參數(shù)資料
型號(hào): TDA8946AJ
廠商: NXP SEMICONDUCTORS
元件分類: 音頻/視頻放大
英文描述: 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PZIP17
封裝: PLASTIC, DIL-BENT-SIL, 17 PIN
文件頁數(shù): 15/20頁
文件大?。?/td> 376K
代理商: TDA8946AJ
Philips Semiconductors
TDA8946AJ
2 x 15 W BTL audio amplier with DC gain control
Product data
Rev. 01 — 01 March 2002
4 of 20
9397 750 09434
Koninklijke Philips Electronics N.V. 2002. All rights reserved.
8.
Functional description
The TDA8946AJ is a stereo BTL audio power amplier capable of delivering 2
× 15 W
output power to an 8
load at THD = 10%, using a 18 V power supply and an
external heatsink. The gain of both ampliers can be adjusted using 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 TDA8946AJ outputs are protected by an internal thermal shutdown protection
mechanism and a short-circuit protection.
8.1 Input conguration
The TDA8946AJ inputs can be driven symmetrical (oating) as well as asymmetrical.
In the asymmetrical mode (see Figure 3) one input pin is connected via a capacitor to
the signal source and the other input is connected to the signal ground. The 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…continued
Symbol
Pin
Description
Fig 3.
Asymmetrical input conguration.
handbook, halfpage
MGW610
power
ground
signal
ground
signal
source
IN
+
IN
SVR
VCC
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA8946AJ/N2,112 功能描述:音頻放大器 2X15W AUDIO AMP VOL CTRL 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
TDA8946J 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 x 15 W stereo Bridge Tied Load BTL audio amplifier
TDA8946J/N1,112 功能描述:音頻放大器 AUDIO AMP 2X15W 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
TDA8947J 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:4-channel audio amplifier (SE: 1 W to 25 W; BTL: 4 W to 50 W)
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