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參數(shù)資料
| 型號(hào)： | LS656 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Telephone Speech Circuit With Multifrequency Tone Generator Interface(帶多頻語(yǔ)音發(fā)生器接口的電話語(yǔ)音電路) |
| 中文描述： | 電話語(yǔ)音電路多頻音發(fā)生器接口（帶多頻語(yǔ)音發(fā)生器接口的電話語(yǔ)音電路） |
| 文件頁(yè)數(shù)： | 8/15頁(yè) |
| 文件大?。?/td> | 192K |
| 代理商： | LS656 |
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parator (8) of LS656 drives internal electronic
switches ; the voltage and the current delivered by
thevoltagesupply(9) are increasedtoallow theop-
erationof the oscillator.
This extra current is diverted by the receiving and
sendingsectionoftheLS656andduringthisopera-
tion the receiving output stage is partially inhibited
and the input stages of sending and receiving am-
plifiers are switched OFF.
A controlled amount of the signalling is allowed to
reach the earphoneto givea feedbackto the sub-
scriber ;theMFamplifier(10) deliversthe dial tones
to the sendingpaths.
Themute functioncan be usedalso when atempo-
raryinhibitionof the outputsignalis requested.The
application circuit shown in fig. 10 fulfils the
EUROPEII standard(-6, -8dBm). If theEUROPEI
levels arerequired(-9, -11dBm)anexternaldivider
Figure 8
: Two to Four Wires Conversion.
Figure9.
LS656
8/15
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LS656AB | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TELEPHONE SPEECH CIRCUIT WITH MULTIFREQUENCY TONE GENERATOR INTERFACE |
| LS656AD1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TELEPHONE SPEECH CIRCUIT WITH MULTIFREQUENCY TONE GENERATOR INTERFACE |
| LS656B | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TELEPHONE SPEECH CIRCUIT WITH MULTIFREQUENCY TONE GENERATOR INTERFACE |
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| LS680-1 | 制造商:TAIYO-YUDEN 制造商全稱:Taiyo Yuden (U.S.A.), Inc 功能描述:12 Volt Input Four Tube CCFT Inverter (8W) Brightness Control |
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