TLV320AIC3104_14 Datasheet, PDF (15/95 Pages) Texas Instruments – Low-Power Stereo Audio Codec

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8.8 Typical Characteristics
TLV320AIC3104
SLAS510D – FEBRUARY 2007 – REVISED DECEMBER 2014
0
Load = 16 Ω
−10 AC-Coupled
−20
−30
−40
−50
−60
−70
HPL
DRVDD = 2.7 V
HPR
DRVDD = 2.7 V
HPL
DRVDD = 3.3 V
HPR
DRV_DD = 3.3 V
HPR
DRV_DD = 3.6 V
HPL
DRVDD = 3.6 V
0
−20
−40
−60
−80
−100
−120
−140
−80
0
0
10
20
30
40
50
60
70
80
90
100
P − Headphone Power − mW
G001
Figure 5. THD vs Headphone Power, 16-Ω Load
−20
−40
−60
−80
−100
−120
−140
−160
0
2
0.85
0.8
0.75
0.7
4
6
8
10
12
14
16
18
20
f − Frequency − kHz
G004
Figure 7. Line Input to ADC FFT Plot
Left ADC
Right ADC
0.65
0.6
0.55
0.5
0.45
0.4
0
10
20
30
40
50
60
70
PGA Setting (dB)
G009
Figure 9. ADC Gain Error vs PGA Gain Setting
−160
0
42
2
4
6
8
10
12
14
16
18
20
f − Frequency − kHz
G003
Figure 6. DAC to Line Output FFT Plot
40 Input = −65 dBFS
38
36
34
32
30
28
26
24
0
10
20
30
40
50
60
PGA Gain Setting − dB
G006
Figure 8. ADC SNR vs PGA Gain Setting, –65-dBFS Input
3.6
3.4
3.2
MICBIAS = AVDD
3.0
2.8
2.6
MICBIAS = 2.5 V
2.4
2.2
MICBIAS = 2 V
2.0
1.8
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
3.6
AVDD − Supply Voltage − V
G007
Figure 10. MICBIAS Output Voltage vs AVDD
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