9
KX-TGP500B04/KX-TPA50B04
4.2.4.
Signal Flowchart in the Radio Parts
Reception
A voice signal from TEL line is encoded to digital data "TXDATA" (*1) by DSP (IC504) 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 two antennas.
RFIC (IC701) compares RF signal levels and selects the antenna to be used. Then RFIC down-converts to 864 kHz IF signal
from RX signal in the selected antenna, and demodulates it to digital data "RXDATA"(*1).
DSP (IC504) converts RXDATA into a voice signal and outputs it to speaker.
Transmission
A voice signal from microphone is encoded to digital data "TXDATA" by DSP (IC501) 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 selected antenna.
As for a base unit RF, RF signal is received in two antennas.
RFIC (IC701) compares RF signal levels and selects the antenna to be used. Then RFIC down-converts to 864 kHz IF signal
from RX signal in the selected antenna, and demodulates it to digital data "RXDATA".
DSP (IC501) converts RXDATA into a voice signal and outputs it to TEL line.
Note:
(*1) TXDATA and RXDATA are bundled to one signal as "RXTXDATA" of DSP(IC504) in base unit.
Summary of Contents for KX-TGP500B04
Page 2: ...2 KX TGP500B04 KX TPA50B04 ...
Page 23: ...23 KX TGP500B04 KX TPA50B04 4 12 Signal Route ...
Page 55: ...55 KX TGP500B04 KX TPA50B04 9 4 IP Reset ...
Page 65: ...65 KX TGP500B04 KX TPA50B04 10 1 4 3 1 Switching Hub Check ...
Page 66: ...66 KX TGP500B04 KX TPA50B04 10 1 4 3 2 Repeater Hub Check ...
Page 67: ...67 KX TGP500B04 KX TPA50B04 10 1 4 4 Router Check ...
Page 68: ...68 KX TGP500B04 KX TPA50B04 10 1 4 5 Modem Check ...
Page 69: ...69 KX TGP500B04 KX TPA50B04 10 1 4 6 IP Duplication Check ...
Page 75: ...75 KX TGP500B04 KX TPA50B04 10 1 6 5 RF DSP Interface Signal Wave Form FP Base ...
Page 76: ...76 KX TGP500B04 KX TPA50B04 PP Handset ...
Page 77: ...77 KX TGP500B04 KX TPA50B04 ...
Page 78: ...78 KX TGP500B04 KX TPA50B04 ...
Page 81: ...81 KX TGP500B04 KX TPA50B04 ...
Page 83: ...83 KX TGP500B04 KX TPA50B04 NG Examples Program Flash IC503 NG Wave RAM IC505 NG Wave ...
Page 84: ...84 KX TGP500B04 KX TPA50B04 Data Flash IC502 NG Wave ...
Page 86: ...86 KX TGP500B04 KX TPA50B04 11 1 2 Handset ...
Page 87: ...87 KX TGP500B04 KX TPA50B04 11 1 3 Charger Unit ...
Page 88: ...88 KX TGP500B04 KX TPA50B04 11 2 How to Replace the Handset LCD ...
Page 89: ...89 KX TGP500B04 KX TPA50B04 ...
Page 116: ...116 KX TGP500B04 KX TPA50B04 Note ...