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Frequency 324KHz
4.3V 0V
TP14 F1 K2.2 C33 L2 10V220 10V220 47uH TP3 CN3 BATTERY+ BATTERY1 2 D1 C15 K4.7 C14

4.1V DC

(1)

2.4V
TP4

D G S Q1

R3 56

C2

(2) (3)

R2 R21 0.1 10K R4 TP5 L4 10uH 39V(M) D4 CN1 CHARGE+ CHARGE1 2 R6 3.3K Q2

0.3

(4)
2.65V
D2 NC

(5)

IC2
1 A0 A1 A2 GND VCC WP SCL SDA 8 7 6 5 2

TP6 L5 10uH Q3

3 4

0V

(6)
PX.4 PX.3 PX.2 PX.1 PX.0

C27 'BATT' 'SDA' 'SCL' TP12 TP7 PL.12 PL.11 PL.10 R11 0 PL.9 PL.8 PL.7 PL.6 PL.5 TP8 'VBACK' TP18 K0.1 K0.1 PL.3 C22 PL.2 PL.1 PL.0

(7)

'GND'

TP10

NC R16

PL.4

80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51

PL.13 PL.14 PL.15 PL.16 C21 PL.17 K0.1 PL.18 PL.19 PL.20 PL.21 PL.22 PL.23 PL.24 PL.25 PL.26 PL.27 PL.28

PL.12 PL.11 PL.10 VDDLI PL.9 PL.8 PL.7 PL.6 PL.5 VBACK/P0.7 R1 R2 MODE ISCLK I2DAT SUPEEP VSS VDD PL.4 PL.3 PX.4 PX.3 PL.2 PL.1 PL.0 PX.2 PX.1 PX.0 P0.3

S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 C0 C1 C2 C3 C4 C5

PL.0 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 CN2 PL.1 PL.2 PL.3 PL.4 PL.5 PL.6

PY.4 S8 '2' PY.3 S14 '8' S19 '1' S24 S7 '9' 'Cancel'

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

PL.29 PL.30 VDD VSS PL.31 PL.32 PL.33 PL.34 PL.35 DRON RXDSG RXDA SYEN SYDA SYCL TXDA PY.0 PY.1 PY.2 PY.3 PY.4 PAON SYRI VDD VSS ONSW CDT DCDCDRV DCDCCMR RESETQ

PL.13 PL.14 PL.15 PL.16 VSS VDD PL.17 P0.0 P0.1 PL.18 PL.19 PL.20 PL.21 PL.22 PL.23 PL.24 PL.25 PL.26 PL.27 100 PL.28

PX.4

PX.3

PX.2

PX.1

PX.0

81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

51:P0.6(AD4P)

0V 2.65V

0V 2.65V IC1 2.65V

2.65V 0V

P0.5(AD4N) P0.4(ADBAT) ADRSSI ADREF MICN MICP MICS BREF HOP HON VSSA VDDA CHARGE_START(P0.2) VDDLR VDDBAT VDDLO VDDPM XTAL LOAD VSSO

0V

50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31

C3

K0.1

(8) ~ (24)

C23 K0.1

R19 15K

K0.1 C20

PY.2 S6 'LEFT' PY.1 S25 'R' PY.0 S1 'DOWN' S22 'TEL BOOK' S23 'INT' S9 ' ' S17 '0' S2 'TALK' S4 '3' S11 'UP'

K0.1

S13 '5'

S15 '7'

S20 '4'

S18 '#'

PL.29 PL.30

PL.31 PL.32 PL.33 PL.34 PL.35

PL.7 PL.8 PL.9 PL.10 PL.11 PL.12 PL.13 PL.14 PL.15 PL.16 PL.17 PL.18 PL.19 PL.20 PL.21 PL.22 PL.23 PL.24 PL.25 PL.26 PL.27 PL.28 PL.29 PL.30 PL.31 PL.32 PL.33 PL.34 PL.35

C18

(25) (26) (27)

S16 S5 'REDIAL' '*'

S3 '6'

S21 'RIGHT' PY.0 PY.1 PY.2 PY.3 PY.4

(28) (29)

(30) (31) (32) (33) (34) (37) (38) ~

(1)

(2) (3)

(4) (5)

(6)

(7)

D3

R8

K0.1

C7

TX-AF
C30 K0.1

D10P

330

C8

TP11 R5 330 R7 330 C6 C5 6.3V4.7 R1 2.2K C4 K0.1 MIC

(8)
C29 K0.1

C28

K0.1

R22

0

D10P C12

C26 X1 R12 NC C1P C17 J18P C24 K0.1

D10P C10

NC

NC

(24)

RX-AF
TP1 CN5 C68 10P NC 1 SP+ 2 SPSP + R17 0 C67 10P

K0.1

C16

NC

TP16

TP17

R20 0

D10P C31

D10P

D10P C11

D6

D7 TP2

(25) (26) (27)
1V

(28)
NC D5

(29)

C25

NC

K1.0

C63 D10P

2.2 R23

K1.0 C64

D10P

TX - DATA

R24 0
GND 34 RF1 33 GND 32 GND 31 GND 30 GND 29

C62

1 2 3 4

GND GND

GND 28 27 26 25 24 23 22 21 20 19

C54

C60 K4.7

C66 C2P

11 GND

16 GND 17 GND

RX - DATA
TP13

12 RXDSG 13 SYRI 14 GND

(31) (32) (33) (34) (37) (38) ~

GND 18

TP19

L3 4.7uH

400µs typically 2.5V 0.5V 0V

KX-A143EXB/EXC/EXW SCHEMATIC DIAGRAM (HANDSET)

C57 J33P

C56

R18 33

IC3

C55 C2P

C2P

(30)

GND TXDA 5 RSSI 6 VCC_OC 7 GND 8 SYCL 9 SYDA 10 SYEN

VCC_PA GND GND PAON GND GND GND RXDA GND

C65

C2P

~
S10 'POWER'

1.8V DC IN TALK MODE

Frequency 10.368MHz

A201 TP15