TLV320AIC3263 Datasheet, PDF (22/62 Pages) Texas Instruments – Check for Samples: TLV320AIC3263

TLV320AIC3263
SLAS923 – JUNE 2013
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Electrical Characteristics, Audio DAC Outputs (continued)
T_A = 25°C; AVDD_18, AVDDx_18, HVDD_18, CPVDD_18, DVDD, IOVDDx = 1.8V; RECVDD_33 = 3.3V; SVDD, SPK_V,
MICBIAS_VDD = 3.6V; f_S (Audio) = 48kHz; Audio Word Length = 20 bits; C_ext = 1μF on VREF_SAR and VREF_AUDIO pins;
PLL disabled unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
AUDIO DAC – STEREO SINGLE-ENDED HEADPHONE OUTPUT (UNIPOLAR CIRCUIT CONFIGURATION)
Device Setup
Load = 16Ω (single-ended), 56pF,
Input and Output CM=0.75V; AVDD_18, AVDDx_18,
HVDD_18=1.5V,
DOSR = 128, MCLK=256* f_s,
Channel Gain = 0dB,
Processing Block = PRB_P1,
Power Tune = PTM_P4
Headphone Output Control = 100%
SNR
Full scale output voltage (0dB)
Signal-to-noise ratio, A-weighted⁽⁹⁾
(10)
All zeros fed to DAC input
0.375
99
V_RMS
dB
DR
Dynamic range, A-weighted ^{(9) (10)}
-60dB 1 kHz input full-scale signal
99
dB
THD+N Total Harmonic Distortion plus Noise –3dB full-scale, 1-kHz input signal
-90
dB
AUDIO DAC – MONO DIFFERENTIAL RECEIVER OUTPUT
Device Setup
Load = 32 Ω (differential), 56pF,
Output CM=1.65V,
AVDDx_18=1.8V, DOSR = 128
MCLK=256* f_s, Left DAC routed to RECP, RECM,
Channel (Receiver Driver) Gain = 6dB for full scale
output signal,
Processing Block = PRB_P4,
Power Tune = PTM_P4
SNR
Full scale output voltage (0dB)
Signal-to-noise ratio, A-weighted⁽⁹⁾
(10)
All zeros fed to DAC input
2
87 102
V_RMS
dB
DR
Dynamic range, A-weighted ^{(9) (10)}
–60dB 1kHz input full-scale signal
102
dB
THD+N Total Harmonic Distortion plus Noise –3dB full-scale, 1-kHz input signal
-91 –70 dB
DAC PSRR
100mVpp, 1kHz signal applied to AVDD_18,
AVDD1x_18
100mVpp, 217Hz signal applied to AVDD_18,
AVDD1x_18
64
dB
64
dB
Power Delivered
R_L=32Ω
THDN ≤ -40dB, Input CM=0.9V,
Output CM=1.65V
123
mW
(9) 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.
(10) All performance measurements done 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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