21 CIRCUIT OPERATION (BASE UNIT)
21.1. Outline
Base Unit consists of the following ICs as shown in BLOCK DIAGRAM (BASE UNIT) (P.64).
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DECT BBIC (Base Band IC): IC8
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Handling all the audio, signal and data processing needed in a DECT base unit
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Controlling the DECT specific physical layer and radio section (Burst Module Controller section)
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ADPCM codec filter for speech encoding and speech decoding (DSP section)
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Echo-cancellation and Echo-suppression (DSP section)
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Any tones (tone, sidetone, ringing tone, etc.) generation (DSP section)
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DTMF receiver (DSP section)
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Clock Generation for RF Module
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ADC, DAC, timer, and power control circuitry
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All interfaces (ex: RF module, EEPROM, LED, Analog Front End, etc.)
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RF Module: IC2
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PLL Oscillator
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Detector
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Compress/Expander
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First/Second Mixer
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Amplifier for transmission and reception
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EEPROM: IC3
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Temporary operating parameters (for RF, etc.)
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Additionally,
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Power Supply Circuit (+3.3V, +2.5V, +1.8V output)
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Crystal Circuit (10.368MHz)
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Charge Circuit
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Telephone Line Interface Circuit
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FLASH MEMORY: IC5
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Voice Prompt (TAM) D/L Area
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ICM/OGM/MEMO Recording Area
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KX-TG1860BXS / KX-TG1860B XT / KX-TCA132CXS / KX-TCA132CXT / KX-TCA130CXS / KX-TCA130CXT
Содержание KX-TCA130CXS
Страница 9: ...9 KX TG1860BXS KX TG1860BXT KX TCA132CXS KX TCA132CXT KX TCA130CXS KX TCA130CXT ...
Страница 24: ...24 KX TG1860BXS KX TG1860BXT KX TCA132CXS KX TCA132CXT KX TCA130CXS KX TCA130CXT ...
Страница 44: ...13 3 2 Handset 44 KX TG1860BXS KX TG1860BXT KX TCA132CXS KX TCA132CXT KX TCA130CXS KX TCA130CXT ...
Страница 71: ...25 SIGNAL ROUTE 71 KX TG1860BXS KX TG1860BXT KX TCA132CXS KX TCA132CXT KX TCA130CXS KX TCA130CXT ...
Страница 72: ...72 KX TG1860BXS KX TG1860BXT KX TCA132CXS KX TCA132CXT KX TCA130CXS KX TCA130CXT ...
Страница 80: ...28 2 Handset 80 KX TG1860BXS KX TG1860BXT KX TCA132CXS KX TCA132CXT KX TCA130CXS KX TCA130CXT ...
Страница 88: ...33 2 KX TCA130CXS CXT 88 KX TG1860BXS KX TG1860BXT KX TCA132CXS KX TCA132CXT KX TCA130CXS KX TCA130CXT ...