20 CIRCUIT OPERATION (BASE UNIT)
20.1. Outline
Base Unit consists of the following ICs as shown in BLOCK DIAGRAM (BASE UNIT) (P.68).
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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.)
Refer to EEPROM LAYOUT (BASE UNIT) (P.85).
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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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KX-TCD300FXS / KX-TCD300FXT / KX-TCA130FXS / KX-TCA130FXT
Содержание KX-TCA130FXS
Страница 11: ...11 KX TCD300FXS KX TCD300FXT KX TCA130FXS KX TCA130FXT ...
Страница 27: ...27 KX TCD300FXS KX TCD300FXT KX TCA130FXS KX TCA130FXT ...
Страница 33: ...9 2 Available Character Entries for SMS 33 KX TCD300FXS KX TCD300FXT KX TCA130FXS KX TCA130FXT ...
Страница 46: ...12 3 Check Link 12 3 1 Base Unit 46 KX TCD300FXS KX TCD300FXT KX TCA130FXS KX TCA130FXT ...
Страница 48: ...12 3 2 Handset 48 KX TCD300FXS KX TCD300FXT KX TCA130FXS KX TCA130FXT ...
Страница 75: ...24 SIGNAL ROUTE 75 KX TCD300FXS KX TCD300FXT KX TCA130FXS KX TCA130FXT ...
Страница 80: ...27 ENGINEERING MODE 27 1 Base Unit 80 KX TCD300FXS KX TCD300FXT KX TCA130FXS KX TCA130FXT ...
Страница 83: ...27 2 Handset 83 KX TCD300FXS KX TCD300FXT KX TCA130FXS KX TCA130FXT ...
Страница 94: ...31 CABINET AND ELECTRICAL PARTS LOCATION BASE UNIT 94 KX TCD300FXS KX TCD300FXT KX TCA130FXS KX TCA130FXT ...
Страница 96: ...33 CABINET AND ELECTRICAL PARTS LOCATION CHARGER UNIT 96 KX TCD300FXS KX TCD300FXT KX TCA130FXS KX TCA130FXT ...
Страница 98: ...34 2 KX TCA130FXS FXT 98 KX TCD300FXS KX TCD300FXT KX TCA130FXS KX TCA130FXT ...