TLV320AIC3206_17 Datasheet, PDF (12/51 Pages) Texas Instruments – Ultra Low-Power Stereo Audio Codec

TLV320AIC3206
SLAS649C – DECEMBER 2010 – REVISED NOVEMBER 2014
www.ti.com
8.8 Electrical Characteristics, Audio DAC Outputs
At 25°C, Vsys, AVdd, DVdd, IOVdd, DVdd_CP, DRVdd_HP = 1.8V, fs (Audio) = 48kHz, Cref = 1µF on REF PIN, PLL and
Charge pump disabled unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
AUDIO DAC – STEREO SINGLE-ENDED LINE OUTPUT (CM = 0.9V)
Device Setup
Load = 10kΩ (single-ended), 56pF
Line Output on AVdd Supply
Input and Output CM=0.9V
DOSR = 128, MCLK = 256 x f_S,
Channel Gain = 0dB, word length = 16 bits,
Processing Block = PRB_P1,
Power Tune = PTM_P3
SNR
DR
Full scale output voltage (0dB)
Signal-to-noise ratio A-weighted^{(1) (2)}
Dynamic range, A-weighted ^{(1) (2)}
All zeros fed to DAC input
–60dB 1kHz input full-scale signal, Word
length = 20 bits
0.5
87
100
100
V_RMS
dB
dB
THD+N Total Harmonic Distortion plus Noise
–3dB full-scale, 1kHz input signal
–81
–70 dB
DAC Gain Error
0dB, 1kHz input full scale signal
0.5
dB
DAC Mute Attenuation
Mute
121
dB
DAC channel separation
–1dB, 1kHz signal, between left and right HP
out
108
dB
DAC PSRR
100mVpp, 1kHz signal applied to AVdd
100mVpp, 217Hz signal applied to AVdd
72
dB
80
dB
AUDIO DAC – STEREO SINGLE-ENDED LINE OUTPUT (CM = 0.75V)
Device Setup
Load = 10kΩ (single-ended), 56pF
Line Output on AVdd Supply
Input and Output CM = 0.75V; AVdd = 1.5V
DOSR = 128
MCLK=256 x f_S
Channel Gain = 0dB
word length = 20-bits
Processing Block = PRB_P1
Power Tune = PTM_P4
SNR
DR
Full scale output voltage (0dB)
Signal-to-noise ratio, A-weighted ^{(1) (2)}
Dynamic range, A-weighted ^{(1) (2)}
All zeros fed to DAC input
–60dB 1kHz input full-scale signal
0.375
99
98
V_RMS
dB
dB
THD+N Total Harmonic Distortion plus Noise
–1dB full-scale, 1kHz input signal
–77
dB
AUDIO DAC – STEREO SINGLE-ENDED HEADPHONE OUTPUT (GROUND-CENTERED CIRCUIT CONFIGURATION)
Device Setup
Load = 16Ω (single-ended), 56pF
Input CM = 0.9V, Output CM = 0V
DOSR = 128,
MCLK = 256x* f_S, Channel Gain = 0dB
word length = 16 bits;
Processing Block = PRB_P1
Power Tune = PTM_P3
FS1
SNR
DR
Full scale output voltage
(for THD ≤ –40dB)
Signal-to-noise ratio, A-weighted^{(1) (2)}
Dynamic range, A-weighted ^{(1) (2)}
All zeros fed to DAC input
–60dB 1kHz input full-scale signal, Word
Length = 20 bits, Power Tune = PTM_P4
0.65
85
95
93
V_RMS
dB
dB
THD+N Total Harmonic Distortion plus Noise
500mV_RMS output (corresponds to FS1 –
2.3dB),
1-kHz input signal
–70
–55 dB
(1) 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.
(2) All performance measured with 20kHz 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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