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参数资料
| 型号： | TDA7370 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 6.5 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM15 |
| 封装： | MULTIWATT-15 |
| 文件页数： | 5/17页 |
| 文件大小： | 7247K |
| 代理商： | TDA7370 |
CLIPPING DETECTOR
Figures 25 and 26 show an application using the
TDA7370 in combination with the SGS-THOM-
SON audioprocessor TDA7302.
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-chart of 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), until no more clipping is detected.
Then the controller waits for a programmable time
before increasing the volume again by step of 2
dB until clipping is again detected or the panel se-
lected volume is reached.
Practical advantages of this application is a better
sound quality deriving from operation under no
clipping conditions, which also means the avail-
ability of higher undistorted power.
WHAT IS NEEDED FOR A DEMONSTRATION
- a XT or AT IBM compatible PC, supplied with
EGA card
- a SGS-THOMSON audioprocessor application disk
- a TDA 7302 + TDA7370 board
- a connector from audioprocessor board to PC
parallel port
GENERAL INFORMATION
In the application shown in figures 25 and 26 the
TDA7302 audioprocessor works on PC XT or AT
IBM compatible.
Control is accomplished by serial bus ( S-bus or
I
2C-bus or SPI bus) sent to the test board through
the PC parallel port.
The PC simulates the behaviour of the microproc-
essor in a real application (for example in a car
radio) and the buffer is necessary only in this ap-
plication for protecting the PC.
Figure 24: Clipping Detector Control Routine
TDA7370
13/17
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA7370B | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:QUAD POWER AMPLIFIER FOR CAR RADIO |
| TDA7370BV | 功能描述:音频放大器 18V Op 28V DC 36W 50V Supply 4.5A Out RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TDA7370V | 制造商:STMicroelectronics 功能描述:QUAD 6.5W AMP. - Rail/Tube |
| TDA7372A | 功能描述:音频放大器 4X6W Power Amplifier RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TDA7372B | 功能描述:音频放大器 4X6W Power Amplifier RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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