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參數資料
| 型號： | TPA6030A4 |
| 英文描述： | 3-W Stereo Audio Power Amplifier with Advanced DC Volume Control |
| 中文描述： | 3 - W立體聲音頻功率放大器與先進的直流音量控制 |
| 文件頁數： | 23/33頁 |
| 文件大?。?/td> | 469K |
| 代理商： | TPA6030A4 |
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TPA6011A4
SLOS392
–
FEBRUARY 2002
23
www.ti.com
APPLICATION INFORMATION
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. If an additional resistor is connected from the input pin of
the amplifier to ground, as shown in the figure below, the variation of the cutoff frequency is much reduced.
C
IN
Ri
Rf
Input Signal
Figure 34. Resistor on Input for Cut-Off Frequency
The input resistance at each gain setting is given in Figure 34.
The
–
3-dB frequency can be calculated using equation 1.
(1)
3 dB
1
2 CRi
input capacitor, C
i
In the typical application an input capacitor (C
i
) is required to allow the amplifier to bias the input signal to the
proper dc level for optimum operation. In this case, C
i
and the input impedance of the amplifier (R
i
) form a
high-pass filter with the corner frequency determined in equation 2.
f
c(highpass)
1
2 R
i
C
i
–
3 dB
fc
(2)
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| TPA6111A2DR | Rotary Keylock Switch; Key Removal Position:1, 2; Circuitry:SPST; Indexing:90; Contact Current Max:4A; Contact Rating:4A; Leaded Process Compatible:Yes; Mounting Type:Solder Lug; No. of Switch Positions:2; Number of Positions:2 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA6030A4_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-2 STEREO AUDIO POWER AMPLIFIER WITH ADVANCED DC VOLUME CONTROL |
| TPA6030A4EVM | 功能描述:音頻 IC 開發(fā)工具 TPA6030A4 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 |
| TPA6030A4PWP | 功能描述:音頻放大器 Wide Supply Voltage Low Power Class-AB 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 |
| TPA6030A4PWPG4 | 功能描述:音頻放大器 Wide Supply Voltage Low Power Class-AB 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 |
| TPA6030A4PWPR | 功能描述:音頻放大器 Wide Supply Voltage Low Power Class-AB 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 |
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