Datasheet

TLV320AIC3107
SLOS545D –NOVEMBER 2008 –REVISED DECEMBER 2014 www.ti.com
8.6 Electrical Characteristics
At 25°C, AVDD_DAC = 3.3 V, DRVDD = 3.3 V, SPVDD = 5 V, IOVDD = 3.3 V, DVDD = 1.8 V, Fs = 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, A-
Fs = 48 ksps, 0 dB PGA gain, Inputs ac-shorted to ground 80 92 dB
weighted
(1) (2)
Fs = 48 ksps, 0 dB PGA gain,
Dynamic range
(2)
91 dB
–60 dB full-scale input signal
Fs = 48 ksps, 0 dB PGA gain,
THD Total harmonic distortion –88 –70 dB
–2dB full-scale 1kHz input signal
217 Hz signal applied to DRVDD 49
Power supply rejection ratio dB
1 kHz signal applied to DRVDD 46
Fs = 48 ksps, 0 dB PGA gain,
Gain error 0.84 dB
–2dB full-scale 1kHz input signal
1 kHz, -2dB full-scale signal, MIC3L to MIC3R -86
Input channel separation 1 kHz, -2dB full-scale signal, MIC2L to MIC2R -98 dB
1 kHz, -2dB full-scale signal, MIC1L to MIC1R -75
ADC programmable gain
1-kHz input tone 59.5 dB
amplifier maximum gain
ADC programmable gain
0.5 dB
amplifier step size
LINE1L inputs routed to single ADC
20
Input mix attenuation = 0 dB
LINE1L inputs routed to single ADC,
80
input mix attenuation = 12 dB
Input resistance kΩ
LINE2L inputs routed to single ADC
20
Input mix attenuation = 0 dB
LINE2L inputs routed to single ADC,
80
input mix 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, A- Fs = 48 ksps, 0 dB PGA gain, Inputs ac-shorted to
92 dB
weighted
(1) (2)
ground, Differential Mode
Fs = 48 ksps, 0 dB PGA gain, –2dB Full-scale 1kHz input
THD Total harmonic distortion –91 dB
signal, Differential Mode
ANALOG PASS THROUGH MODE
LINE1L to LEFT_LOP 330
LINE1R to RIGHT_LOP 330
Input to output switch
Ω
resistance, (r
DS(on)
)
SWINP to SWOUTP 1
SWINM to SWOUTM 1
ADC DIGITAL DECIMATION FILTER, Fs = 48 kHz
Filter gain from 0 to 0.39 Fs ±0.1 dB
Filter gain at 0.4125 Fs –0.25 dB
Filter gain at 0.45 Fs –3 dB
Filter gain at 0.5 Fs –17.5 dB
Filter gain from 0.55 Fs to 64 Fs –75 dB
Filter group delay 17/Fs 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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