TLV320AIC3263_15 Datasheet, PDF (12/63 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, ADC
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
AUDIO ADC (CM = 0.9V) ^{(1) (2)}
TEST CONDITIONS
MIN TYP MAX UNIT
Input signal level (0dB)
Device Setup
Single-ended, CM = 0.9V
1kHz sine wave input, Single-ended Configuration
IN2R to Right ADC and IN2L to Left ADC, R_in = 20kΩ, f_s = 48kHz,
AOSR = 128, MCLK = 256*f_s, PLL Disabled; AGC = OFF,
Channel Gain = 0dB, Processing Block = PRB_R1,
Power Tune = PTM_R4
0.5
V_RMS
Inputs ac-shorted to ground
85
94
SNR
Signal-to-noise ratio, A-
weighted^{(1) (2)}
IN1R, IN3R, IN4R each exclusively routed in separate tests to Right
ADC and ac-shorted to ground
IN1L, IN3L, IN4L each exclusively routed in separate tests to Left
ADC and ac-shorted to ground
94
dB
DR
Dynamic range A-
weighted^{(1) (2)}
–60dB full-scale, 1-kHz input signal
94
dB
–3 dB full-scale, 1-kHz input signal
–89 –75 dB
IN1R,IN3R, IN4R each exclusively routed in separate tests to Right
–88
THD+N
Total Harmonic
Distortion plus Noise
ADC
IN1L, IN3L, IN4L each exclusively routed in separate tests to Left
ADC
–3dB full-scale, 1-kHz input signal
Gain Error
1kHz sine wave input at -3dBFS, Single-ended configuration
R_in = 20K f_s = 48kHz, AOSR=128, MCLK = 256* f_s, PLL Disabled
AGC = OFF, Channel Gain=0dB, Processing Block = PRB_R1,
Power Tune = PTM_R4, CM=0.9V
0.02
dB
Input Channel
Separation
1kHz sine wave input at -3dBFS, Single-ended configuration
IN1L routed to Left ADC, IN1R routed to Right ADC, R_in = 20K
AGC = OFF, AOSR = 128, Channel Gain=0dB, CM=0.9V
110
dB
Input Pin Crosstalk
1kHz sine wave input at –3dBFS on IN2L, IN2L internally not routed.
IN1L routed to Left ADC, ac-coupled to ground
112
dB
1kHz sine wave input at –3dBFS on IN2R, IN2R internally not
routed.
IN1R routed to Right ADC, ac-coupled to ground
Single-ended configuration R_in = 20kΩ, AOSR=128 Channel
Gain=0dB, CM=0.9V
PSRR
217Hz, 100mVpp signal on AVDD_18, AVDDx_18
Single-ended configuration, Rin=20kΩ, Channel Gain=0dB;
CM=0.9V
59
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 pre-analyzer 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
12
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