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www.ti.com ............................................................................................................................................. SLAS497C – AUGUST 2006 – REVISED DECEMBER 2008
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).
TLV320AIC31
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
STEREO HEADPHONE DRIVER, continued
–77
1-kHz output, PO = 10 mW, RL = 32
0.014%
–80
1-kHz output, PO = 20 mW, RL = 32
0.01%
Total harmonic distortion
dB
–77
1-kHz output, PO = 20 mW, RL = 16
0.014%
–76
1-kHz output, PO = 30 mW, RL = 16
0.016%
Channel separation
1 kHz, 0-dB input
96
dB
Power-supply rejection ratio
217 Hz, 100 mVPP on AVDD, DRVDD1/2
48
dB
Mute attenuation
1-kHz output
107
dB
DIGITAL I/O
VIL
Input low level
IIL = +5 A
–0.3
0.3 × IOVDD
V
VIH
Input high level(5)
IIH = +5 A
0.7 × IOVDD
V
VOL
Output low level
IIH = 2 TTL loads
0.1 × IOVDD
V
VOH
Output high level
IOH = 2 TTL loads
0.8 × IOVDD
V
SUPPLY CURRENT, FS = 48 kHz
AVDD + DRVDD
FS = 48 kHz, PLL off,
3.0
Stereo line playback
headphone drivers off, DAC
mA
DVDD
2.0
Direct Mode
AVDD + DRVDD
2.3
Mono record
FS = 48 kHz, PLL and AGC off
mA
DVDD
1.1
AVDD + DRVDD
4.3
Stereo record
FS = 48 kHz, PLL and AGC off
mA
DVDD
1.3
AVDD + DRVDD
1.3
Additional power consumed
PLL
mA
when PLL is powered
DVDD
0.9
AVDD + DRVDD
Analog bypass to single-ended
1.5
Headphone amplifier
headphones, DAC and PLL off,
mA
DVDD
0
no signal applied
AVDD + DRVDD
All supply voltages applied, all
0.1
Power down
blocks programmed in lowest
A
DVDD
0.5
power state
(5)
When IOVDD < 1.6V, minimum VIH is 1.1 V.
Copyright 2006–2008, Texas Instruments Incorporated
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