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TP4 CN1 1 TEL_JACK 2 3 4 5 6
TP7 TP21 J1 L6 NC R81 C80 D14 NC NC 33u N.M. J6 SA1 R82 0 C81 NC L2
Line Voltage 48V DC (When ON-Hook) 10V DC (When OFF-Hook)
TP20 D3
10V DC (When OFF-Hook) 0V DC (When ON-Hook)
TP24 Q4 R23
(1)
C78
NC C77
NC TP19
N.M.
J7
NC
100K R114 5.6k R25 5.6k C19 N.M. Q5 R26 10K R28 2.2K
D15
R80
R76 NC R77
NC
J2 J3 J4
L7 33u J8 N.M. J5 N.M.
NC
C79
NC
NC
N.M. R106 OPTION4 RLY1 9 8 7 N.M. 2 3 4 1 10 D2 N.M. Q1 N.M. 10k R68 C125 N.M. 100k C75 R70 5.6M 0.01u R105 C12 K0.022 C13 K0.022 R67 R69 5.6M 0.01u 100K C74 27k R16 R17 R107 27k C101 6800p 22k 22k C102 6800p R78
R79 NC NC
Q12
C18
N.M.
RX_AF (When ON-Hook) Caller ID, Bell Signal
(2)
0V (When ON-Hook) +0.7V (When OFF-Hook)
(3) (4) (5)
TP22 DC_JACK CN2 - 2 + 1 D1 TP9 TP5 +5.5V
4.0V DC
+4.0V 330u /6.3V C4 TP14 5.6K N.M. 1 3 VIN VOUT ADJ VOUT 2 4 R8 100R C114 C3
(6)
7.8V IC1 3.9V 2.9V 3.9V
3.0V DC +3.0V
Q2 56K C6 N.M. 10u /16V C7 15K 4p N.M. C9 N.M.
1.8V DC
Q3 C10
+1.8V
10p
C119 2.2u
100u /16V F
N.M. 10u /16V
C1
2p
24K R13
R12
C8
R15
C5
C11
C2
(7) (8)
TP15
220R
R9
Charge Current
(9)
Charge Terminal
TP11 R4 22 R5 R10 R6 NC 1000p 22V C107 D6 22 N.M. R11 47K
R14
(10)
Bell Signal
(11) (12)
0.01u C110 R27 C22 5.6K 560p R22 C17 560p C66 5K6 C27 10p
(13) (14) (15)
R32 100R
IC6
CLE ALE 1 Vss Vcc 44 2 CLE CE 43 3 ALE RE 42 4 WE R/B 41 5 WP GND 40 6 N.C N.C 39 7 N.C N.C 38 8 N.C 9 N.C 10 N.C 11 12 13 N.C 14 N.C 15 N.C 16 N.C N.C 37 N.C 36 N.C 35 34 33 N.C 32 N.C 31 N.C 30 N.C 29
C20 R29 0.1u 100R R24 P3[6] R108 R109 10k 10k 100R C21 10p C23 NC
0.1u
(16) (17) (18) (19) (20)
R/B
WE C126 100p C68 1u
Q13 C103 0.1u
Caller ID at ON-HOOK
IC7
AD15 AD14 AD13 AD12 AD11 AD10 AD9 AD8
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 A15 A14 A13 A12 A11 A10 A9 A8 NC NC WE NC NC NC NC NC A17 A7 A6 A5 A4 A3 A2 A1 A16 NC VSS DQ15 DQ7 DQ14 DQ6 DQ13 DQ5 DQ12 DQ4 VDD DQ11 DQ3 DQ10 DQ2 DQ9 DQ1 DQ8 DQ0 OE VSS CE A0 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
AD16
0V
