TLV320DAC32_16 Datasheet, PDF (5/70 Pages) Texas Instruments – LOW POWER STEREO AUDIO DAC FOR PORTABLE AUDIO/TELEPHONY

TLV320DAC32
www.ti.com........................................................................................................................................ SLAS506B – NOVEMBER 2006 – REVISED DECEMBER 2008
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
AVDD_DAC,
DRVDD ⁽¹⁾
DVDD ⁽¹⁾
IOVDD ⁽¹⁾
V_I
T_A
Analog supply voltage
Digital core supply voltage
Digital I/O supply voltage
Analog full-scale 0-dB input voltage (DRVDD = 3.3 V)
Stereo headphone-output load resistance
Digital output load capacitance
Operating free-air temperature
MIN NOM
2.7
3.3
1.525
1.1
16
–40
1.8
1.8
0.707
10
(1) Analog voltage values are with respect to AVSS_DAC, DRVSS; digital voltage values are with respect to IOVSS.
MAX
3.6
UNIT
V
1.95
3.6
85
V
V
V_RMS
Ω
pF
C
ELECTRICAL CHARACTERISTICS
At 25C, AVDD_DAC, DRVDD, IOVDD = 3.3 V, DVDD = 1.8 V, Fs = 48 kHz, 16-bit audio data (unless otherwise noted)
PARAMETER
ANALOG MIXER
Input resistance
Input capacitance
Input volume control
minimum attenuation
setting
Input volume control
maximum attenuation
setting
Input volume control
attenuation step size
MICROPHONE BIAS
LINE inputs
LINE inputs
TEST CONDITIONS
Bias voltage
Programmable settings, load = 750 Ω
Current sourcing
DAC DIGITAL
INTERPOLATION
FILTER
Passband
Passband ripple
Transition band
Stopband
Stopband attenuation
Group delay
SINGLE-ENDED STEREO
HEADPHONE DRIVER
0-dB full-scale output
voltage
Programmable output
common mode voltage
(applicable to Line
Outputs also)
2.5-V Setting
Fs = 48 kHz
High-pass filter disabled
High-pass filter disabled
AC-coupled output configuration⁽¹⁾
0-dB Gain to high power outputs. Output
common-mode voltage setting = 1.65 V
First option
Second option
Third option
Fourth option
MIN
TYP
MAX UNIT
100
kΩ
10
pF
0
dB
78
dB
0.5
dB
2.0
2.25
2.5
DRVDD-
0.2
2.75 _V
4 mA
0.45Ó¦s
0.55Ó¦s
0.45Ó¦s Hz
0.06
dB
0.55Ó¦s Hz
7.5Ó¦s Hz
65
dB
21/Fs
Sec
0.65
1.35
1.50
1.65
1.8
V_RMS
V
(1) 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.
Copyright © 2006–2008, Texas Instruments Incorporated
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