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參數資料
| 型號： | 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 |
| 文件頁數： | 1/20頁 |
| 文件大小： | 376K |
| 代理商： | TDA8944AJ |
TDA8944AJ
2 x 7 W BTL audio amplier with DC gain control
Rev. 01 — 01 March 2002
Product data
M3D541
1.
General description
The TDA8944AJ is a dual-channel audio power amplier with DC gain control. It has
an output power of 2
× 7 W at an 8 load and a 12 V supply. The circuit contains two
Bridge-Tied Load (BTL) ampliers with an all-NPN output stage and standby/mute
logic. The overall gain can be adjusted from +30 dB down to
50 dB using a DC
control voltage. This feature can be used for volume control or a preset gain.
The TDA8944AJ comes in a 17-pin DIL-bent-SIL (DBS) power package and is pin
compatible with the TDA8944J.
2.
Features
s Gain/volume adjustment via a DC control pin
s Soft clipping
s Operating at a low supply voltage
s Standby and mute mode
s No on/off switching plops
s Low standby current
s High supply voltage ripple rejection
s Outputs short-circuit protected to ground, supply and across the load
s Thermally protected
s Printed-circuit board compatible with TDA8946AJ and TDA8580J.
3.
Applications
s Mains fed applications (e.g. TV sound)
s PC audio
s Portable audio.
4.
Quick reference data
Table 1:
Quick reference data
Symbol Parameter
Conditions
Min
Typ
Max
Unit
VCC
supply voltage
4.5
12
18
V
Iq
quiescent supply current
VCC =12V; RL = ∞
-
4050mA
Istb
standby supply current
-
10
A
Po
output power
THD = 10%; RL =8 ;
VCC =12V
6
7
-
W
THD
total harmonic distortion
Po =1W
-
0.07
0.5
%
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
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