參數(shù)資料
型號(hào)： TLV320DAC26IRHBG4
英文描述： LOW POWER STEREO AUDIO DAC WITH HEADPHONE/SPEAKER AMPLIFIER
中文描述： 低功耗立體聲音頻DAC耳機(jī)/揚(yáng)聲器放大器
文件頁(yè)數(shù)： 3/46頁(yè)
文件大?。?/td> 452K
代理商： TLV320DAC26IRHBG4
SLAS428 AUGUST 2004
www.ti.com
3
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted(1)(2)
UNITS
AVDD to AVSS
0.3 V to 3.9 V
DRVDD to DRVSS
0.3 V to 3.9 V
IOVDD to DVSS
0.3 V to 3.9 V
DVDD to DVSS
0.3 V to 2.5 V
AVDD to DRVDD
0.1 V to 0.1 V
AVSS to DRVSS to DVSS
0.1 V to 0.1 V
Analog inputs to AVSS
0.3 V to AVDD + 0.3 V
Digital input voltage to DVSS
0.3 V to IOVDD + 0.3 V
40
°
C to 85
°
C
65
°
C to 105
°
C
105
°
C
(TJ Max TA)/
θ
JA
123
°
C/W
215
°
C
220
°
C
Operating temperature range
Storage temperature range
Junction temperature (TJ Max)
QFN package
Power dissipation
θ
JA Thermal impedance
Soldering vapor phase (60 sec)
Lead temperature
Infrared (15 sec)
(1)Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2)If the ’DAC26 is used to drive high power levels to an 8-
load for extended intervals at ambient temperatures above 70
°
C, multiple vias should be
used to electrically and thermally connect the thermal pad on the QFN package to an internal heat-dissipating ground plane on the user’s PCB.
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
PARAMETER
MICROPHONE INPUT
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Input resistance
20
k
pF
Input capacitance
10
MICROPHONE BIAS
Voltage
D4 = 0 control register 05H/Page2
2.5
V
D4 = 1 control register 05H/Page2
2.0
V
Sourcing current
4.7
mA
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