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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)： | 1/15頁(yè) |
| 文件大小： | 192K |
| 代理商： | LS656 |
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LS656
June1993
TONE GENERATOR INTERFACE
TELEPHONE SPEECH CIRCUIT WITH MULTIFREQUENCY
.
PRESENTSTHE PROPERDCPATHFORTHE
LINE CURRENT, PARTICULAR CARE BEING
PAIDTO HAVE LOWVOLTAGEDROP
.
HANDLES THE VOICE SIGNAL, PERFORM-
ING THE
2/4 WIRES INTERFACE
AND
CHANGING THE GAIN ON BOTH SENDING
AND RECEIVING AMPLIFIERS TO COMPEN-
SATEFOR LINEATTENUATION BYSENSING
EITHER THE LINE CURRENT OR THE LINE
VOLTAGE. IN ADDITION, THE LS656 CAN
ALSOWORK IN FIXED GAINMODE
.
ACTS ASLINEAR INTERFACE FOR MF, SUP-
PLYING A STABILIZED VOLTAGE TO THE
DIGITALCHIPANDDELIVERINGTOTHELINE
THE MF TONES GENERATEDBY THE M761
DESCRIPTION
The LS656 is a monolithic integrated circuit in 16-
lead plasticpackageto replace the hybrid circuit in
telephone set. It works with the same type of
transducersfor both transmitter and receiver (typi-
cally dynamic capsules).Manyof its electrical char-
acteristics can be controlled by means of external
componentsto meet differentspecifications.
In additionto the speechoperation, the LS656acts
asaninterfacefortheMFtonesignal(particularlyfor
M761 C/MOS frequencysynthesizer).
BLOCK DIAGRAM
(DIP16)
SO20L
DIP16
ORDERING NUMBERS
: LS656AB (DIP16)
LS656AD1 (SO20)
1/15
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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(chēng):STMicroelectronics 功能描述:TELEPHONE SPEECH CIRCUIT WITH MULTIFREQUENCY TONE GENERATOR INTERFACE |
| LS656AD1 | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:TELEPHONE SPEECH CIRCUIT WITH MULTIFREQUENCY TONE GENERATOR INTERFACE |
| LS656B | 制造商:STMICROELECTRONICS 制造商全稱(chēng):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(chēng):Taiyo Yuden (U.S.A.), Inc 功能描述:12 Volt Input Four Tube CCFT Inverter (8W) Brightness Control |
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