Datasheet

TLV320AIC3204
www.ti.com SLOS602B –SEPTEMBER 2008–REVISED OCTOBER 2012
Electrical Characteristics, Audio DAC Outputs (continued)
At 25°C, AV
DD
, DV
DD
, IOV
DD
= 1.8V, LDOIN = 3.3V, AV
DD
LDO disabled, f
s
(Audio) = 48kHz, C
ref
= 10µF on REF pin, PLL
disabled unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DAC channel separation –1dB, 1kHz signal, between left and right HP 110 dB
out
100mVpp, 1kHz signal applied to AV
DD
73 dB
DAC PSRR
100mVpp, 217Hz signal applied to AV
DD
78 dB
R
L
= 16Ω, Output Stage on AV
DD
= 1.8V 15
THDN < 1%, Input CM = 0.9V,
Output CM = 0.9V
Power Delivered mW
R
L
= 16Ω Output Stage on LDOIN = 3.3V, 64
THDN < 1% Input CM = 0.9V,
Output CM = 1.65V
AUDIO DAC – STEREO SINGLE-ENDED HEADPHONE OUTPUT
Load = 16Ω (single-ended), 50pF,
Headphone Output on AV
DD
Supply,
Input and Output CM = 0.75V; AV
DD
= 1.5V,
Device Setup DOSR = 128, MCLK = 256 * f
s
,
Channel Gain = – 2dB, word length = 20-bits;
Processing Block = PRB_P1,
Power Tune = PTM_P4
Full scale output voltage (0dB) 0.375 V
RMS
SNR Signal-to-noise ratio, A-weighted
(3)(4)
All zeros fed to DAC input 99 dB
DR Dynamic range, A-weighted
(3)(4)
-60dB 1kHz input full-scale signal 98 dB
THD+N Total Harmonic Distortion plus Noise –1dB full-scale, 1kHz input signal –83 dB
AUDIO DAC – MONO DIFFERENTIAL HEADPHONE OUTPUT
Load = 32Ω (differential), 50pF,
Headphone Output on LDOIN Supply
Input CM = 0.75V, Output CM = 1.5V,
AV
DD
= 1.8V, LDOIN = 3.0V, DOSR = 128
Device Setup
MCLK = 256 * f
s
, Channel (headphone driver)
Gain = 5dB for full scale output signal,
word length = 16 bits,
Processing Block = PRB_P1,
Power Tune = PTM_P3
Full scale output voltage (0dB) 1778 mV
RMS
SNR Signal-to-noise ratio, A-weighted
(3)(4)
All zeros fed to DAC input 98 dB
DR Dynamic range, A-weighted
(3)(4)
–60dB 1kHz input full-scale signal 96 dB
THD Total Harmonic Distortion –3dB full-scale, 1kHz input signal –82 dB
R
L
= 32Ω, Output Stage on LDOIN = 3.3V, 136 mW
THDN < 1%, Input CM = 0.9V,
Output CM = 1.65V
Power Delivered
R
L
= 32Ω Output Stage on LDOIN = 3.0V, 114 mW
THDN < 1% Input CM = 0.9V,
Output CM = 1.5V
(3) Ratio of output level with 1kHz full-scale sine wave input, to the output level with the inputs short circuited, measured A-weighted over a
20Hz to 20kHz bandwidth using an audio analyzer.
(4) All performance measured with 20kHz low-pass filter and, where noted, A-weighted filter. Testing without 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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