gsm phone schematics
Abstract: Handsfree full duplex AD1845 ADSP-2176 AD20MSP410 gsm Handset Circuit Diagram GSM-Chipset handsfree handsfree chip opti chipset
Contextual Info: AD20msp400-HF HANDSFREE CHIPSET HIGH-PERFORMANCE FULL-DUPLEX SOLUTION CUTS DESIGN TIME AND COST Analog Devices’ AD20msp400-HF Handsfree Chipset offers state-of-the-art handsfree performance for all digital mobile phones. The AD20msp400-HF Handsfree Chipset offers
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ad20msp400-hfpcs1900adsp-2176100-lead+10ad184568-leadgsm phone schematicshandsfree full duplexad20msp410gsm handset circuit diagramgsm-chipsethandsfreehandsfree chipopti chipset
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AN525
Abstract: AS2591 handsfree chip AS2525 HIP 4030 AI AS2525Q 2822u
Contextual Info: austriamicrosystems Single-Chip Handsfree Phone CMOS Integrated Circuit AS2525 DATA SHEET Key Features - General Description Line/speech handsfree circuit, LD/MF repertory dialler, and tone ringer on one 44 pin CMOS chip Operating range from 15 to 100 mA line current down
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as2525ch-8640an525as2591+4handsfree chiphip 4030 aias2525q2822u
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AN525
Abstract: BC327-25 SMD AN500-x smd diode S4 6E Zener Diode 1b8 PGKE AUSTRIA MIKRO SYSTEME INTERNATIONAL handsfree chip Application Notes AN500-x AS2525
Contextual Info: Preliminary Application Note AN525 Austria Mikro Systeme International AG Application Note AN525: AS2525,AS2591 Single Chip Handsfree Phone +16 digit LCD driver demo board 1. Scope This application note describes operation and features of the AS2525 Single Chip handsfree telephone and
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an525as2525as2591as252x+9/an525bc327-25 smdan500-xsmd diode s4 6ezener diode 1b8pgkeaustria mikro systeme internationalhandsfree chipapplication notes an500-x
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AS2525
Abstract: AUSTRIA MIKRO SYSTEME INTERNATIONAL microphone electret
Contextual Info: Preliminary AS2525 Single-Chip Handsfree Phone CMOS Integrated Circuit Austria Mikro Systeme International AG General Description Key Features □ Line/speech handsfree circuit, LD/MF repertory dialler, and tone ringer on one 44 pin CMOS chip □ Operating range from 15 to 100 mA line current
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as2525austria mikro systeme internationalmicrophone electret |
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antilarsen
Abstract: handsfree chip AUSTRIA MIKRO SYSTEME INTERNATIONAL Save
Contextual Info: Preliminary AS2520/21/20B/21B Telephone Speech Circuit with Loudhearing and Handsfree Austria Mikro Systeme International AG General Description Key Features □ Line/speech circuit, loudhearing, handsfree and dc/dc converter on one 28 pin CMOS chip □ Operating range from 13 to 100 mA down to 5
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as2520/21/20b/21bas2521as2521bantilarsen+3handsfree chipaustria mikro systeme internationalsave
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transistor equivalent 2n5551
Abstract: BC557 TRANSISTOR REPLACEMENT transistor KSP 42 2025h AN500-x Application Notes AN500-x AN522 AS2525 AN525 AS2522 and AS2591
Contextual Info: AN 522: AS2522A/B Single Chip Handsfree Line Interface Demo Board Application Note AN522 – Preliminary Application Note AS2522A/AS2522B Key features • • • • • • • • complete handsfree telephone with AS2522 Line Interface FSK Transmitter V.23,Bell 202, V.21, Bell103 on AS2522B only
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as2522a/ban522as2522a/as2522bas2522+11bell103as2522btransistor equivalent 2n5551bc557 transistor replacementtransistor ksp 422025han500-xapplication notes an500-xas2525an525as2522 and as2591
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KMPSa92
Abstract: antilarsen volume potentiometer 1k ohm handsfree chip CIRCUITS OF TRANSISTOR BC 547 telephone speech circuit sidetone cancellation m4 atx Handsfree full duplex differential amplifier 2n5551
Contextual Info: Preliminary AS2520/21/20B/21B Telephone Speech Circuit with Loudhearing and Handsfree Austria Mikro Systeme International AG General Description Key Features ❑ Line/speech circuit, loudhearing, handsfree and dc/dc converter on one 28 pin CMOS chip ❑ Operating range from 13 to 100 mA down to 5
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as2520/21/20b/21bkmpsa92antilarsenvolume potentiometer 1k ohm+7handsfree chipcircuits of transistor bc 547telephone speech circuitsidetone cancellationm4 atxhandsfree full duplexdifferential amplifier 2n5551
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TEA1098AL
Contextual Info: UTC TEA1098A LINEAR INTEGRATED CIRCUIT SPEECH AND HANDSFREE DESCRIPTION The UTC TEA1098A is designed to includes a line interface, handset HS microphone and earpiece amplifiers, handsfree (HF),microphone and loudspeaker amplifiers and a duplex controller with signal and noise monitors on both
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TEA1098AL
