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TLV320AIC26 Datasheet(PDF) 5 Page - Texas Instruments

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Part No. TLV320AIC26
Description  LOW POWER STEREO AUDIO CODEC WITH HEADPHONE/SPEAKER AMPLIFIER AND 12-BIT BATTERY / TEMPERATURE / AUXILIARY ADC
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

TLV320AIC26 Datasheet(HTML) 5 Page - Texas Instruments

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TLV320AIC26
SLAS412− DECEMBER 2003
www.ti.com
5
ELECTRICAL CHARACTERISTICS
At +25
°C, AVDD,DRVDD,IOVDD = 3.3 V, DVDD = 1.8 V, Int. Vref = 2.5 V, Fs (Audio) = 48 kHz, unless otherwise noted (continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
DAC INTERPOLATION FILTER
Pass band
20
0.45 Fs
Hz
Pass band ripple
±0.06
dB
Transition band
0.45 Fs
0.5501 Fs
Hz
Stop band
0.5501 Fs
7.455 Fs
Hz
Stop band attenuation
65
dB
Filter group delay
21/Fs
sec
De−emphasis error
±0.1
dB
DAC LINE OUTPUT
1-kHz sine wave input, 48 ksps, output drivers
in low power mode, load = 10 k
Ω, 10 pF
Full scale output voltage (0 dB)
By design, D10−D9 = 00 in control register
06H/Page2 corresponding to 2-VPP output
swing
0.707
Vrms
Output common mode
By design, D10−D9 = 00 in control register
06H/Page2 corresponding to 2-VPP output
swing
1.35
V
SNR
Measured as idle channel noise, A-weighted
85
97
dBA
THD
0-dB FS input, 0-dB gain
−95
dB
PSRR
1 kHz, 100 mVpp on AVDD(2) VGND powered
down
56
dB
Interchannel isolation
Coupling from ADC to DAC
84
dB
DAC HEADPHONE OUTPUT
1-kHz sine wave input, 48 ksps, output drivers
in high power mode, load = 16
Ω, 10 pF
Full scale output voltage (0 dB)
By design, D10−D9 = 00 in control register
06H/Page2 corresponding to 2-VPP output
swing
0.707
Vrms
SNR
Measured as idle channel noise, A-weighted
85
97
dBA
THD
−1 dB FS input, 0-dB gain
−91
−55
dB
PSRR
1 kHz, 100 mVpp on AVDD(1) VGND powered
down
54
dB
Interchannel isolation
Coupling from ADC to DAC
85
dB
Mute attenuation
121
dB
Maximum output power
D10−D9 = 00 in control register 06H/Page2
30
mW
Digital volume control gain
−63.5
0
dB
Digital volume control step size
0.5
dB
Channel separation
Between HPL and HPR
80
dB
DAC SPEAKER OUTPUT
Output driver in high power mode,
load = 8
Ω,, connected between HPR and HPL
pins. D10−D9 = 10 in control register
06H/Page2 corresponding to 2.402-VPP output
swing
Output power
0 dB input to DAC
325
mW
SNR
Measured as idle channel noise, A-weighted
102
dBA
THD
−1 dB FS input, 0-dB gain
−86
dB
THD
−6 dB FS input, 0-dB gain
−88
dB
(1) DAC PSRR measurement is calculated as:
PSRR
+ 20 log
10
VSIGsup
V
HPR L


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