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參數(shù)資料
| 型號(hào)： | HT82V739_08 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | 1200mW Audio Power Amp with Shutdown |
| 中文描述： | 1200mW音頻功率放大器，帶有關(guān)斷 |
| 文件頁(yè)數(shù)： | 3/10頁(yè) |
| 文件大小： | 141K |
| 代理商： | HT82V739_08 |
Functional Description
OUTP Rising Time (t
R
)
When CE is active low, the HT82V739 needs 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,
which will incorporate a capacitance value of C1, should be adjusted in accordance with the speaker s audio frequency
response. A greater value of C1 will improve the noise burst while turning on the amplifier. The recommended opera-
tion sequence is:
Turn On: Aud In signal standby (1/2 VDD)
enable amplifier
wait t
R
for amplifier ready
Aud In signal start
Turn Off: Aud In signal finish
disable amplifier
wait t
R
for amplifier off
Aud In signal off
If the application is not powered by batteries and there is no problem with amplifier On/Off issue, a capacitor value of
0.1 F for C1 is recommended.
HT82V739
Rev. 1.20
3
January 17, 2008
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT82V739 | 1200mW Audio Power Amp with Shutdown |
| HT82V804 | CCD 4CH Vertical Driver |
| HT82V805 | CCD 4 Channel Vertical Driver |
| HT82V805_1 | CCD 4 Channel Vertical Driver |
| HT82V806 | CCD 6 Channel Vertical Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT82V804 | 制造商:HOLTEK 制造商全稱(chēng):Holtek Semiconductor Inc 功能描述:CCD 4CH Vertical Driver |
| HT82V805 | 制造商:HOLTEK 制造商全稱(chēng):Holtek Semiconductor Inc 功能描述:CCD 4 Channel Vertical Driver |
| HT82V805_1 | 制造商:HOLTEK 制造商全稱(chēng):Holtek Semiconductor Inc 功能描述:CCD 4 Channel Vertical Driver |
| HT82V805A | 制造商:HOLTEK 制造商全稱(chēng):Holtek Semiconductor Inc 功能描述:CCD 4 Channel Vertical Driver |
| HT82V806 | 制造商:HOLTEK 制造商全稱(chēng):Holtek Semiconductor Inc 功能描述:CCD 6 Channel Vertical Driver |
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