Contextual Info: UTC TEA1098A LINEAR INTEGRATED CIRCUIT SPEECH AND HANDSFREE DESCRIPTION The UTC TEA1098A is designed to includes a line interface, handset HS microphone and earpiece amplifiers, handsfree (HF),microphone and loudspeaker amplifiers and a duplex controller with signal and noise monitors on both
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handsfree chip IC
Abstract: DIGITAL RADIO ECHO CANCELLER CIRCUIT DIAGRAM SC14425 ad 190 DECT/DSP GROUP TQFP 100 PACKAGE DECT Transceiver CR16B SC14425XVJG TQFP-100
Contextual Info: FEBRUARY 2000 SC14425 Complete Baseband processor for DECT Base Stations with Caller-id and Handsfree General Description n Embedded flexible dedicated DSP executing Caller-id CID , Caller-id on Call Waiting (CIDCW) and handsfree, two echo cancellers, two echo suppressors, extended DTMF detection, DTMF generation, sidetone
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sc14425152mhz576mhz288mhz+9handsfree chip icdigital radio echo canceller circuit diagramad 190dect/dsp grouptqfp 100 packagedect transceivercr16bsc14425xvjgtqfp-100
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transistor intercom circuit
Abstract: ams an2110 AN2101 AS2520 handsfree chip AS25xx 5.1 amplifier schematic AMS Loudspeaker AUSTRIA MIKRO SYSTEME INTERNATIONAL AMS microphone
Contextual Info: Preliminary AN2110 Application Note AN2110: AS2520/1 4-wire handsfree interface Austria Mikro Systeme International AG 1. Scope This application note describes a complete analogue handsfree interface with voice switching for use in 4wire systems, such as CT-base stations , ISDN , Intercom applications, etc.
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an2110as2520/1as2520transistor intercom circuit+8ams an2110an2101handsfree chipas25xx5.1 amplifier schematicams loudspeakeraustria mikro systeme internationalams microphone
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handsfree chip
Abstract: low noise tone control circuits bjt advantages and disadvantages
Contextual Info: Data Sheet A u a t i'ia AS2520/1 A lk ^ ÉP" Telephone Speech Circuit with I I llH I Lcuclhearlng and Handsfree iv iljv o AG Key Features General Description □ Line/speech circuit, loudhearing, handsfree and dc/ dc converter on one 28 pin CMOS chip □ Operating range from 13 to 100 mA down to 5 mA
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as2520/1as2520as2521handsfree chip+2low noise tone control circuitsbjt advantages and disadvantages
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transistor C5103
Abstract: antilarsen antilarsen dynamic walky talky circuit AN3724 compressors TEA7540 TEA 7540 IC AN372 equivalent
Contextual Info: APPLICATION NOTE TEA7540 - SPEAKERPHONE CIRCUIT FOR HANDSFREE TELEPHONE SET by Paolo Aymon, Claude Ferry I INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 II HANDS-FREE SYSTEM ARCHITECTURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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tea7540an372-54transistor c5103antilarsen+6antilarsen dynamicwalky talky circuitan3724compressorstea 7540 ican372 equivalent
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block diagram of voice recognition device
Abstract: block diagram of speech recognition handsfree chip DIAGRAM OF SPEECH COMPRESSION D6305B D6386A D6386A-11 digital telephone block diagram of speech recognition processor Voice Activated
Contextual Info: D6386A HANDSFREE Chip for an all Digital Telephone Answering Device with True FULL Duplex SpeakerPhone and Speech Recognition General Description The D6386A chip is a digital speech/signal processing subsystem that implements all functions of TRUESPEECH
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d6386apo-1/96block diagram of voice recognition deviceblock diagram of speech recognition+7handsfree chipdiagram of speech compressiond6305bd6386a-11digital telephoneblock diagram of speech recognition processorvoice activated
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audio limiter ic
Abstract: DTMF mobile FX439 FX802 FX812 FX816 FX816DW FX816J dtmf in compressor audio
Contextual Info: CML Semiconductor Products own PRODUCT INFORMATION FX816 i NMT System Audio Processor Product Summary Features/Applications • • Full-Duplex Audio Processing for NMT Cellular System On-Chip Speech and SAT Facilities “Sidetone” Output Available HandsFree Compatibility
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fx816fx439fx812fx816j+8fx816dw28-pin237437baudio limiter icdtmf mobilefx802dtmf incompressor audio
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Contextual Info: CML Semiconductor Products PRODUCT INFORMATION FX816 NMT System Audio Processor Product Summary Featuros/Applications • Full-Duplex Audio Processing for NMT Cellular System • “Sidetone” Output Available e HandsFree Compatibility e On-Chip Speech and SAT Facilities
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VMPC7
Abstract: BC177 U4087B U4087B-FP U4090B
Contextual Info: U4087B TELEFUNKEN Semiconductors Low voltage voice switch interface circuit for hands-free operation in telephone Description The voice switch interface circuit U4087B is a linear integrated circuit for improvement of handsfree performance of U4090B system.
