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參數資料
| 型號： | TPA3001D1PWPG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 20 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
| 封裝： | GREEN, PLASTIC, HTSSOP-24 |
| 文件頁數： | 13/28頁 |
| 文件大小： | 504K |
| 代理商： | TPA3001D1PWPG4 |
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Ci
IN
Zi
Zf
Input
Signal
f +
1
2p Z
iCi
fc +
1
2 p Z
i
C
i
3 dB
fc
C
i +
1
2p Z
i fc
SLOS398E – DECEMBER 2002 – REVISED AUGUST 2010
www.ti.com
Table 1. Gain Settings
AMPLIFIER GAIN
INPUT IMPEDANCE
(dB)
(k
)
GAIN1
GAIN0
TYP
0
12
241
0
1
18
168
1
0
23.6
104
1
36
33
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 –3-dB
or cutoff frequency also changes by over six times.
(5)
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 6.
(6)
The value of CI is important, as it directly affects the bass (low frequency) performance of the circuit. Consider
the example where ZI is 241 k and the specification calls for a flat bass response down to 20 Hz. Equation 6 is
reconfigured as Equation 7.
(7)
20
Copyright 2002–2010, Texas Instruments Incorporated
Product Folder Link(s): TPA3001D1
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| TPA3001D1PWPR | 功能描述:音頻放大器 Mono High Power Filter-Free Class-D RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA3001D1PWPRG4 | 功能描述:音頻放大器 Mono High Power Filter-Free Class-D RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA3002D2 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:9-W STEREO CLASS-D AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL |
| TPA3002D2_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:9-W STEREO CLASS-D AUDIO POWER AMPLFIER WITH DC VOLUME CONTROL |
| TPA3002D2EVM | 功能描述:音頻 IC 開發工具 TPA3002D2 Eval Mod RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
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