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Loop Current
R58 10u/50V 1.8K C50 D10 R54

(1)
NC R48 47K C192

R52 NC NC 390

TCD340_240 ONLY

TCD340_240 ONLY K0.1u +3.0V ACS0 WRN C52 RDN NC

C193

R59

NC

D5

NC C49

R42

27K

NC

AD17 R91 10K

Q8 C194 NC R50 NC C45 D10p

IC6
NC
1 2 3 RDY/BUSY NC RESET WP NC NC NC VCC GND NC NC NC NC CS SCK SI SO NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC 32 31 30 29 28 27 26 25 24 23 22 21 20 19

IC8
AD16 AD15 AD14 AD13 AD12 AD11 AD10 AD9
R16227K
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 1 OE D0 D1 D2 D3 D4 D5 D6 D7 GND

IC9
NC
Vcc Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 CK 20

RDY/BUSY

+3.0V

J390p

R92

R43

K0.22u (2125)

8.2K

1.8K R45

NC

(2)

R44

R47 100K 12 (4532)

C46 K1u (2125)

R49 56 +3.0V

4 5 6 7

C47

R71 C86 NC K0.01u K2.2u K2.2u R46 27 (4532) C109 K1u C108 470K 100K R72

8 9 10 11

(2125)

(2125)

(2125)

R164 27K

R163 27K

R39 TP10 K0.22u C41 56
R98

SI +2.5V R161 NC D18 NC CS 1K SCK/CLK SI SO

12 13 14 15 16

AD18 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1

C40

C76

DAB11 DAB3 DAB10 DAB2 DAB9 DAB1 DAB8 DAB0

C103 K0.1u

TX_AF

DAB15 DAB7 DAB14 DAB6 DAB13 DAB5 DAB12 DAB4

DAB7
+3.0V

3 4 5 6 7 8 9 10

18 17 16 15 14 13 12 11

NC R157 NC
1

LED0 SEG5
R158 NC
8 7 6 5

DAB14 DAB6 DAB13 DAB5 DAB12 DAB4

SEG6 SEG7 SEG8 SEG9 SEG10
+3.0V

C104

RA2 2 NC 3
4

R94

IC10
NC
1 OE D0 D1 D2 D3 D4 D5 D6 D7 GND Vcc Q0 20 19

NC

R95 NC NC

DAB11

2 3 4 5 6 7 8 9 10

COM1 COM2 SEG1 SEG2 SEG3 SEG4

DAB3
18

SO

DAB10
17

NC R160 18 Q1 NC
Q2 Q3 Q4 Q5 Q6 Q7 CK 17 16 15 14 13 12 11 1 8 7 6 5

DAB2 R93 NC DAB9 DAB1 DAB8 DAB0

RA1
2

(3)

NC
3 4

R96 NC R97 NC

ACS1

R99

LED0

(4)
+1.8V
1 A0 A1 A2 VSS

+3.0V

IC3
R35 100K
2 3

+3.0V C53
VCC WP SCL SDA

R376

1K

7

C57 J100p

K0.1u

8

6 5

(5) (6) (7)
+1.8V

4

Q6

R64 680K R65 R76 R77 R82

EEPROM

1K 10K 10K

R73

100 R74 1K R75 100

TX RX JTAG

+3.0V R56 10K R57 10K R33 47K R34

Q7

10K

J100p C89

J100p C90

(8) (9)

R55 47K NC

SCK/CLK SO

(10) (11) (12) (13) (14)
102 103 104 105 106 107

RDY/BUSY

SI

CS

J100p

C88

ANT_2 1

ANT_1 1

DAB15 DAB7 DAB14

DAB6 DAB13 DAB5 DAB12 DAB4

DAB11 DAB3 DAB10 DAB2 DAB9 DAB1 DAB8 DAB0

6.8nH

C79 C77

ACS0 NC DA1 1 2 3 NC ACS1 C139 C133

R63

L10 C171 C169 NC NC 0

C140 C6p

C141 C168 C6p

L9 NC C167 0 NC

101

100

LINEOUT LINEREF VBAT3/RINGING P2[6]/stop_charge P1[7]/CHARGE/INT7n P1[6]/PON/INT6n P2[7]/SPIDO TM DAB15 DAB7 DAB14 DAB6 DAB13 DAB5 DAB12 DAB4 P2[5]/SDA1 P2[4]/SCL1 P2[3]/ADC1 P2[2]/ADC0/CLK100 P2[1]/PWM1/SPICLK P2[0]/PWM0/SPIDI VDDIO VDD VSS DAB11 DAB3 DAB10

DAB2 DAB9 DAB1 DAB8 DAB0 SDA2

99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65

C142

C143

D10p

KEY_INT3 C87 K0.1u R367 1K R366 1K
1 2 3 4 8 7 6 5

L3 C144 C6p 33nH C138

IC4
BBIC
63:VDDE/HOLDACKn/INT5n/P1[5] 64:BE1n 65:BE0n 66:SCL2/P3[0] 101:LINE_IN+ 102:LINE_IN103:LDO1_Sense 104:LDO1_CTRL

180

NC L4 0 C137 ANT NC

K4.7u

C145

C146

(17) (18)