DAB15 DAB7 DAB14 DAB6 DAB13 DAB5 DAB12 DAB4 DAB11 DAB3 DAB10 DAB2 DAB9 DAB1 DAB8 DAB0 ACS0
(21)
WE
IC8
1 1A 2 1B 3 2Y 4 GND VCC 8 1Y 7 2B 6 2A 5 RE ACS1
3.1V
(22) (23)
TP12 TP49
AD17 AD7 AD6 AD5 AD4 AD3 AD2 AD1
RE
0V
AD0
17 N.C N.C 28 DAB0 18 I/O0 I/O7 27 DAB7 DAB1 19 I/O1 I/O6 26 DAB6 DAB2 20 I/O2 I/O5 25 DAB5 DAB3 21 I/O3 I/O4 24 DAB4 22 Vss Vcc 23 C67 1u
C127 100p
: No Components
(24)
Loop Current
(1)
C25 N.M. Q6 N.M. R31 N.M. R35 N.M. R34 0R
TP29 R52 R48 47K 10u/50V 1.8K C50 D10 NC N.M. D4 R54 0.1u C52 C35 NC R42 27K R50 C115 NC C46 0.22u R49 C47 56R NC NC 390R
100p
R44 4700p R43 C36 8.2K R45 12R Q7 N.M. R36 N.M. R37 N.M. C109 1u/10V 2.2u/10V C108 1.8k
R47
R53 0R 10k
C49
N.M. Q9 R51
1000p
C113
R65
39R CN4 DB111G C112 NC +5.5V CN6 1 DC_IN
Q8
C31 N.M.
R71 2.2u/10V C40 R46 27R N.M. C111 NC R72 10k C76 NC
C60
R62 1K
(2)
TP26
7V (When No Beep)
C26 NC
RX_AF (When OFF-HOOK) · Caller waiting · Audio · SMS (RX) TP31
R39 0.22u 10p C41 56R
R30 C24
0.1u
Beep signal TX_AF · Audio · SMS (TX)
0R
(3) (4)
+3.0V D7 +3.0V 4.7V D8 D9 4.7V 4.7V R64 1k R84 1k R55 1k C53 0.1u 10K
(5) (6)
D11 D12
C130
D5 Q10
100K 1/10V
CN9 1 JTAG CN10 1 RX CN7 1 TX CN8 1 GND
(7) (8)
D13
IC3 3.0V
1 A0 2 A1 3 A2 4 VSS VCC 8 WP 7 SCL 6 SDA 5
R56
R57
10K
C59 ANT1 1 3p
(9)
0V
0.1u
C65
(10)
R38 100k R41 10p C38 0.082u C32 0.022u
DA1 1 2 R91 180 R92 180 3
C57
10p C85
NC
22R
ADC3 102 AVS_sense 101 DC_sense 100 DC_stab 99 VBAT3/RINGING 98 P2[6]/stop_charge 97 P1[7]/CHARGE/INT7n 96 R101 P1[6]/PON/INT6n 95 DC_I 94 10K P2[7]/DC_CTL 93 DAB15 92 DAB15 DAB7 91 DAB7 DAB14 90 DAB14 DAB6 89 DAB6 DAB13 88 DAB13 DAB5 87 DAB5 DAB12 86 DAB12 DAB4 85 DAB4 P2[5]/SDA1 84 P2[4]/SCL1 83 P2[3]/ADC1 82 P2[2]/ADC0 81 P2[1]/PWM1 80 P2[0]/PWM0 79 3.0V VDDIO 78 1.8V VDD 77 VSS 0V DAB11 76 DAB11 75 DAB3 74 DAB3 DAB10 73 DAB10 DAB2 72 DAB2 DAB9 71 DAB9 DAB1 70 DAB1 DAB8 69 DAB8 DAB0 68 DAB0 SDA2 67 66 65
(12)
R85 R100 0
TP48 ANT2 C120 1000p
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39
C100 10p C62 3p
R61 C58 C86 NC 10p 22R
10K
103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128
