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參數(shù)資料
| 型號： | TPA0252PWPR |
| 元件分類： | 音頻放大器 |
| 英文描述： | Toggle |
| 中文描述： | 放大器。其他 |
| 文件頁數(shù)： | 36/42頁 |
| 文件大?。?/td> | 806K |
| 代理商： | TPA0252PWPR |
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TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205B – FEBRUARY 1998 – REVISED DECEMBER 2000
36
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
Input MUX operation
Working in concert with the SE/BTL feature, the HP/LINE MUX feature gives the audio designer the flexibility
of a multichip design in a single IC (see Figure 69). The primary function of the MUX is to allow different gain
settings for BTL versus SE mode. Speakers typically require approximately a factor of 10 more gain for similar
volume listening levels as compared to headphones. To achieve headphone and speaker listening parity, the
resistor values would need to be set as follows:
(15)
SE Gain
(HP)
R
F(HP)
R
I(HP)
If, for example R
I(HP)
= 10 k
and R
F(HP)
= 10 k
then SE Gain
(HP)
= –1
(16)
BTL Gain
(LINE)
2
R
F(LINE)
R
I(LINE)
If, for example R
I(LINE)
= 10 k
and R
F(LINE)
= 50 k
then BTL Gain
(LINE)
= –10
ROUT+
ROUT–
CIRLINERIRLINE
15
22
CIRHP
RIRHP
RFRHP
MUX
RLINE IN
RHP IN
SE/BTL
HP/LINE
VDD
16
14
+
–
Left Channel
20
21
Right Channel
MID
RFRLINE
0.1
μ
F
Figure 69. TPA0202 Example Input MUX Circuit
Another advantage of using the MUX feature is setting the gain of the headphone channel to –1. This provides
the optimum distortion performance into the headphones where clear sound is more important. Refer to the
SE/BTL operation section for a description of the headphone jack control circuit.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPA0253DGQR | AUDIO AMPLIFIER|SINGLE|CMOS|TSSOP|10PIN|PLASTIC |
| TPA2000D1PWR | Single Audio Amplifier |
| TPA2000D2PW | Amplifier. Other |
| TPA2000D2PWPR | AUDIO AMPLIFIER|DUAL|CMOS|TSSOP|24PIN|PLASTIC |
| TPA2000D2PWR | Switches, Microswitch; Circuitry:SPDT; Current Rating:1A; Features:Pin Plunger Actuator; Leaded Process Compatible:Yes; Mounting Type:Screw Terminal; Switch Function:SPDT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPA0252PWPRG4 | 功能描述:音頻放大器 Stereo Class-AB w/Ster Hdphn Drive 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 |
| TPA0253 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE |
| TPA0253_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-W MONO AUDIO POWER AMPLIFIER WITH HEADPHONE DRIVE |
| TPA0253DGQ | 功能描述:音頻放大器 Mono Lo-Pwr 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 |
| TPA0253DGQ | 制造商:Texas Instruments 功能描述:IC SM POWER AMP CLASS-AB AUDIO |
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