Datasheet

TLV320AIC32
SLAS479C – AUGUST 2005 – REVISED DECEMBER 2008 ............................................................................................................................................. www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
At 25 ° C, AVDD, DRVDD, IOVDD = 3.3 V, DVDD = 1.8 V, Fs = 48-kHz, 16-bit audio data (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
AUDIO DAC Differential Line output, load = 10 k Ω , 50 pF
1.414 V
RMS
0-dB gain to line outputs. DAC output common-mode
Full-scale differential output voltage
setting = 1.35 V, output level control gain = 0-dB
4.0 V
PP
Fs = 48 kHz, 0-dB gain to line outputs, zero signal
Signal-to-noise ratio, A-weighted
(3)
90 100 dB
applied, referenced to full-scale input level
Fs = 48 kHz, 0-dB gain to line outputs,
Dynamic range, A-weighted 100 dB
1 kHz – 60 dB signal applied
Total harmonic distortion Fs = 48 kHz, 1 kHz 0 dB input signal applied – 93 – 75 dB
Power supply rejection ratio 234 Hz, 100 mVpp on AVDD, DRVDD1/2 81 dB
DAC channel separation (left to right) 1-kHz, 0-dB – 100 dB
DAC interchannel gain mismatch 1 kHz input, 0dB gain 0.1 dB
DAC Gain Error 1 kHz input, 0dB gain – 0.4 dB
DAC DIGITAL INTERPOLATION
Fs = 48-kHz
FILTER
Passband High-pass filter disabled 0.45 × Fs Hz
Passband ripple High-pass filter disabled ± 0.06 dB
Transition band 0.45 × Fs 0.55 × Fs Hz
Stopband 0.55 × Fs 7.5 × Fs Hz
Stopband attenuation 65 dB
Group delay 21/Fs Sec
STEREO HEADPHONE DRIVER AC-coupled output configuration
(3)
0-dB gain to high power outputs. Output
0-dB full-scale output voltage 0.707 V
RMS
common-mode voltage setting = 1.35 V
First option 1.35
Programmable output common mode
Second option 1.50
voltage (applicable to Line Outputs V
Third option 1.65
also)
Fourth option 1.8
Maximum programmable output level
9 dB
control gain
Programmable output level control
1 dB
gain step size
R
L
= 32 Ω 15
P
O
Maximum output power mW
R
L
= 16 Ω 30
Signal-to-noise ratio, A-weighted
(4)
94 dB
– 77
1-kHz output, P
O
= 5 mW, R
L
= 32 Ω
0.014
– 76
1-kHz output, P
O
= 10 mW, R
L
= 32 Ω
0.016
Total harmonic distortion dB%
– 73
1-kHz output, P
O
= 10 mW, R
L
= 16 Ω
0.022
– 71
1-kHz output, P
O
= 20 mW, R
L
= 16 Ω
0.028
Channel separation 1 kHz, 0 dB input 90 dB
Power supply rejection ratio 217 Hz, 100 mVpp on AVDD, DRVDD1/2 48 dB
Mute attenuation 1-kHz output 107 dB
(3) Unless otherwise noted, all measurements use output common-mode voltage setting of 1.35 V, 0-dB output level control gain, 16- Ω
single-ended load.
(4) Ratio of output level with a 1-kHz full-scale input, to the output level playing an all-zero signal, measured A-weighted over a 20-Hz to
20-kHz bandwidth.
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