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參數資料
| 型號： | ST5080D |
| 廠商： | 意法半導體 |
| 英文描述： | PIAFE PROGRAMMABLE ISDN AUDIO FRONT END |
| 中文描述： | PIAFE可編程綜合業務數字網音頻前端 |
| 文件頁數： | 1/32頁 |
| 文件大?。?/td> | 347K |
| 代理商： | ST5080D |
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ST5080A
PIAFE
PROGRAMMABLE ISDN AUDIO FRONT END
ADVANCE DATA
FEATURES:
CompleteCODECand FILTER systemincluding:
PCM ANALOG TO DIGITAL AND DIGITAL TO
ANALOGCONVERTERS
POWERFUL ANALOG FRONT END CAPA-
BLE TO INTERFACE DIRECTLY:
- MicrophoneDynamic, Piezo or Electrete
- Earpiecedown to 100
or up to 150nF
- Loudspeakerdown to 50
or Buzzer up to
600nF.
TRANSMIT BAND-PASS FILTER
ACTIVE RC NOISE FILTER
RECEIVE LOW-PASS FILTER WITH SIN X/X
CORRECTION
MU-LAW OR A-LAW SELECTABLE COM-
PANDING CODER AND DECODER
PRECISION VOLTAGEREFERENCE
Phones Features:
DUAL SWITCHABLE MICROPHONE AMPLI-
FIER INPUTS. GAIN PROGRAMMABLE: 15
dB RANGE, 1 dB STEP.
LOUDSPEAKER
AMPLIFIER
OUTPUT. ATTENUATION PROGRAMMABLE:
30 dB RANGE, 2 dB STEP.
SEPARATEEARPIECEAMPLIFIER OUTPUT.
ATTENUATION PROGRAMMABLE: 15 dB
RANGE, 1dB STEP
AUXILIARY SWITCHABLE EXTERNAL RING
INPUT (EAIN).
TRANSIENT SUPRESSION SIGNAL DURING
POWER ON.
INTERNAL
PROGRAMMABLE
CIRCUIT. ATTENUATION PROGRAMMABLE:
15 dB RANGE, 1 dB STEP.
INTERNAL RING OR TONE GENERATOR IN-
CLUDING DTMF TONES, SINEWAVE OR
SQUAREWAVE
WAVEFORMS.
ATION PROGRAMMABLE: 27 dB RANGE, 3
dB STEP.
COMPATIBLE WITH HANDS-FREE CIRCUIT
TEA7540.
ON CHIP SWITCHABLE ANTI-ACOUSTIC
FEED-BACK CIRCUIT (ANTI-LARSEN).
AUXILIARY
SIDETONE
ATTENU-
General Features:
EXTENDED TEMPERATURE RANGE OP-
ERATION
(*)
–40
°
C TO +85
°
C.
EXTENDEDPOWERSUPPLY RANGE5V
±
10%.
60 mW OPERATINGPOWER (TYPICAL).
1.0 mW STANDBY POWER (TYPICAL).
CMOS DIGITAL INTERFACES.
SINGLE + 5V SUPPLY.
DIGITAL LOOPBACKTEST MODE.
PROGRAMMABLE DIGITAL AND CONTROL
INTERFACES:
–Digital PCM Interface associated with
separate
serial
CROWIRE
compatible.
–GCI interfacecompatible.
Control
Interface
MI-
(*)
Functionalityguaranteed in the range – 40
°
C to +85
°
C;
Timing and Electrical Specifications are guaranteed inthe range
– 25
°
C to +85
°
C.
APPLICATIONS:
ISDN TERMINALS.
DIGITAL TELEPHONES
CT2 AND GSMAPPLICATIONS
This isadvanced information on anew product now in development or undergoing evaluation. Details are subject to change without notice.
December 1994
ORDERING NUMBER:
ST5080D
SO28
1/32
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