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參數(shù)資料
| 型號(hào)： | TDA8947J |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 4-channel audio amplifier (SE: 1 W to 25 W; BTL: 4 W to 50 W) |
| 中文描述： | 8.5 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM17 |
| 封裝： | PLASTIC, SOT-243-1, DIL-BENT-SIL, 17 PIN |
| 文件頁(yè)數(shù)： | 1/24頁(yè) |
| 文件大?。?/td> | 200K |
| 代理商： | TDA8947J |
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TDA8947J
4-channel audio amplifier (SE: 1 W to 25 W; BTL: 4 W to 50 W)
Rev. 01 — 06 February 2004
Preliminary data
1.
General description
The TDA8947J contains four identical audio power amplifiers. The TDA8947J can be
used as: four Single-Ended (SE) channels with a fixed gain of 26 dB, two times
Bridge-Tied Load (BTL) channels with a fixed gain of 32 dB or two times SE channels
(26 dB gain) plus one BTL channel (32 dB gain) operating as a 2.1 system.
The TDA8947J comes in a 17-pin Dil-Bent-Sil (DBS) power package. The TDA8947J
is pin compatible with the TDA8944AJ and TDA8946AJ.
The TDA8947J contains a unique protection circuit that is solely based on multiple
temperature measurements inside the chip. This gives maximum output power for all
supply voltages and load conditions with no unnecessary audio holes. Almost any
supply voltage and load impedance combination can be made as long as thermal
boundary conditions (number of channels used, external heatsink and ambient
temperature) allow it.
2.
Features
I
SE: 1 W to 25 W, BTL: 4 W to 50 W operation possibility (2.1 system)
I
Soft clipping
I
Standby and mute mode
I
No on/off switching plops
I
Low standby current
I
High supply voltage ripple rejection
I
Outputs short-circuit protected to ground, supply and across the load
I
Thermally protected
I
Pin compatible with TDA8944AJ and TDA8946AJ.
3.
Applications
I
Television
I
PC speakers
I
Boom box
I
Mini and micro audio receivers.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA8947J/N3,112 | 功能描述:音頻放大器 3/4 CHANNEL AUD AMP 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 |
| TDA8948J | 功能描述:音頻放大器 4X10W MPA 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 |
| TDA8948J/N1,112 | 功能描述:音頻放大器 4X10W MPA 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 |
| TDA8950 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 X 150 W class-D power amplifier |
| TDA8950J | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 X 150 W class-D power amplifier |
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