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參數(shù)資料
| 型號(hào)： | TPA2001D1PWRG4 |
| 廠(chǎng)商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 音頻／視頻放大 |
| 英文描述： | 1 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO16 |
| 封裝： | GREEN, PLASTIC, TSSOP-16 |
| 文件頁(yè)數(shù)： | 16/17頁(yè) |
| 文件大?。?/td> | 443K |
| 代理商： | TPA2001D1PWRG4 |
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TPA2001D1
1-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER
SLOS338D – SEPTEMBER 2000 – REVISED DECEMBER 2002
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
Table 1. Gain Settings
GAIN1
GAIN0
AMPLIFIER GAIN
(dB)
INPUT IMPEDANCE
(k
)
GAIN1
GAIN0
TYP
0
6
104
0
1
12
74
1
0
18
44
1
23.5
24
input resistance
Each gain setting is achieved by varying the input resistance of the amplifier, which can range from its smallest
value to over six times that value. As a result, if a single capacitor is used in the input high-pass filter, the –3dB
or cutoff frequency also changes by over six times.
Ci
IN
ZI
ZF
Input
Signal
The –3 dB frequency can be calculated using equation 4.
(4)
fc +
1
2
p Z
I
C
i
input capacitor, Ci
In the typical application an input capacitor (Ci) is required to allow the amplifier to bias the input signal to the
proper dc level for optimum operation. In this case, Ci and the input impedance of the amplifier (ZI) form a
high-pass filter with the corner frequency determined in equation 5.
fc +
1
2
pZ
I
C
i
–3 dB
fc
(5)
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| TPA2001D2 | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:1-W FILTERLESS STEREO CLASS-D AUDIO POWER AMPLIFIER |
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| TPA2001D2PWP | 制造商:Texas Instruments 功能描述:AUDIO POWER AMPLIFIER IC NUMBER OF CIRCU |
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