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9.4. Signal Flowchart in the Whole System
Reception
CN101 of the base unit is connected to the TEL line, and the signal is input through the bridge diode D101. While talking the
relay (Q121) is turned ON and amplified at the amplifiers Q461, then led to DSP (IC501). DSP generates ADPCM signal. The
ADPCM signal is input to RFIC (IC101) of RF UNIT, and is mixed with pseudo random noise code (PN code) to spread the
spectrum. RFIC outputs FSK modulated RF signal. The RF signal is passed through the balun (T101) and filter (L107) to the
T/R switch (IC109). And the RF signal amplifies by the power amplifier (IC105) and fed into T/R switch (IC110) and passes
through filter (L106) to Diversity ANTENNA. As for the handset, RF signal from the antenna passes through filter (L106) and
switch by T/R switch (IC110) to LNA (IC106). The RF signal is amplified by LNA (IC106) and switched by T/R switch (IC109)
and input to RFIC passing through filter (L107) and the balun (T101) to perform the de-spread, then input to DSP (IC201). DSP
performs ADPCM decoding to convert the signal into the voice signal, then it is output to the speaker.
Transmission
The voice signal input from the microphone is led to DSP (IC201). The DSP generates ADPCM signal. As well as the reception,
it is converted into the RF signal by RFIC (IC101). Passing through the balun (T101) and filter (L107), to the T/R switch (IC109).
And the RF signal amplifies by the power amplifier (IC105) and fed into T/R switch (IC110) and passes through filter (L106) to
ANTENNA. As for the base unit, RF signal from the Diversity antenna passes through filter (L106) and switch by T/R switch
(IC110) to LNA (IC106). The RF signal is amplified by LNA (IC106) and switched by T/R switch (IC109) and is input to RFIC
(IC101) passing through filter (L107) and the balum (T101) to perform the de-spread, then input to DSP (IC201). DSP performs
ADPCM decoding to convert the signal into the voice signal. The voice signal is amplified at the TX amplifier (Q131), then output
to the TEL line (CN101) through the relay (Q121) and bridge (D101).
53
KX-TG2559LBS
Содержание KX-TG2559LBS
Страница 4: ...1 LOCATION OF CONTROLS 1 1 Base Unit 4 KX TG2559LBS ...
Страница 5: ...1 2 Handset 5 KX TG2559LBS ...
Страница 7: ...7 KX TG2559LBS ...
Страница 9: ...3 2 Adding Another Phone 9 KX TG2559LBS ...
Страница 10: ...3 3 STANDARD BATTERY LIFE 3 3 1 Battery Charge 3 3 2 Battery strength 3 3 3 Recharge 10 KX TG2559LBS ...
Страница 11: ...3 3 4 Battery information 3 3 5 Standby mode The handset is off the base Unit 11 KX TG2559LBS ...
Страница 12: ...3 4 Selecting the Dialing Mode 12 KX TG2559LBS ...
Страница 13: ...3 5 Selecting the Line Mode 13 KX TG2559LBS ...
Страница 14: ...4 OPERATION 4 1 Making Calls 14 KX TG2559LBS ...
Страница 15: ...15 KX TG2559LBS ...
Страница 16: ...4 2 Answering Calls 16 KX TG2559LBS ...
Страница 17: ...4 3 Flash Button 17 KX TG2559LBS ...
Страница 21: ...21 KX TG2559LBS ...
Страница 22: ...4 4 4 Calling back from the caller list 22 KX TG2559LBS ...
Страница 24: ...4 4 6 Storing caller list information in the directory 24 KX TG2559LBS ...
Страница 25: ...4 4 7 Erasing caller list information 4 4 8 To erase all entries in the Caller List 25 KX TG2559LBS ...
Страница 26: ...5 DISASSEMBLY INSTRUCTIONS 26 KX TG2559LBS ...
Страница 28: ...6 ASSEMBLY INSTRUCTIONS 6 1 Assembly the LCD to P C Board Handset 28 KX TG2559LBS ...
Страница 29: ...6 2 How To Check Splash Resistance 29 KX TG2559LBS ...
Страница 31: ...7 TROUBLESHOOTING GUIDE 31 KX TG2559LBS ...
Страница 32: ...7 1 Check Power 32 KX TG2559LBS ...
Страница 34: ...7 3 Check Link 34 KX TG2559LBS ...
Страница 41: ...7 4 6 RF DSP Interface Signal Wave Form 41 KX TG2559LBS ...
Страница 42: ...7 5 Check Handset Voice Transmission 7 6 Check Handset Voice Reception 42 KX TG2559LBS ...
Страница 43: ...7 7 Check Call ID 43 KX TG2559LBS ...
Страница 50: ...8 7 Frequency Table 50 KX TG2559LBS ...
Страница 55: ...10 TERMINAL GUIDE OF IC S TRANSISTORS AND DIODES 10 1 Base Unit 10 2 Handset 55 KX TG2559LBS ...
Страница 60: ...60 KX TG2559LBS ...
Страница 67: ...15 CPU DATA Base Unit 15 1 IC501 68 KX TG2559LBS ...
Страница 68: ...16 CPU DATA Handset 16 1 IC201 69 KX TG2559LBS ...
Страница 69: ...17 EXPLANATION OF IC TERMINALS RF Unit Base Unit 17 1 IC101 70 KX TG2559LBS ...
Страница 71: ...19 CABINET AND ELECTRICAL PARTS Base Unit 72 KX TG2559LBS ...
Страница 72: ...20 CABINET AND ELECTRICAL PARTS Handset 73 KX TG2559LBS ...
Страница 73: ...21 ACCESSORIES AND PACKING MATERIALS 74 KX TG2559LBS ...
Страница 79: ...23 3 MEMO 80 KX TG2559LBS ...
Страница 87: ...28 2 Flow Solder Side View IC551 B E C B E C KX TG2559LBS 88 ...
Страница 90: ...91 KX TG2559LBS M H KXTG2559LBS Printed in Japan ...