TLV320AIC3263_15 Datasheet, PDF (20/63 Pages) Texas Instruments – Ultra Low Power Stereo Audio Codec With miniDSP, DirectPath Headphone, and Class-D Speaker Amplifier

TLV320AIC3263
SLAS923 – JUNE 2013
www.ti.com
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 (GROUND-CENTERED CIRCUIT CONFIGURATION)
Device Setup
Load = 16Ω (single-ended), 56pF,
Input CM=0.9V;
DOSR = 128, MCLK=256* f_s,
Channel Gain = 0dB,
Processing Block = PRB_P1,
Power Tune = PTM_P3,
Headphone Output Strength=100%
Output 1 Output voltage
SNR
Signal-to-noise ratio, A-weighted ⁽⁵⁾
(6)
All zeros fed to DAC input
0.5
83
94
V_RMS
dB
DR
Dynamic range, A-weighted ^{(5) (6)}
–60dB 1 kHz input full-scale signal
94
dB
THD+N Total Harmonic Distortion plus Noise –3dB full-scale, 1-kHz input signal
-75 -60 dB
DAC Gain Error
–3dB, 1kHz input full scale signal
0.03
dB
DAC Mute Attenuation
Mute
130
dB
DAC channel separation
–3dB, 1kHz signal, between left and right HP out
80
dB
DAC PSRR
100mVpp, 1kHz signal applied to AVDD_18,
AVDD1x_18
100mVpp, 217Hz signal applied to AVDD_18,
AVDD1x_18
59
dB
63
dB
Power Delivered
THDN ≤ -40dB, Load = 16Ω
22
mW
Output 2
SNR
Output voltage
Load = 16Ω (single-ended), Channel Gain = 5dB
Signal-to-noise ratio, A-weighted^{(5) (6)} All zeros fed to DAC input, Load = 16Ω
Power Delivered
THDN ≤ -40dB, Load = 16Ω
0.8
V_RMS
95
dB
25
mW
Output 3
SNR
Output voltage
Load = 32Ω (single-ended), Channel Gain = 5dB
Signal-to-noise ratio, A-weighted^{(5) (6)} All zeros fed to DAC input, Load = 32Ω
Power Delivered
THDN ≤ -40dB, Load = 32Ω
0.9
V_RMS
97
dB
22
mW
(5) 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.
(6) 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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