Datasheet

TLV320AIC3105
SLAS513B – FEBRUARY 2007 – REVISED DECEMBER 2008 ......................................................................................................................................... www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
At 25 ° C, AVDD_DAC, DRVDD, IOVDD = 3.3 V, DVDD = 1.8 V, f
S
= 48 kHz, 16-bit audio data (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
MICROPHONE BIAS
Programmable setting = 2 V 2
Programmable setting = 2.5 V 2.3 2.455 2.7
Bias voltage V
DRVDD –
Programmable setting = DRVDD
0.24
Current sourcing Programmable setting = 2.5 V 4 mA
AUDIO DAC – Differential Line Output, Load = 10 k Ω
1.414 V
RMS
0-dB full-scale input signal, output volume control = 0 dB,
Full-scale output voltage
output common-mode setting = 1.35 V
4 V
PP
No input signal, output volume control = 0 dB, output
SNR Signal-to-noise ratio 90 102 dB
common-mode setting = 1.35 V, f
S
= 48 kHz, A-weighted
– 60-dB, 1-kHz full-scale input signal, output volume control =
Dynamic range 0 dB, output common-mode setting = 1.35 V, f
S
= 48 kHz, 99 dB
A-weighted
0-dB, 1-kHz full-scale input signal, output volume control = 0
THD Total harmonic distortion – 95 – 75 dB
dB, output common-mode setting = 1.35 V, f
S
= 48 kHz
217-Hz signal applied to DRVDD, AVDD_DAC 78
PSRR Power-supply rejection ratio dB
1-kHz signal applied to DRVDD, AVDD_DAC 80
DAC channel separation 0-dB full-scale input signal, between left and right LINEOUT 86 dB
DAC interchannel gain mismatch 1-kHz input, 0-dB gain 0.1 dB
0-dB, 1-kHz full-scale input signal, output volume control = 0
DAC gain error – 0.2 dB
dB, output common-mode setting = 1.35 V, f
S
= 48 kHz
AUDIO DAC – Single-Ended Line Output, Load = 10 k Ω
0-dB full-scale input signal, output volume control = 0 dB,
Full-scale output voltage 0.707 V
RMS
output common-mode setting = 1.35 V
No input signal, output volume control = 0 dB, output
SNR Signal-to-noise ratio 97 dB
common-mode setting = 1.35 V, f
S
= 48 kHz, A-weighted
0-dB, 1-kHz full-scale input signal, output volume control = 0
THD Total harmonic distortion – 84 dB
dB, output common-mode setting = 1.35 V, f
S
= 48 kHz
0-dB, 1-kHz full-scale input signal, output volume control = 0
DAC gain error 0.55 dB
dB, output common-mode setting = 1.35 V, f
S
= 48 kHz
AUDIO DAC – Single-Ended Headphone Output, Load = 16 Ω
0-dB full-scale input signal, output volume control = 0 dB,
Full-scale output voltage 0.707 V
RMS
output common-mode setting = 1.35 V
No input signal, output volume control = 0 dB, output
96 dB
common-mode setting = 1.35 V, f
S
= 48 kHz, A-weighted
SNR Signal-to-noise ratio
No input signal, output volume control = 0 dB, output
common-mode setting = 1.35 V, f
S
= 48 kHz, DAC 97 dB
current-boost mode
– 60-dB, 1-kHz full-scale input signal, output volume control =
Dynamic range 0 dB, output common-mode setting = 1.35 V, f
S
= 48 kHz, 97 dB
A-weighted
0-dB, 1-kHz full-scale input signal, output volume control = 0
THD Total harmonic distortion – 71 – 65 dB
dB, output common-mode setting = 1.35 V, f
S
= 48 kHz
217-Hz signal applied to DRVDD, AVDD_DAC 43
PSRR Power-supply rejection ratio dB
1-kHz signal applied to DRVDD, AVDD_DAC 41
0-dB full-scale input signal, between left and right headphone
DAC channel separation 89 dB
out
0-dB, 1-kHz full-scale input signal, output volume control = 0
DAC gain error – 0.85 dB
dB, output common-mode setting = 1.35 V, f
S
= 48 kHz
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