15 CIRCUIT OPERATION (BASE UNIT)
15.1. Outline
Base Unit consists of the following ICs as shown in
BLOCK DIAGRAM (BASE UNIT)
(P.42).
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DECT BBIC (
B
ase
B
and IC): IC2
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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 (
B
urst
M
odule
C
ontroller 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: IC3
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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: IC1
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Temporary operating parameters (for RF, etc.)
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Additionally,
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Power Supply Circuit (+4.0V, +2.65V output)
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Crystal Circuit (10.368MHz)
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Charge Circuit
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Telephone Line Interface Circuit
43
KX-TG1105RUS / KX-TG1105R UT / KX-TG1106R US / KX-TG1106R UT / KX-TGA110RUS / KX-TGA110RUT
Содержание KX-TG1105RUS
Страница 11: ...4 5 For Service Hint 11 KX TG1105RUS KX TG1105RUT KX TG1106RUS KX TG1106RUT KX TGA110RUS KX TGA110RUT ...
Страница 49: ...19 SIGNAL ROUTE 49 KX TG1105RUS KX TG1105RUT KX TG1106RUS KX TG1106RUT KX TGA110RUS KX TGA110RUT ...
Страница 70: ...29 2 KX TG1106RUS RUT 70 KX TG1105RUS KX TG1105RUT KX TG1106RUS KX TG1106RUT KX TGA110RUS KX TGA110RUT ...
Страница 76: ...Memo 76 KX TG1105RUS KX TG1105RUT KX TG1106RUS KX TG1106RUT KX TGA110RUS KX TGA110RUT ...