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參數(shù)資料
| 型號： | TDA8946 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 運動控制電子 |
| 英文描述： | 2 x 15 W stereo Bridge Tied Load BTL audio amplifier |
| 中文描述： | 2 x 15瓦的立體聲橋接負(fù)載橋接音頻放大器 |
| 文件頁數(shù)： | 14/23頁 |
| 文件大?。?/td> | 393K |
| 代理商： | TDA8946 |
Philips Semiconductors
TDA8946J
2 x 15 W stereo BTL audio amplifier
Product specification
Rev. 02 — 14 March 2000
14 of 23
9397 750 06863
Philips Electronics N.V. 2000. All rights reserved.
14. Application information
14.1 Printed-circuit board (PCB)
14.1.1
Layout and grounding
For a high system performance level 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 14. Application diagram.
a
3
16
OUT1
+
+
+
+
RL
8
Ri
45 k
1/2 VCC
Rs
Symmetrical
input
Ri
45 k
RL
8
OUT1
+
IN1
IN1
+
OUT2
OUT2
+
GND
MGU014
IN2
IN2
+
MODE
SVR
1
8
220 nF
6
9
12
10
11
4
14
17
15
2
+
VCC
1000
μ
F
100 nF
20 k
20 k
10
μ
F
+
+
+
+
Ri
45 k
1/2 VCC
Ri
45 k
30 k
30 k
30 k
R
C1
C2
R
VCC
VCC
signal
GND
TDA8946J
signal
GND
SHORT CIRCUIT
AND
TEMPERATURE
PROTECTION
STANDBY/
MUTE LOGIC
MICROCONTROLLER
Standby
Mute
On
MODE
0
0
1
0
1
0
C1
C2
220 nF
1.5
nF
1.5
nF
Ci
Rs
Asymmetrical
input
220 nF
220 nF
Ci
1/2 VCC
1/2 VCC
1/2 VCC
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA8946AJ | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 x 15 W BTL audio amplifier with DC gain control |
| 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) |
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