參數(shù)資料
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
文件頁數(shù)： 19/34頁
文件大?。?/td> 812K
代理商： TPA0162PWPR
www.ti.com
ROUT+
21
R
MUX
RHPIN
RLINEIN
+
23
20
8
RIN
ROUT
16
+
1 k
COUTR
330
F
100 k
SE/BTL
15
100 k
VDD
32-Step
Volume
Control
32-Step
Volume
Control
PC-BEEP OPERATION
C
PCB w
1
2p
PCB
(100 kW)
(14)
TPA0162
SLOS249E – JUNE 1999 – REVISED SEPTEMBER 2004
Figure 38. TPA0162 Resistor Divider Network Circuit
Using a readily-available 1/8-in. (3,5 mm) stereo headphone jack, the control switch is closed when no plug is
inserted. When closed, the 100-k
/1-k divider pulls the SE/BTL input low. When a plug is inserted, the 1-k
resistor is disconnected and the SE/BTL input is pulled high. When the input goes high, the OUT– amplifier is
shut down, muting the speaker (virtually open-circuits the speaker). The OUT+ amplifier then drives through the
output capacitor (CO) into the headphone jack.
The PC-BEEP input allows a system beep to be sent directly from a computer through the amplifier to the
speakers with few external components. The input is activated automatically. When the PC-BEEP input is active,
both LINEIN and HPIN inputs are deselected, and both the left and right channels are driven in BTL mode with
the signal from PC-BEEP. The gain from the PC-BEEP input to the speakers is fixed at 0.3 V/V and is
independent of the volume setting. When the PC-BEEP input is deselected, the amplifier returns to the previous
operating mode and volume setting. Furthermore, if the amplifier is in shutdown mode, activating PC-BEEP takes
the device out of shutdown, outputs the PC-BEEP signal, then returns the amplifier to shutdown mode.
When PCB ENABLE is held low, the amplifier automatically switches to PC-BEEP mode after detecting a valid
signal at the PC-BEEP input. The preferred input signal is a square wave or pulse train. To be accurately
detected, the signal must have a minimum of 1.5-Vpp amplitude, rise and fall times of less than 0.1 s and a
minimum of eight rising edges. When the signal is no longer detected, the amplifier returns to its previous
operating mode and volume setting.
To ac-couple the PC-BEEP input, choose a coupling-capacitor value to satisfy Equation 14.
The PC-BEEP input can also be dc-coupled to avoid using this coupling capacitor. The pin normally rests at
midrail when no signal is present.
26
相關(guān)PDF資料
PDF描述
TPA0162PWP 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24
TPA0162PWPRG4 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24
TPA0162PWPG4 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24
TPA0172PWPR 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24
TPA0172PWP 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO24
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*