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參數資料
| 型號： | TDA7370 |
| 廠商： | 意法半導體 |
| 元件分類： | 音頻放大器 |
| 英文描述： | QUAD POWER AMPLIFIER FOR CAR RADIO |
| 中文描述： | 四功率放大器汽車收音機 |
| 文件頁數： | 13/17頁 |
| 文件大?。?/td> | 259K |
| 代理商： | TDA7370 |
CLIPPINGDETECTOR
Figures 25 and 26 show an applicationusing the
TDA7370 in combination with the SGS-THOM-
SONaudioprocessorTDA7302.
The output clipping is recognized by the micro-
processor (in this application it is simulated by a
PC).
The detailed way to operate of the system is rep-
resented by the flow-chartof fig.24
The controller detects when the clipping is active
(minimun detection width fixed by a C29 = 12 nF
external capacitor), and reduces the volume (or
bass ) by steps of 2 dB (with a programmable
waiting time), untilno more clippingis detected.
Then the controllerwaits for a programmabletime
before increasing the volume again by step of 2
dB until clippingis again detectedor the panelse-
lectedvolume is reached.
Practical advantagesof this application is a better
sound quality deriving from operation under no
clipping conditions, which also means the avail-
ability of higherundistortedpower.
WHAT IS NEEDED FOR A DEMONSTRATION
- a XT or AT IBM compatible PC, supplied with
EGA card
- aSGS-THOMSONaudioprocessorapplicationdisk
- a TDA7302 + TDA7370 board
- a connector from audioprocessor board to PC
parallelport
GENERAL INFORMATION
In the application shown in figures 25 and 26 the
TDA7302 audioprocessorworks on PC XT or AT
IBM compatible.
Control is accomplished by serial bus ( S-bus or
I
2
C-bus or SPI bus) sent to the test board through
the PC parallel port.
The PC simulatesthe behaviourof the microproc-
essor in a real application (for example in a car
radio) and the buffer is necessary only in this ap-
plicationfor protectingthe PC.
Figure24:
Clipping DetectorControl Routine
TDA7370
13/17
相關PDF資料 |
PDF描述 |
|---|---|
| TDA7372A | Power Amplifier for Car Radio(用于汽車收音機的4×6W功率放大器) |
| TDA7372B | 4 x 6W Power Amplifier for Car Radio(4×6W用于汽車收音機的功率放大器) |
| TDA7374B | Dual Bridge Audio Amplifier for Car Radio(用于車載電臺的雙通道橋式音頻放大器) |
| TDA7374 | DUAL BRIDGE AUDIO AMPLIFIER FOR CAR RADIO |
| TDA7374BV | DUAL BRIDGE AUDIO AMPLIFIER FOR CAR RADIO |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TDA7370B | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD POWER AMPLIFIER FOR CAR RADIO |
| TDA7370BV | 功能描述:音頻放大器 18V Op 28V DC 36W 50V Supply 4.5A Out 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 |
| TDA7370V | 制造商:STMicroelectronics 功能描述:QUAD 6.5W AMP. - Rail/Tube |
| TDA7372A | 功能描述:音頻放大器 4X6W Power Amplifier 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 |
| TDA7372B | 功能描述:音頻放大器 4X6W Power Amplifier 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 |
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