RA3 1.2K R374 0

K4.7u

C149

C150

VDDIO VSS AD8 AD9 AD10 AD11 AD12 AD13 AD14 P3[7]/PD7 P3[1]/PD1 P3[5]/PD5 P3[4]/PD4 P3[3]/PD3 P3[2]/PD2 VDD VSS RFCLK VDDR F VSSRF Xtal1 CAP AVS AVD RSSI RDI CMPREF TDO AD15 AD16 AD17 AD18 AD19 AD20 AD21 AD22 AD23 LE

+3.0V

C151

NC

NC

AD1 AD2 AD3 AD4 AD5 AD6 AD7

R365 1K
1 2 3 4 5 6 7 8

GND A_1 GND GND GND GND GND GND

KEY_OUT5

32 31 30 29 28 27 26 25

WRN RDN

C147

NC

NC

A_2

+2.5V

(1005) 4.7K

K1000p (1005) R134

R373 0 AD15 AD16 AD17 R372 0 AD18

0 R371

C157

R122

D7p (1005)

NC (1005)

C81 K0.1u

C82 K0.1u

R88 0

R89 0

D10p (1005)

K0.1u

K0.1u

C158

0

(19)
C71

R90 0

RSSI

C84

RESET

AD8 AD9 AD10 AD11 AD12 AD13 AD14

9 10 11 12 13 14 15 16

0 (1005)

SYRI GND GND SYEN SYDA SYCL GND RX_DATA

R123

J150p (1005) C136

C164

GND ANT2 VCCPA GND GND VCC_OC GND RSSI

IC2
RF_UNIT

GND GND GND ANT1 RESET GND TXDA GND

24 23 22 21 20 19 18 17

180

(16)

KEY_OUT0 KEY_OUT1 KEY_OUT2 KEY_OUT3 KEY_OUT4

+2.5V R119

D10p

(15)

LDO2_CTRL VBAT2 CIDIN+ 108 AVS2 109 AVD2 110 LSR+/REF 111 LSR-/REF 112 CIDIN113 CIDOUT 114 MIC115 VREF116 VBUF 117 AGND 118 MIC+ 119 VREF+ 120 RSTn 121 AD0/EXT_MEMORY 122 AD1 123 AD2 124 AD3 125 AD4 126 AD5 127 AD6 128 AD7

HOLDn/INT4n/P1[4] ACS2/DACK1n/INT3n/P1[3] ACS0 ACS1/DREQ1n/INT2n/P1[2] DACK0n/INT1n/P1[1] DREQ0n/INT0n/P1[0] VSS VDDIO PCM_DIN/P0[7] PCM_DOUT/P0[6] PCM_CLK/P0[5] PCM_FSC0/P0[4] PCM_FSC1/P0[3] JTIO/P0[2] URX/P0[1] UTX/P0[0] SCLK MI/READY WRN RDN P3[6]/PD6 DAC/ADC2 SK SO

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

R370 R369 R368

1K 1K 1K

KEY_INT0 KEY_INT1 KEY_INT2

R120 NC

R121 NC

R118

6.8nH

K0.1u K0.1u

L8

L5

A_1

R117 1K

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 31 32 33 34 35 36 37 38

RESET

R127 NC (1005) C166 R126 NC C156 100 (1005)

R87

TDO D10p (1005)

RESET

RFCLK

RSSI

RDI

TDO

LE

SK

S0

C163

CLK RFCLK R125 NC (1005) J22p (1005) C165 R137 82 (1005) R129 R128 1K (1005) 390 (1005) C153

R146

10K

J30p R40

C43 J12p

0 (1005)

R132

(20)
KEY_OUT6

C42

800mV p-p
LE

NC

10.368MHz TX DATA 2.5Vp-p
R135 D10p (1005) C155 C2p (1005) 4.7K (1005) C154 R136 1K (1005) S0

C2p (1005)

D10p

4.7K (1005)

C368 J100p

(1005)

+3.0V

LED1

X1 10.368MHz

(1005)

C159

3.3M

C160

(21)

L11

10

4.7K (1005) C161

C2p (1005) C162

KEY_OUT6

KEY_OUT5

KEY_OUT4

KEY_OUT3

KEY_OUT2

KEY_OUT1

KEY_OUT0

KEY_INT3

KEY_INT2

KEY_INT1 KEY_INT0

K0.1u

C58

1K (1005)

R130

(1005)

10.368MHz
LED1 LED0

SK

R131 D10p

NC (1005)

R133

RX DATA

ANS_LED

SEG10

COM2

COM1

SEG5 LED0

SEG4

SEG3

SEG2

SEG1

SEG9

SEG8

SEG7

SEG6

R147

R149

R151

R153

R142

R145

R140

390

390

390

390

R144

R148

R150

R152

R143

R141

390

390

390

390

390

390

390

SEG4 30

SEG3 29

SEG2 28

SEG1 27

COM2 26

COM1 25

SEG10 24

SEG9 23

SEG8 22

SEG7 21

SEG6 20

SEG5 19

NC 18

ANS_LED 17

GND 16

1APVCC 15

NC 14

INUSE_LED 13

SP_LED 12

KEY_OUT6 11

KEY_OUT5 10

KEY_OUT4 9

KEY_OUT3 8

KEY_OUT2 7

KEY_OUT1 6

KEY_INT4 5

KEY_INT3 4

KEY_INT2 3

KEY_INT1 2

KEY_INT0 1

CN6

RDI

NC : No Components KX-TCD230 SCHEMATIC DIAGRAM (BASE UNIT)

C106

FLASH

R159

NC

DAB15

2

19

R156

ANS_LED

C107