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参数资料
| 型号： | TDA2030AH |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 18 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM5 |
| 封装： | PENTAWATT-5 |
| 文件页数： | 4/15页 |
| 文件大小： | 1403K |
| 代理商： | TDA2030AH |
In the case of the sawtooth in Figure 25 the mean
level was increased by the TIM distortion, for a
sawtooth in the other direction the opposite is true.
The result is an AC signal at the output whole
peak-to-peak value is the TIM voltage, which can
be measured easily with an oscilloscope. If the
peak-to-peak value of the signal and the peak-to-
peak of the inverting sawtooth are measured, the
TIM can be found very simply from:
TIM
=
VOUT
Vsawtooth
100
In Figure 25 the experimental results are shown for
the 30W amplifier using the TDA2030A as a driver
and a low-cost complementary pair. A simple RC
filter on the input of the amplifier to limit the maxi-
mum signal slope (SS) is an effective way to reduce
TIM.
Figure 25 : TIM Distortion versus Output Power
The diagram of Figure 26 originated by SGS-
THOMSON can be used to find the Slew-Rate (SR)
required for a given output power or voltage and a
TIM design target.
For example if an anti-TIM filter with a cutoff at
30kHz is used and the max. peak-to-peak output
voltage is 20V then, referring to the diagram, a
Slew-Rate of 6V/
s is necessary for 0.1% TIM.
As shown Slew-Rates of above 10V/
s do not
contribute to a further reduction in TIM.
Slew-Rates of 100/
s are not only useless but also
a disadvantage in Hi-Fi audio amplifiers because
they tend to turn the amplifier into a radio receiver.
Figure 26 : TIM Design Diagram (fC = 30kHz)
POWER SUPPLY
Using monolithic audio amplifier with non-regu-
lated supply voltage it is important to design the
power supply correctly. In any working case it must
provide a supply voltage less than the maximum
value fixed by the IC break-down voltage.
It is essential to take into account all the working
conditions, in particular mains fluctuations and sup-
ply voltage variations with and without load. The
TDA2030A (VS max = 44V) is particularly suitable for
substitution of the standard IC power amplifiers
(with VS max = 36V) for more reliable applications.
An example, using a simple full-wave rectifier fol-
lowed by a capacitor filter, is shown in the table 1
and in the diagram of Figure 27.
Figure 27 : DC Characteristics of
50W Non-regulated Supply
TDA2030A
12/15
相关PDF资料 |
PDF描述 |
|---|---|
| TDA2030AV | 18 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM5 |
| TDA2030H | 18 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM5 |
| TDA2030V | 18 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM5 |
| TDA2040V | 22 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM5 |
| TDA2052H | 60 W, 1 CHANNEL, AUDIO AMPLIFIER, PZFM7 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA2030AL-TA5-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:18W HI-FI AUDIO AMPLIFIER AND 35W DRIVER |
| TDA2030AL-TB5-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:18W HI-FI AUDIO AMPLIFIER AND 35W DRIVER |
| TDA2030A-TA5-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:18W HI-FI AUDIO AMPLIFIER AND 35W DRIVER |
| TDA2030A-TB5-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:18W HI-FI AUDIO AMPLIFIER AND 35W DRIVER |
| TDA2030AV | 功能描述:音频放大器 18W Hi-Fi 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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