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參數資料
| 型號： | HT82V733 |
| 廠商： | Holtek Semiconductor Inc. |
| 元件分類： | 音頻放大器 |
| 英文描述： | 240mA Audio Power Amp |
| 中文描述： | 二百四毫安音頻功率放大器 |
| 文件頁數： | 3/8頁 |
| 文件大小： | 111K |
| 代理商： | HT82V733 |
Functional Description
OUTP Rising Time (t
R
)
When CE active low, the HT82V733 need rising time to output fully on OUTP pin. However, the rising time depends on
C1. (*see the application circuits)
Capacitor
t
R
Voltage
0.1 F
1 F
4.7 F
10 F
2.2V
15ms
30ms
90ms
185ms
3V
15ms
30ms
90ms
185ms
4V
15ms
30ms
90ms
185ms
For battery based applications, power consumption is a key issue, therefore the amplifier should be turned off when in
the standby state. In order to eliminate any speaker sound bursts while turning the amplifier on, the application circuit,
whichwillincorporateacapacitancevalueofC1,shouldbeadjustedinaccordancewiththespeaker s audiofrequency
response. A greater value of C1 will improve the noise burst while turning on the amplifier. The recommended opera-
tion sequence is:
Turn On: audio1 signal standby (1/2 VDD)
enable amplifier
wait t
R
for amplifier ready
audio1 output
Turn Off: audio1 signal finished
disable amplifier
wait t
R
for amplifier off
audio1 signal off
If the application is not powered by batteries and there is no problem with amplifier On/Off issue, a capacitor value of
0.1uF for C1 is recommended.
Application Circuits
HT82V733
Rev. 1.10
3
January 6, 2003
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相關PDF資料 |
PDF描述 |
|---|---|
| HT82V735 | 330mW Stereo Audio Power Amp With Shutdown |
| HT82V736 | Stereo Headphone Driver with Mute |
| HT82V737 | 16-Bit Stereo Audio D/A Converter with Earphone Driver |
| HT82V738 | 24-Bit Stereo Audio D/A Converter |
| HT82V739_08 | 1200mW Audio Power Amp with Shutdown |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HT82V733(8SOP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Amplifier. Other |
| HT82V733_02 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:240mA Audio Power Amp |
| HT82V735 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:330mW Stereo Audio Power Amp With Shutdown |
| HT82V736 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Stereo Headphone Driver with Mute |
| HT82V737 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:16-Bit Stereo Audio D/A Converter with Earphone Driver |
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