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| 型號(hào)： | TPA0162PWPR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24 |
| 封裝： | GREEN, PLASTIC, HTSSOP-24 |
| 文件頁(yè)數(shù)： | 10/34頁(yè) |
| 文件大?。?/td> | 812K |
| 代理商： | TPA0162PWPR |
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CLK
VOLUME
4 cycles per step
UP
INPUT RESISTANCE
C
R
IN
Ri
Rf
Input Signal
–3 dB +
1
2p C R
Ri
(2)
TPA0162
SLOS249E – JUNE 1999 – REVISED SEPTEMBER 2004
Figure 33. External Clock (4 Cycles Per Volume Change)
The gain is set 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 cut-off
frequency also changes by over six times. Connecting an additional resistor from the input pin of the amplifier to
ground, as shown in Figure 34, reduces the cutoff-frequency variation.
Figure 34. Resistor on Input for Cut-Off Frequency
The input resistance at each gain setting is given in the graph for Input Impedance vs Gain in the Typical
Characteristics section.
The –3-dB frequency can be calculated using Equation 2.
To increase filter accuracy, increase the value of the capacitor and decrease the value of the resistor to ground.
In addition, the order of the filter can be increased.
18
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| TPA0162PWPRG4 | 功能描述:音頻放大器 2W Stereo APA With Dig Volume Control RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA0172 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2-W STEREO AUDIO POWER AMPLIFIER WITH I2C BUS |
| TPA0172EVM | 功能描述:音頻 IC 開(kāi)發(fā)工具 TPA0172 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| TPA0172PWP | 功能描述:音頻放大器 2W Stereo M RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA0172PWPG4 | 功能描述:音頻放大器 Stereo Class-AB RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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