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KX-TG6411BX/KX-TG6412BX/KX-TG6413BX/KX-TGA641BX

1.2.3.

Telephone Line Interface

<Function>

• Bell signal detection
• Clip signal detection
• ON/OFF hook circuit

Bell & Clip (: Calling Line Identification Presentation: Caller ID) signal detection:

In the standby mode, Q3 is open to cut the DC loop current and decrease the ring load.
When ring voltage appears at the L1T (A) and L1R (B) leads (when the telephone rings), the AC ring voltage is transferred as
follows;

• B 

 L2 

 C4 

 R6 

 R33 

 IC7 Pin 21 (CID INp) 

• A 

 L1 

 C3 

 R4 

 R35 

 IC7 Pin 20 (CID INn)

ON/OFF hook circuit:

In the standby mode, Q3 is open, and connected as to cut the DC loop current and to cut the voice signal. The unit is conse-
quently in an 

on-hook condition

When IC7 detects a ring signal or press the TALK Key onto the handset, Q4 turns on and then Q3 turns on, thus providing an

off-hook condition

 (DC current flows through the circuit) and the following signal flow makes the loop current.

• B 

 L2 

D3 

 Q3 

 Q5 

 R21 

 R22 

 D3 

 L1 

A [

OFF HOOK

]

1.2.4.

Transmitter/Receiver

• Audio Circuits and DTMF tone signal circuits.

Base Unit and Handset mainly consist of RF Module and DECT BBIC. 
Base Unit and Handset transmit/receive voice signal and data signal through the antenna on carrier frequency.

1.2.4.1.

Transmitter Block

The voice signal input from the TEL LINE interface goes to RF Power Amp. (IC801) through DECT BBIC (IC7) as shown in

Block Diagram (Base Unit) 

(P.2)

The voice signal passes through the analog part of IC7 where it is amplified and converted to a digital audio stream signal. The
burst switch controller processes this stream performing encryption and scrambling, adding the various other fields to produce
the GAP (

G

eneric 

A

ccess 

P

rofile) standard DECT frame, assigning to a time slot and channel etc.

In IC7, the carrier frequency is changing, and frequency modulated RF signal is generated.In IC801,RF signal is amplified, and
radiated from antenna. Handset detects the voice signal or data signal in the circuit same as the following explanation of
Receiver Block.

1.2.4.2.

Receiver Block

The signal of 1900 MHz band (1881.792 MHz ~ 1897.344 MHz) which is input from antenna is input to IC7 as shown in 

Block

Diagram (Base Unit)

 (P.2).

In IC7, the signal of 1900 MHz band is downconverted to 864 kHz signal and demodulated, as GAP (

G

eneric 

A

ccess 

P

rofile)

standard DECT frames. It passes through the decoding section burst switch controller where it separates out the frame informa-
tion and performs de-encryption and de-scrambling as required. It then goes to the DSP section where it is turned back into ana-

log audio. This is amplified by the analog front end, and goes to the TEL LINE Interface.

1.2.5.

Pulse Dialling

During pulse dialing the hookswitch (Q3, Q4) is used to generate the pulses using the HOOK control signal, which is set high
during pulses. To force the line impedance low during the “pause” intervals between dial pulses, the PULSE_DIAL signal turns

on Q2.

Содержание KX-TG6411BX

Страница 1: ...c Communications Co Ltd 2009 Unau thorized copying and distribution is a viola tion of law Telephone Equipment Model No KX TG6411BX KX TG6412BX KX TG6413BX KX TGA641BX for Asia Middle Near East and ot...

Страница 2: ...M Codec Filter DSP Speech Encoding Speech Decoding BMC Burst Encoding Burst Decoding RF PLL 5 3 77 75 9 10 EEPROM SCL SDA 57 58 44 To AC Adaptor Limit Resistor Charge Detector CHARGE CONTACT Optional...

Страница 3: ...and speech decoding DSP section Echo cancellation and Echo suppression DSP section Any tones tone sidetone ringing tone etc generation DSP section DTMF receiver DSP section Clock Generation for RF Mo...

Страница 4: ...ge Contact from AC Adaptor 6 5 V as shown in Fig 101 The power supply is as follows DECT BBIC IC7 DC Jack 6 5 V D1 IC1 IC7 DC Jack 6 5 V D1 IC1 Q9 IC7 DC Jack 6 5 V D1 IC1 Q8 IC7 RF Power Amp IC801 DC...

Страница 5: ...hown in Block Diagram Base Unit P 2 The voice signal passes through the analog part of IC7 where it is amplified and converted to a digital audio stream signal The burst switch controller processes th...

Страница 6: ...log Front End D A A D 33 35 15 16 19 20 32 31 57 58 36 13 43 42 63 54 55 66 ADPCM Codec Filter DSP Speech Decoding Speech Encoding BMC Burst Decoding RF PA ANT1 IC801 Burst Encoding RF PLL MOD DEMOD 5...

Страница 7: ...d 1 8 V 1 4 3 Charge Circuit Circuit Operation When charging the handset on the Base Unit the charge current is as follows DC 6 5 V D1 R56 R55 D22 CHARGE Base CHARGE Handset Q4 D7 F1 BATTERY Bat tery...

Страница 8: ...8 KX TG6411BX KX TG6412BX KX TG6413BX KX TGA641BX 1 5 Circuit Operation Charger Unit 1 5 1 Power Supply Circuit The power supply is as shown...

