Datasheet
ELECTRICAL CHARACTERISTICS
TLV320AIC3106
SLAS509E – DECEMBER 2006 – REVISED DECEMBER 2008 ........................................................................................................................................
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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
AUDIO ADC
Input signal level (0-dB) Single-ended input 0.707 V
RMS
Signal-to-noise ratio,
f
S
= 48 ksps, 0-dB PGA gain, inputs ac-shorted to ground 80 92 dB
A-weighted
(1) (2)
Dynamic range
(2)
f
S
= 48 ksps, 0-dB PGA gain, – 60 dB full-scale input signal 91 dB
f
S
= 48 ksps, 0-dB PGA gain, – 2dB full-scale, 1-kHz input
THD Total harmonic distortion – 88 – 70 dB
signal
217-Hz signal applied to DRVDD 49
PSRR Power supply rejection ratio dB
1-kHz signal applied to DRVDD 46
f
S
= 48 ksps, 0-dB PGA gain, – 2dB full-scale, 1-kHz input
Gain error 0.84 dB
signal
1-kHz, – 2-dB full-scale signal, MIC3L to MIC3R – 86
Input channel separation 1-kHz, – 2-dB full-scale signal, MIC2L to MIC2R – 98 dB
1-kHz, – 2-dB full-scale signal, MIC1L to MIC1R – 75
ADC programmable gain amplifier
1-kHz input tone 59.5 dB
maximum gain
ADC programmable gain amplifier
0.5 dB
step size
MIC1L/MIC1R inputs routed to single ADC
20
Input mix attenuation = 0 dB
MIC1L/MIC1R inputs routed to single ADC, input mix
80
attenuation = 12 dB
MIC2L/MIC2R inputs routed to single ADC
20
Input mix attenuation = 0 dB
Input resistance k Ω
MIC2L/MIC2R inputs routed to single ADC, input mix
80
attenuation = 12 dB
MIC3L/MIC3R inputs routed to single ADC
20
Input mix attenuation = 0 dB
MIC3L/MIC3R inputs routed to single ADC, input mix
80
attenuation = 12 dB
Input level control minimum
0 dB
attenuation setting
Input level control maximum
12 dB
attenuation setting
Input signal level Differential Input 1.414 V
RMS
Signal-to-noise ratio, f
S
= 48 ksps, 0-dB PGA gain, inputs ac-shorted to ground,
92 dB
A-weighted
(1) (2)
differential mode
f
S
= 48 ksps, 0-dB PGA gain, – 2-dB full-scale 1-kHz input
THD Total harmonic distortion – 91 dB
signal, differential mode
ANALOG PASS THROUGH MODE
MIC1/LINE1 to LINE_OUT 330
Input to output switch resistance,
Ω
(rds
ON
)
MIC2/LINE2 to LINE_OUT 330
ADC DIGITAL DECIMATION FILTER, f
S
= 48 kHz
Filter gain from 0 to 0.39 f
S
± 0.1 dB
Filter gain at 0.4125 f
S
– 0.25 dB
Filter gain at 0.45 f
S
– 3 dB
Filter gain at 0.5 f
S
– 17.5 dB
Filter gain from 0.55 f
S
to 64 f
S
– 75 dB
Filter group delay 17/f
S
s
(1) Ratio of output level with 1-kHz full-scale sine-wave input, to the output level with the inputs short circuited, measured A-weighted over a
20-Hz to 20-kHz bandwidth using an audio analyzer.
(2) All performance measurements done with 20-kHz low-pass filter and, where noted, A-weighted filter. Failure to use such a filter may
result in higher THD+N and lower SNR and dynamic range readings than shown in the Electrical Characteristics. The low-pass filter
removes out-of-band noise, which, although not audible, may affect dynamic specification values.
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