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參數資料
| 型號： | TPA4861DG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1.1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| 封裝： | GREEN, PLASTIC, MS-012AA, SOIC-8 |
| 文件頁數： | 20/26頁 |
| 文件大小： | 623K |
| 代理商： | TPA4861DG4 |
www.ti.com
ELECTRICAL CHARACTERISTICS
OPERATING CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
OPERATING CHARACTERISTICS
TPA4861
SLOS163C – SEPTEMBER 1996 – REVISED JUNE 2004
at specified free-air temperature, V
DD = 3.3 V (unless otherwise noted)
TPA4861
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
VOO
Output offset voltage
See(1)
20
mV
PSRR
Power supply rejection ratio (
V
DD/VOO)
VDD = 3.2 V to 3.4 V
75
dB
IDD
Supply current
2.5
mA
IDD(SD)
Supply current, shutdown
0.6
A
(1)
At 3 V < VDD < 5 V the dc output voltage is approximately VDD/2.
V
DD = 3.3 V, TA = 25°C, RL = 8
TPA4861
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
THD = 0.2%, f = 1 kHz,
AV = –2 V/V
400
mW
PO
Output power(1)
THD = 2%, f = 1 kHz,
AV = –2 V/V
500
mW
BOM
Maximum output power bandwidth
Gain = –10 V/V,
THD = 2%
20
kHz
B1
Unity-gain bandwidth
Open Loop
1.5
MHz
BTL
f = 1 kHz,
CB = 0.1 F
56
dB
Supply ripple rejection ratio
SE
f = 1 kHz,
CB = 0.1 F
30
dB
Vn
Noise output voltage(2)
Gain = –2 V/V
20
V
(1)
Output power is measured at the output terminals of the device.
(2)
Noise voltage is measured in a bandwidth of 20 Hz to 20 kHz.
at specified free-air temperature range, V
DD = 5 V (unless otherwise noted)
TPA4861
PARAMETER
TEST CONDITION
UNIT
MIN
TYP
MAX
VOO
Output offset voltage
See (1)
20
mV
PSRR
Power supply rejection ratio (
V
DD/VOO)
VDD = 4.9 V to 5.1 V
70
dB
IDD
Supply current
3.5
mA
IDD(SD)
Supply current, shutdown
0.6
A
(1)
At 3 V < VDD < 5 V the dc output voltage is approximately VDD/2.
V
DD = 5 V, TA = 25°C, RL = 8
TPA4861
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
THD = 0.2%, f = 1 kHz,
AV = -2 V/V
1000
mW
PO
Output power(1)
THD = 2%, f = 1 kHz,
AV = -2 V/V
1100
mW
BOM
Maximum output power bandwidth
Gain = -10 V/V,
THD = 2%
20
kHz
B1
Unity-gain bandwidth
Open Loop
1.5
MHz
BTL
f = 1 kHz,
CB = 0.1 F
56
dB
Supply ripple rejection ratio
SE
f = 1 kHz,
CB = 0.1 F
30
dB
Vn
Noise output voltage(2)
Gain = -2 V/V
20
V
(1)
Output power is measured at the output terminals of the device.
(2)
Noise voltage is measured in a bandwidth of 20 Hz to 20 kHz.
3
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