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參數資料
| 型號： | MUA08A |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mode |
| 中文描述： | 在3.3V電源音頻功率放大器265mW的關斷模式 |
| 文件頁數： | 5/19頁 |
| 文件大小： | 772K |
| 代理商： | MUA08A |
External Components Description
(Figure 1)
Components
1.
Functional Description
R
i
Inverting input resistance which sets the closed-loop gain in conjunction with R
F
. This resistor also forms a
high pass filter with C
i
at f
c
= 1/(2
π
R
i
C
I
).
Input coupling capacitor which blocks the DC voltage at the amplifier’s input terminals. Also creates a
highpass filter with R
i
at f
c
= 1/(2
π
R
i
C
i
). Refer to the section,
Proper Selection of External
Components,
for an explanation of how to determine the value of C
i
.
Feedback resistance which sets the closed-loop gain in conjunction with R
i
.
Supply bypass capacitor which provides power supply filtering. Refer to the
Power Supply Bypassing
section for information concerning proper placement and selection of the supply bypass capacitor.
Bypass pin capacitor which provides half-supply filtering. Refer to the
Proper Selection of External
Components
for information concerning proper placement and selection of C
B
.
2.
C
i
3.
4.
R
F
C
S
5.
C
B
Typical Performance Characteristics
THD+N vs Frequency
DS200064-30
THD+N vs Frequency
DS200064-31
THD+N vs Frequency
DS200064-32
THD+N vs Frequency
DS200064-33
L
www.national.com
5
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