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参数资料
| 型号： | TDA7384A |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 26 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM25 |
| 封装： | FLEXIWATT-25 |
| 文件页数： | 3/14页 |
| 文件大小： | 259K |
| 代理商： | TDA7384A |
TDA7384A
Application hints
3
Application hints
Referred to the circuit of Figure 3.
3.1
SVR
Besides its contribution to the ripple rejection, the SVR capacitor governs the turn ON/OFF
time sequence and, consequently, plays an essential role in the pop optimization during
ON/OFF transients.
To conveniently serve both needs, its minimum recommended value is 10f.
3.2
Input stage
The TDA7384A’s inputs are ground-compatible and can stand very high input signals
(± 8 Vpk) without any performances degradation.
If the standard value for the input capacitors (0.1 F) is adopted, the low frequency cut-off
will amount to 16 Hz.
3.3
Standby and muting
Standby and muting facilities are both 3.3 V CMOS-compatible. If unused, a straight
connection to Vs of their respective pins would be admissible.
Conventional/low-power transistors can be employed to drive muting and stand-by pins in
absence of true CMOS ports or microprocessors. R-C cells have always to be used in order
to smooth down the transitions for preventing any audible transient noises.
Since a DC current of about 10 A normally flows out of pin 22, the maximum allowable
muting-series resistance (R2) is 70 kΩ, which is sufficiently high to permit a muting capacitor
reasonably small (about 1F).
If R2 is higher than recommended, the involved risk will be that the voltage at pin 23 may rise
to above the 1.5 V threshold voltage and the device will consequently fail to turn OFF when
the mute line is brought down.
About the stand-by, the time constant to be assigned in order to obtain a virtually pop-free
transition has to be slower than 2.5 V/ms.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA7384A_07 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:4 x 42W quad bridge car radio amplifier |
| TDA7384B | 功能描述:音频放大器 Car-Radio Amplifier 18V Op 28V DC 36W 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 |
| TDA7385 | 功能描述:音频放大器 4X30W Quad Brdg Amp 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 |
| TDA7385H | 功能描述:音频放大器 Car-Radio Amplifier 18V Op 28V DC 36W 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 |
| TDA7386 | 功能描述:音频放大器 4X40W Quad Brdg Amp 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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