參數(shù)資料
型號(hào)： TDA8944AJ
廠商： NXP SEMICONDUCTORS
元件分類： 音頻／視頻放大
英文描述： 7 W, 2 CHANNEL, AUDIO AMPLIFIER, PZIP17
封裝： PLASTIC, DIL-BENT-SIL, 17 PIN
文件頁(yè)數(shù)： 15/20頁(yè)
文件大小： 376K
代理商： TDA8944AJ
Philips Semiconductors
TDA8944AJ
2 x 7 W BTL audio amplier with DC gain control
Product data
Rev. 01 — 01 March 2002
4 of 20
9397 750 09433
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
8.
Functional description
The TDA8944AJ is a stereo BTL audio power amplier capable of delivering 2
× 7W
output power to an 8
load at THD = 10%, using a 12 V power supply and an
external heatsink. The gain of both ampliers can be adjusted through a DC control
voltage (pin GC). This feature can be used for volume control or a preset gain.
With the three-level MODE input the device can be switched from ‘standby’ to ‘mute’
and to ‘operating’ mode.
The TDA8944AJ outputs are protected by an internal thermal shutdown protection
mechanism and a short-circuit protection.
8.1 Input conguration
The TDA8944AJ inputs can be driven symmetrical (oating) as well as asymmetrical.
In the asymmetrical mode one input pin is connected via a capacitor to the signal
source and the other input is connected to the signal ground. This signal ground
should be as close as possible to the SVR (electrolytic) capacitor ground. Note that
the DC level of the input pins is half of the supply voltage VCC, so coupling capacitors
for both pins are necessary.
GC
13
DC gain control
OUT2
14
negative loudspeaker terminal 2
GND2
15
ground channel 2
VCC2
16
supply voltage channel 2
OUT2
+
17
positive loudspeaker terminal 2
Table 3:
Pin description…continued
Symbol
Pin
Description
Fig 3.
Asymmetrical input conguration.
handbook, halfpage
MGW589
power
ground
signal
ground
signal
source
IN
+
IN
SVR
VCC
相關(guān)PDF資料
PDF描述
TDA8946AJ 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PZIP17
TDA9103 HORIZ/VERT DEFLECTION IC, PDIP42
TDA9105 HORIZ/VERT DEFLECTION IC, PDIP42
TDA9109/SN HORIZ/VERT DEFLECTION IC, PDIP32
TDA9109/S HORIZ/VERT DEFLECTION IC, PDIP32
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA8944AJ/N2,112 功能描述:音頻放大器 2X6W AUDIO AMP. + VOL. 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
TDA8944J 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 x 7 W stereo Bridge Tied Load BTL audio amplifier
TDA8944J/N1 制造商:NXP Semiconductors 功能描述:AMP AUDIO PWR 7W STER 17SIL
TDA8944J/N1,112 功能描述:音頻放大器 7 WATT STEREO 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
TDA8944J/N1112 制造商:NXP Semiconductors 功能描述:IC AUDIO AMP AB 7W SIP-17
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)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(gòu)。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(gòu)。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(gòu)

我的聯(lián)系方式

*
*
*