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器件3D模型￥ 5.942
TPA321D 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
音频放大器
封装:
SOIC-8
描述:
TEXAS INSTRUMENTS TPA321D 音频功率放大器, AB, 1通道, 700 mW, 2.5V 至 5.5V, SOIC, 8 引脚
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TPA321D数据手册
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ELECTRICAL CHARACTERISTICS
OPERATING CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
OPERATING CHARACTERISTICS
TPA321
SLOS312C – JUNE 2000 – REVISED JUNE 2004
at specified free-air temperature, V
DD
= 3.3 V, T
A
= 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
|V
OO
| Output offset voltage (measured differentially) SHUTDOWN = 0 V, R
L
= 8 Ω, R
F
= 10 kΩ 5 20 mV
PSRR Power supply rejection ratio V
DD
= 3.2 V to 3.4 V 85 dB
I
DD
Supply current (see Figure 3 ) SHUTDOWN = 0 V, R
F
= 10 kΩ 0.7 1.5 mA
I
DD(SD)
Supply current, shutdown mode (see Figure 4 ) SHUTDOWN = V
DD
, R
F
= 10 kΩ 0.15 5 µA
|I
IH
| High-level input current SHUTDOWN, V
DD
= 3.3 V, V
I
= 3.3 V 1 µA
|I
IL
| Low-level input current SHUTDOWN, V
DD
= 3.3 V, V
I
= 0 V 1 µA
V
DD
= 3.3 V, T
A
= 25°C, R
L
= 8 Ω
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
P
O
Output power
(1)
THD = 0.5%, See Figure 9 250 mW
P
O
= 250 mW, f = 20 Hz to 4 kHz,
THD + N Total harmonic distortion plus noise 1.3%
A
V
= -2 V/V, See Figure 7
Maximum output power bandwidth A
V
= -2 V/V, THD = 3%, See Figure 7 10 kHz
B
1
Unity-gain bandwidth Open loop, See Figure 15 1.4 MHz
Supply ripple rejection ratio f = 1 kHz, C
B
= 1 µF, See Figure 2 71 dB
A
V
= –1 V/V, C
B
= 0.1 µF,
V
n
Noise output voltage 15 µV(rms)
R
L
= 32 Ω , See Figure 19
(1) Output power is measured at the output terminals of the device at f = 1 kHz.
at specified free-air temperature, V
DD
= 5 V, T
A
= 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
|V
OO
| Output offset voltage (measured differentially) SHUTDOWN = 0 V, R
L
= 8 Ω, R
F
= 10 kΩ 5 20 mV
PSRR Power supply rejection ratio V
DD
= 4.9 V to 5.1 V 78 dB
I
DD
Supply current (see Figure 3 ) SHUTDOWN = 0 V, R
F
= 10 kΩ 0.7 1.5 mA
I
DD(SD)
Supply current, shutdown mode (see Figure 4 ) SHUTDOWN = V
DD
, R
F
= 10 kΩ 0.15 5 µA
|I
IH
| High-level input current SHUTDOWN, V
DD
= 5.5 V, V
I
= V
DD
1 µA
|I
IL
| Low-level input current SHUTDOWN, V
DD
= 5.5 V, V
I
= 0 V 1 µA
V
DD
= 5 V, T
A
= 25°C, R
L
= 8 Ω
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
P
O
Output power THD = 0.5%, See Figure 13 700 mW
P
O
= 350 mW, f = 20 Hz to 4 kHz, See
THD + N Total harmonic distortion plus noise 1%
A
V
= –2 V/V, Figure 11
Maximum output power bandwidth A
V
= –2 V/V, THD = 2%, See Figure 11 10 kHz
B
1
Unity-gain bandwidth Open loop, See Figure 16 1.4 MHz
Supply ripple rejection ratio f = 1 kHz, C
B
= 1 µF, See Figure 2 65 dB
A
V
= -1 V/V, C
B
= 0.1 µF,
V
n
Noise output voltage 15 µV(rms)
R
L
= 32 Ω , See Figure 20
3
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