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參數(shù)資料
| 型號： | TFA9841J |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 1-channel audio amplifier |
| 中文描述： | 7.5 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM9 |
| 封裝： | PLASTIC, SOT-523-1, DIL-BENT-SIL, 9 PIN |
| 文件頁數(shù)： | 10/17頁 |
| 文件大小： | 121K |
| 代理商： | TFA9841J |
Philips Semiconductors
TFA9841J
1-channel audio amplifier (1 x SE)
Preliminary data
Rev. 01 — 06 February 2004
10 of 17
9397 750 12014
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
13. Application information
Remark:
Because of switching inductive loads, the output voltage can rise beyond
the maximum supply voltage of 28 V. At high supply voltages, it is recommended to
use (Schottky) diodes to the supply voltage and ground.
13.1 Printed-circuit board
13.1.1
Layout and grounding
To obtain a high-level system performance, certain grounding techniques are
essential. The input reference grounds have to be tied with their respective source
grounds and must have separate tracks from the power ground tracks; this will
prevent the large (output) signal currents from interfering with the small AC input
signals. The small-signal ground tracks should be physically located as far as
possible from the power ground tracks. Supply and output tracks should be as wide
as possible for delivering maximum output power.
Fig 11. Typical SE application diagram.
mdb794
STANDBY
MUTE
ON
SHORT-CIRCUIT
AND
TEMPERATURE
PROTECTION
V
CC
V
REF
V
CC
9
IN1
OUT1
CIV
MODE
1
3
7
2
TFA9841J
220 nF
Vi
V
CC
1000
μ
F
470
μ
F
100 nF
R
L
4
+
0.5V
CC
SVR 6
5
GND
V
CC
2.2
μ
F
10
k
50
k
270
BC547
BC547
7.5 V
micro-
controller
47
μ
F
22
μ
F
1.5
k
100
k
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TFA9841J/N1,112 | 功能描述:音頻放大器 1 X 7W SINGLE ENDED 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 |
| TFA9842AJ | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:7.5 W stereo power amplifier with volume control |
| TFA9842AJ/N1 | 功能描述:音頻放大器 2X7.5W SE MPA W/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 |
| TFA9842AJ/N1,112 | 功能描述:音頻放大器 2X7.5W SE MPA W/VOL 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 |
| TFA9842BJ | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2-channel audio amplifier (SE: 1 W to 7.5 W) |
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