TP40
C105 10P 5600P C72
34 33 32 31 30 29
TP16
33N
(11)
C45 0.1u
ANT1
R60 L3
C73
0.068u
C82
C121
C122
(20)
R33 N.M. 10k C129 10p 0.22u C28 AD0 AD1 AD2 AD3 AD4 AD5 AD6
TP46 WE RE P3[6] SK SO C123 TP45 RXDSG 100p RFCLK
2p
0.9V
TP44 11
GND
GND 18
100p
100p
1 VDDIO 3.0V 2 VSS 0V 3 AD8 4 AD9 5 AD10 6 AD11 7 AD12 8 AD13 9 AD14 10 P3[7]/PD7 11 P3[1]/PD1 12 P3[5]/PD5 13 P3[4]/PD4 14 P3[3]/PD3 15 P3[2]/PD2 16 VDD 1.9V 17 VSS 0V 18 RFCLK 19 VDDRF 1.9V 20 VSSRF 0V 21 Xtal1 22 CAP 0V 23 AVS 24 AVD 1.8V 25 RSSI 26 RDI 27 CMPREF 28 TDO 29 AD15 30 AD16 31 AD17 32 AD18 33 AD19 34 AD20 35 AD21 36 AD22 37 AD23 38 LE
TP43
L1 C63 33p 4.7u TP17
R111
RDI
C37 0.1u
0.1u
(21)
C34 1u C39 1u
TP42 C128 100p PAON TP41
RX-DATA
C44
AD7 AD8 AD9 AD10 AD11 AD12 AD13
ANT1 ANT2 PAON RXDSG
RFCLK
(23)
RSSI RDI
TDO
AD14 AD15 AD16 AD17
(22)
10.368MHz burst
10.368MHz
N.M. R40 C43 12p X1
LE
: No Components
840mV p-p
C42 30p
(24)
10.368MHz
KX-TCD505GM/GV: SCHEMATIC DIAGRAM (BASE UNIT)
C84 2p
12 13 14 15 16 17
RXDSG SYRI GND GND GND GND
IC2
C54 4.7u
68p C55
R113 22k
C30
0.1u
(16) (17) (18) (19)
100p
C51
C48
103:LDO1_sense 104:LDO1_CTRL 105:LDO2_CTRL
R87
10K R88 10K
NC
IC4
C83
R86 10K
4.2V
2p
4.7u
1u C33
VBAT2 4.1V VBAT1 0V AVS2 0V AVD2 1.8V LSR+/REF LSR-/REF LSR_HS/CIDINVREF_HS/CIDOUT MICVREFVBUF AGND MIC+ VREF+/CIDIN+ RSTn AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7
SW1
TDO R112 0 RSSI TP18 TP47 R59 10k SK SO LE
2 3 4 5 6 7 8 9 10
GND GND TXDA RSSI VCC_OC GND SYCL SYDA SYEN
GND RF1 GND GND GND GND
(13) (14) (15)
ALE ACS0 ACS1 CLE
1 GND
GND 28 27 26 25 24 23 22 21 20 19
VCC_PA GND PAON PSEL GND GND GND RXDA GND
C71
0.9V 3.9V 3.5V
BE1n VDDE/HOLDACKn/INT5n/P1[5] HOLDn/INT4n/P1[4] ACS2/DACK1n/INT3n/P1[3] ACS0 ACS1/DREQ1n/INT2n/P1[2] DACK0n/INT1n/P1[1] DREQ0n/INT0n/P1[0] 0VVSS 3.0V VDDIO PCM_DIN/P0[7] 65:BE0n PCM_DOUT/P0[6] PCM_CLK/P0[5] 66:SCL2/P3[0] PCM_FSC0/P0[4] PCM_FSC1/P0[3] 3.0VJTIO/P0[2] URX/P0[1] UTX/P0[0] SCLK MI/READY WRN RDN P3[6]/PD6 DAC/ADC2 SK SO
R/B
TX-DATA
C64 ANT2 1 1p C104 6P