristics
Typical Performance
ADC SNR TOTAL HARMONIC DISTORTION
vs vs
CHANNEL GAIN HEADPHONE OUTPUT POWER
Figure 9. Figure 10.
TOTAL HARMONIC DISTORTION HEADPHONE SNR AND OUTPUT POWER
vs vs
HEADPHONE OUTPUT POWER OUTPUT COMMON MODE SETTING
Figure 11. Figure 12.
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