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參數(shù)資料
| 型號： | TEA7532 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Monitor Amplifier(監(jiān)聽放大器) |
| 中文描述： | 監(jiān)視器放大器（監(jiān)聽放大器） |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 195K |
| 代理商： | TEA7532 |
Amplifierdc supply.
In transmissionmode,the supplyvoltageis control-
led by theinternal shunt DC regulator.For this rea-
son,theTEA7532shouldbesuppliedfromacurrent
source
Figure 13
.
(see : supplyconsiderations).
An antidistortion system is embodied which pro-
vides AGC control to avoid loudspeaker distortion
undercurrent-limited conditions.
Circuitaction.
When the supply voltageis insufficient,thevoltage
at pin 1, fallsbelow thereferencevoltage 1.1 V,re-
sultingintransistor(TR) beingswitchedoff,resulting
in zerocurrent flow in resistor R. This stateenables
thegaincontrolsystem.Undertheseconditions,the
shuntDC supplywill switch at a rate determined by
the time constant of theRC network on pin 3.
This switching action accomodatesnormal speech
characteristicsunderlow supply conditions.
1.2. ANTIACOUSTIC FEED-BACK SYSTEM(AN-
TILARSENSYSTEM)
Thepurposeof this system isto controlAGC action
in order to avoid acoustic feed-back between the
loudspeaker and the microphone, when used in a
telephoneset.
Figure 14 .
TEA7532
7/16
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TEA7533 | Monitor Amplifier(監(jiān)控放大器) |
| TEA7540FP | HANDSFREE CONTROLLER |
| TEA7540 | Handsfree Controller(無手柄控制器) |
| TEA7610 | 50 AMP LATCHING POWER RELAY |
| TEA7610SP | 50 AMP LATCHING POWER RELAY |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TEA7532DP | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MONITOR AMPLIFIER |
| TEA7532FP | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MONITOR AMPLIFIER |
| TEA7540 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HANDSFREE CONTROLLER |
| TEA7540FP | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HANDSFREE CONTROLLER |
| TEA7605 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LOW-DROP VOLTAGE REGULATOR |
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