TLV320AIC3206 Datasheet, PDF (11/42 Pages) Texas Instruments – Ultra Low Power Stereo Audio Codec

TLV320AIC3206
www.ti.com
SLAS649A – DECEMBER 2010 – REVISED DECEMBER 2010
Electrical Characteristics, Audio DAC Outputs
At 25°C, 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 = 10 kΩ (single-ended), 56pF
Line Output on AVdd Supply
Input & Output CM=0.9V
DOSR = 128, MCLK=256* 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, 1-kHz input signal
–81
–70 dB
DAC Gain Error
0 dB, 1kHz input full scale signal
0.5
dB
DAC Mute Attenuation
Mute
121
dB
DAC channel separation
–1 dB, 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 = 10 kΩ (single-ended), 56pF
Line Output on AVdd Supply
Input & Output CM=0.75V; AVdd=1.5V
DOSR = 128
MCLK=256* fs
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 1 kHz input full-scale signal
0.375
99
98
V_RMS
dB
dB
THD+N Total Harmonic Distortion plus Noise
–1 dB full-scale, 1-kHz 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=256* 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 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
Copyright © 2010, Texas Instruments Incorporated
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