參數(shù)資料
型號(hào)： TPA0253DGQRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 音頻／視頻放大
英文描述： 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10
封裝： GREEN, PLASTIC, MSOP-10
文件頁(yè)數(shù)： 7/12頁(yè)
文件大?。?/td> 485K
代理商： TPA0253DGQRG4
TPA0253
1-W MONO AUDIO POWER AMPLIFIER
WITH HEADPHONE DRIVE
SLOS280D – JANUARY 2000 – REVISED NOVEMBER 2002
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
MIN
MAX
UNIT
Supply voltage, VDD
2.5
5.5
V
ST/MN
VDD = 3 V
2.7
High-level input voltage, VIH
ST/MN
VDD = 5 V
4.5
V
High level in ut voltage, VIH
SHUTDOWN
2
V
ST/MN
VDD = 3 V
1.65
Low-level input voltage, VIL
ST/MN
VDD = 5 V
2.75
V
Low level in ut voltage, VIL
SHUTDOWN
0.8
V
Operating free-air temperature, TA
– 40
85
°C
electrical characteristics at specified free-air temperature, VDD = 3 V, TA = 25°C (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
|VOO|
Output offset voltage (measured differentially)
RL = 4 , ST/MN = 0 V, SHUTDOWN = 2 V
30
mV
PSRR
Power supply rejection ratio
VDD = 2.9 V to 3.1 V, BTL mode
65
dB
|I
|
High level input current
SHUTDOWN, VDD = 3.3 V,
VI = VDD
1
A
|IIH|
High-level input current
ST/MN, VDD = 3.3 V,
VI = VDD
1
A
|I |
Low level input current
SHUTDOWN, VDD = 3.3 V,
VI = 0 V
1
A
|IIL|
Low-level input current
ST/MN, VDD = 3.3 V,
VI = 0 V
1
A
ZI
Input impedance
50
k
IDD
Supply current
VDD = 2.5 V, SHUTDOWN = 2 V
2.7
4
mA
IDD(SD)
Supply current, shutdown mode
SHUTDOWN = 0 V
1
10
A
RF
Feedback resistor
VDD = 2.5 V, RL = 4 , ST/MN = 1.375 V,
SHUTDOWN = 2 V
47
50
57
k
operating characteristics, VDD = 3 V, TA = 25°C, RL = 8 , f = 1 kHz (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
THD = 0.1%,
BTL mode,
Gain = 14 dB
300
PO
Output power, see Note 1
THD = 0.1%
Gain = 1.9 dB
SE mode,
RL = 32
30
mW
THD + N
Total harmonic distortion plus
noise
PO = 250 mW,
f = 20 Hz to 20 kHz
0.2%
BOM
Maximum output power bandwidth
Gain = 1.9 dB,
THD = 2%
20
kHz
Supple ripple rejection ratio
f
1 kHz
C0 47 F
BTL mode
46
dB
Supple ripple rejection ratio
f = 1 kHz,
C(BYP) = 0.47 F
SE mode
68
dB
V
Noise output voltage
C(BYP) 047 F
f=20Hzto20kHz
BTL mode
83
VRMS
Vn
Noise output voltage
C(BYP) = 0.47 F,
f = 20 Hz to 20 kHz
SE mode
33
VRMS
NOTE 1: Output power is measured at the output terminals of the device at f = 1 kHz.
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