參數(shù)資料
型號(hào)： TPA0312PWPR
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)： 21/36頁(yè)
文件大?。?/td> 791K
代理商： TPA0312PWPR
www.ti.com
INPUT MUX OPERATION
ROUT+
21
R
MUX
RHPIN
RLINEIN
+
23
20
8
RIN
ROUT 16
+
SE/BTL
15
Volume
Control
Volume
Control
2
HP/LINE
CIRHP
0.47
F
Right
Headphone
Input Signal
CIRLINE
0.47
F
Right Line
Input Signal
CRIN
0.47
F
TPA0312
SLOS335A – DECEMBER 2000 – REVISED OCTOBER 2004
Figure 43. TPA0312 Example Input MUX Circuit
The TPA0312 offers the capability for the designer to use separate headphone inputs (RHPIN, LHPIN) and line
inputs (RLINEIN, LLINEIN). The inputs can be different if the input signal is single-ended. If using a differential
input signal, the inputs must be the same because the inputs share a common RIN, LIN. Although the typical
application in Figure 37 shows the input mux control signal HP/LINE tied to SE/BTL, that configuration is not
required. The input mux can be used to select between two inputs that are used in both SE and BTL modes.
If using the TPA0312 with a single-ended input, the RIN and LIN terminals must be tied through a capacitor to
ground, as shown in Figure 43. RIN and LIN must not be tied to bypass or an offset occurs on the output causing
the device to pop when turning on and off.
Input coupling capacitors can be eliminated when using differential inputs, but are used to obtain maximum
output power. If the input capacitors are eliminated, the dc offset must match the voltage on BYPASS or the
output power is limited.
28
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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TPA032D01 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-W MONO CLASS-D AUDIO POWER AMPLIFIER
TPA032D01_07 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-W MONO CLASS-D AUDIO POWER AMPLIFIER
TPA032D01DCA 功能描述:音頻放大器 10W Monaur 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
TPA032D01DCA 制造商:Texas Instruments 功能描述:IC SM POWER AMP CLASS-D AUDIO
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