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u4087bu4090bd-74025vmpc7+2bc177u4087b-fp
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regulator 7828
Abstract: U4080B speech monitor peak detector 7828e speaker monitoring
Contextual Info: U4080B TELEFUNKEN Semiconductors Voice-Switched Circuit for Handsfree Operation Description The voice switched speakerphone integrated circuit, U4080B, incorporates a variety of functions see below . The versality of the device is further enhanced by the pro-
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u4080bd-74025regulator 7828speech monitor peak detector+27828espeaker monitoring
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SGS-Thomson telephone ic
Abstract: TEA7540DP UA733 handsfree chip speech monitor peak detector DIP28 TEA7532 TEA7540 TEA7540FP DIP28 package
Contextual Info: TEA7540 HANDSFREE CONTROLLER PRELIMINARY DATA NOISE/SPEECH DISCRIMINATION IN EMISSION AND RECEPTION INTEGRATED SIGNAL GAIN COMPRESSOR IN BOTH MODES PROGRAMMABLE ATTENUATORS IN BOTH MODES ADAPTED TO ACOUSTIC PARAMETERS OF ALL CABINETS LOW OPERATING VOLTAGE 2.5V
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tea7540dip28tea7540dptea7540fp+6sgs-thomson telephone icua733handsfree chipspeech monitor peak detectortea7532dip28 package
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duplex filter
Abstract: Digital ECHO microphone mixing circuit CDB6420 CS6420 CS6420-CS reverberation amplifier signal path designer audio agc preamp
Contextual Info: CS6420 Full-Duplex Speakerphone Chip Features General Description l Single-chip full-duplex handsfree operation l Automatic gain control l Optional 34 dB microphone preamplifier Most modern speakerphones use half-duplex operation, which switches transmission between the far-end talker
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cs6420ds205pp120-pinduplex filter+6digital echo microphone mixing circuitcdb6420cs6420-csreverberation amplifiersignal path designeraudio agc preamp
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Contextual Info: MX-COM, INC. MX826 f Preliminary Information C-BUS Ì I COMPATIBLE J AMPS/NAMPS SYSTEM AUDIO PROCESSOR Features • Full-Duplex Audio Processing for AMPS/ NAM PS Cellular Systems HandsFree Compatibility Powersave Low-Current Settings • On-Chip Speech and SAT Capabilities
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handsfree chip IC
Abstract: UA733 compressor IC handsfree chip preamplifier st TEA7532 TEA7540 TEA7540FP speech monitor peak detector
Contextual Info: TEA7540 HANDSFREE CONTROLLER NOISE/SPEECH DISCRIMINATION IN EMISSION AND RECEPTION INTEGRATED SIGNAL GAIN COMPRESSOR IN BOTH MODES PROGRAMMABLE ATTENUATORS IN BOTH MODES ADAPTED TO ACOUSTIC PARAMETERS OF ALL CABINETS LOW OPERATING VOLTAGE 2.5V LOW OPERATING CURRENT 2.1mA
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tea7540tea7540fphandsfree chip icua733+5compressor ichandsfree chippreamplifier sttea7532speech monitor peak detector
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AS2525
Abstract: handsfree chip AS2591 K2041 ft152 AUSTRIA MIKRO SYSTEME INTERNATIONAL
Contextual Info: Preliminary AS2525 Single-Chip Handsfree Phone CMOS Integrated Circuit Austria Mikro Systeme International AG General Description Key Features The AS2525 is a CMOS mixed-mode integrated circuit for use in feature phones, answering machines and fax machines. It contains an analogue line
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as2525as2591handsfree chipk2041+2ft152austria mikro systeme international
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Contextual Info: MX-CDM, INC. MX826 Advance Information AMPS/NAMPS SYSTEM AUDIO PROCESSOR Features • Full-Duplex Audio Processing for AMPS/ NAMPS Cellular Systems • HandsFree Compatibility • Powersave Low-Current Settings • On-Chip Speech and SAT Capabilities TX/RX Filtering & Gain - S A T Channel
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mx826dw28-pinmx826jmx826 |
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