Страница 9: ...h the development of new technology 2 1 2 Handset Schematic Diagram Handset Notes 1 DC voltage measurements are taken with an oscilloscope or a tester with a ground 2 The schematic diagram may be modi...

Страница 10: ...C60 CLK GND_C Q24 NC C504 NC GND NC C506 1 8V C837 NC CN5 10 CN5 9 CN5 8 CN5 7 CN5 6 CN5 5 CN5 4 CN5 3 CN5 2 CN5 1 1 5p C803 27n L801 DA802 1 2 3 DA801 1 2 3 NC C511 NC C512 NC C513 NC C514 NC C515 N...

Страница 11: ...500 680p C10 500 1k RA1 1 2 3 4 5 6 7 8 C622 NC D22 LINE_DC NC R126 HAK_CL1 3 9 R56 TEST VDD3 VDD1 NC C1 10p C171 120k R36 C617 1u 10 5p C29 5p C30 C37 5p 1M R4 1M R6 180k R3 180k R5 C5 10n 10n C6 10n...

Страница 12: ...1 VSS_LNA1 2 RF_RXp 21 CIDINp VREFp 3 RF_RXn 4 VSS_LNA2 5 RFP1 6 RFP0 7 REF_RES 8 AVS_XTAL 22 RINGp P3_7 23 RINGn P3_6 24 RINGOUT RINGING P3_5 25 PARADET P3_4 26 ADC0 P3_3 27 ADC1 INT0 P1_0 28 NTC AD...

Страница 13: ...C827 GND VSS CN5 10 GND CN5 1 RESETB CN5 4 V0 CN5 11 VDD CN5 8 SCLK CN5 6 LCD_CSB CN5 3 A0 CN5 5 OPT_PWR CN5 2 VDDA CN5 9 SID CN5 7 GND CN5 12 k1000p C152 GND_0 GND_0 GND_0 GND_0 DA801 1 2 3 27n L801...

Страница 14: ...14 KX TG6411BX KX TG6412BX KX TG6413BX KX TGA641BX 2 4 Schematic Diagram Charger Unit J1 2 1 TP3 G TP2 TP1 TP4 R1 10 D1 A K F1 SCHEMATIC DIAGRAM Charger Unit...

Страница 15: ...R9 R28 R27 R30 R31 R124 R42 R14 R123 R804 R803 R805 R802 R808 R511 R542 R657 R129 R130 R56 R126 R801 R532 L1 SA1 L801 DA801 L803 IC801 IC1 D3 D5 D6 D9 Q3 Q22 C5 C9 C166 C12 C6 C10 C7 C859 C851 C853 C...

Страница 16: ...R81 R33 R37 R36 R615 IC7 SPp DCP DCM SPm Q421 Q9 ANT2_TP CL2 C623 C626 C155 LINE_DC C18 C22 C56 C167 C141 C24 C23 C857 C856 C855 C52 C169 C170 C136 C171 C168 C149 C74 C837 C75 C145 C146 C150 C858 R20...

Страница 17: ...C35 C76 R807 R806 DA801 R805 R802 R203 R208 R209 R310 R309 R308 R63 R225 R252 R251 R64 R330 R40 R331 R41 R42 R248 R249 R301 R305 R302 R303 R300 R304 R2 R73 R311 R30 R74 R31 R7 R6 R4 R45 L804 L4 L8 L5...

Страница 18: ...6412BX KX TG6413BX KX TGA641BX 3 2 2 Bottom View 1 SP R 2 5 UP DOWN S1 TALK SOFT_C SOFT_B SOFT_A 3 4 6 7 MIC 8 9 LED5 LED1 LED2 LED3 LED9 LED7 LED4 LED12 LED8 LED6 0 CN5 A PbF PNLB1103Z KX TGA641 EUDE...

Страница 19: ...TG6412BX KX TG6413BX KX TGA641BX 3 3 Circuit Board Charger Unit 3 3 1 Component View 3 3 2 Bottom View J1 R1 D1 A PQUP11532Z PbF PQLV30055 PQLV30056 TP4 TP3 1 2 J1 D1 A F1 PbF PQLV30055 PQLV30056 PQUP...

Страница 20: ...100DCQ 10p C169 ECUE1H100DCQ 10p C17 PQCUV1A225KB 2 2 C170 ECUE1H100DCQ 10p C171 ECUE1H100DCQ 10p C18 ERJ3GEYJ682 6 8k C22 PQCUV1A105KB 1 C23 ECJ0EB0J224K 0 22 S C25 ECUE1C103KBQ 0 01 C27 F2A1H100B132...

Страница 21: ...EJ102 1k R38 ERJ2RKF1000 100 R39 ERJ2RKF1400 140 R4 PQ4R10XJ105 1M S R42 PQ4R10XJ475 4 7M S R43 PQ4R10XJ475 4 7M S R430 ERJ2GEJ100 10 R5 PQ4R10XJ184 180k S Safety Ref No Part No Part Name Description...

Страница 22: ...ED9 B3ACB0000216 DIODE SI MIC L0CBAY000032 MICROPHONE Q10 UN9219J TRANSISTOR SI S Q11 B1ADCF000161 TRANSISTOR SI Q12 B1ADCF000161 TRANSISTOR SI Q2 B1ADGE000004 TRANSISTOR SI Q4 B1ADGE000004 TRANSISTOR...

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