8
KX-TG6572C/KX-TG6572R/KX-TGA653C/KX-TGA653R
4.1.3.
Signal Flowchart in the Radio Parts
Reception
A voice signal from TEL line is encoded to digital data "TXDATA" by BBIC (IC501) in a base unit.
Then TXDATA goes to RF PART and it's modulated to 1.9 GHz. The RF signal is amplified and fed to a selected antenna.
As for a handset RF, RF signal is received in one antenna.
BBIC down-converts to 864 kHz IF signal from RX signal and demodulates it to digital data "RXDATA".
BBIC (IC1) converts RXDATA into a voice signal and outputs it to speaker.
Transmission
A voice signal from microphone is encoded to digital data "TXDATA" by BBIC (IC1) in a handset.
Then TXDATA goes to RF PART, and it's modulated to 1.9 GHz. The RF signal is amplified and fed to a antenna.
As for a base unit RF, RF signal is received in two antennas.
BBIC (IC501) compares RF signal levels and selects the antenna to be used. Then BBIC down-converts to 864 kHz IF signal
from RX signal in the selected antenna, and demodulates it to digital data "RXDATA".
BBIC (IC501) converts RXDATA into a voice signal and outputs it to TEL line.
Summary of Contents for KX-TG6572C
Page 2: ...2 KX TG6572C KX TG6572R KX TGA653C KX TGA653R ...
Page 23: ...23 KX TG6572C KX TG6572R KX TGA653C KX TGA653R 4 9 Signal Route ...
Page 24: ...24 KX TG6572C KX TG6572R KX TGA653C KX TGA653R RF part signal route ...
Page 28: ...28 KX TG6572C KX TG6572R KX TGA653C KX TGA653R 8 1 2 Handset ...
Page 46: ...46 KX TG6572C KX TG6572R KX TGA653C KX TGA653R ...
Page 47: ...47 KX TG6572C KX TG6572R KX TGA653C KX TGA653R 11 1 2 Handset ...
Page 48: ...48 KX TG6572C KX TG6572R KX TGA653C KX TGA653R 11 1 3 Charger Unit ...
Page 69: ...69 KX TG6572C KX TG6572R KX TGA653C KX TGA653R Memo ...
Page 76: ...76 KX TG6572C KX TG6572R KX TGA653C KX TGA653R Memo ...
Page 88: ...88 KX TG6572C KX TG6572R KX TGA653C KX TGA653R T I KXTG6572C KXTG6572R KXTGA653C KXTGA653R ...