kx 3 schematic diagram dec 2012

Elecraft KX3 Schematics March, 2013 This document contains the schematics for the Elecraft KX3 transceiver and its internal options. The schematics are preceded by a block diagram for context. The schematics are ordered as the basic KX3, then various options. KX3 Block Diagram KX3 RF Board KX3 Control Panel KXPD3 Paddle KXAT3 ATU KXFL3 Roofing Filter KXBC3 Battery Charger and Real Time Clock

KX3-2M2 m Xvtr

RD15HVF1

RF Board I2C and SPI

T/R Switch

W Burdick/L Johnson/R Heineck/R FriessRev: 29 March 2012

160 m to 6 m

Si570L.O.

Rx Mix

CMOS Switch

CMOS Switch

Tx Mix

Rx AF Preamp and LPF

Tx AF Amp(OPA4376)

IQ DAC(PCM1773)

IQ ADC

DSP

(ADSP-21479)

Rx RF Preamp/

Attenuators

Tx PA Temp

Sensor

Voltage Regulators

MCU(18F87K22)

LCD Controller

FP Controls

KXAT3 ATU

(8L & 8C) + BCB Filter

10 W Amp

SP/PH DAC

MicADC

(TLV320 AIC3105)

PC I/ORECEIVE TRANSMIT

Tx & Rx

KEY

SPKRAmp

RF BOARD

ATU (Option)

CP BOARD

I2C from CP

160 m to 6 m

160 m to 6 mANTENNA

EEPROM

SPI

2 megabyte FLASH

KXBC3 Battery Charger + Clock (Option)+12V Ext

IO Drivers (SPI)

PWR/SWR BRIDGE LO Temp Sensor

2 meterANTENNA

2 m (Option)

KXFL3 (Option)

Audio Filters

2x SGA7489 Driver2x RD15HVF1 PA

RX IQ Out

FST3257

FST3253

L.O. output is at the operating frequency.

There is no IF frequency, the receiver and transmitter are direct conversion on 160m 6m.

All modulation and demodulation are performed by the DSP.

5th Order/7th OrderElliptic LPF

GPA0 21GPA1 22GPA2 23GPA3 24GPA4 25GPA5 26GPA6 27GPA7 28

A015A116A217

GPB0 1GPB1 2GPB2 3GPB3 4GPB4 5GPB5 6GPB6 7GPB7 8

RESET18INTB19INTA20

Vdd9

Vss10

CS11SCK12SI13SO14

U10MCP23S17

5V3

3V3

Date: Sheet of

Title Rev

Elecraft, Inc. Copyright (C) 2012

D

Thermal Coupling3V3

C158100uF

TemperatureSensor

CPInterface

1 5


A015A116A217


RESET18INTB19INTA20

Vdd9

Vss10

CS11SCK12SI13SO14

U11MCP23S17

1 2 3 4 5 6 7 8 9

101112131415161718192021222324252627282930

J5

12V

PATEMP

TXITXQ

RXIRXQ

VFWDVREFL

3R

OE2 GND 3CLK 4Vdd 6

SDA7SCL8

U53Si570 D2

3

Cl

1

Q 6

Pr4

Q 5

U52A74LVC74

D12

11

Cl

13

Q 8

Pr10

Q 914

7

U52B

C134

1uF

L19

RFC

L27FB

CLKc

CLKs

KX3 RF Board - Interface

July 18, 2012

Gnd 2Vo 3V+4

Gnd5

1

U4LM20

R2220

LOW_CLK

C15947uF

R77

100R78

22

L31

RFC

C1331uF

C30.1uF

G2

Out 1In3

U55MC78L05A

5VA

3V3

L26

FB

3V3

C20.1uF

R. Heineck

CT0.1uF

C1570.1uF

C580.1uF

C590.1uF

C1051uF

C1630.1uF

I2C_SDAI2C_SCL

nRX-15dB_AF

RX-15dB_RF

ISO_AMP_HI

nISO_AMP_ONPREAMP_ON

14

C122A100pF

23 C122B

100pF

14

R1AA10

23

R1AB10

C16210uF

C16410uF

Quadrature LO

14

R41ANot Installed

23

R41BNot Installed

R70

49.9

R72

2.20k

AF

C150820pF

C1E820pF

R8

49.9

AF

R9

2.20k

C148100uF

C149100uF

32

14

J2

AF

I/Q Out

1+3

-4

526

U7LT6230

1+3

-4

526

U60LT6230

AF

5VA

23R71B

1k

14R71A

1k

CE0.1uF

AF

5VA

AF

CF

10uF

C151

10uF

AUX_RXI AUX_RXQ

AUX_EN

nCS1BSCKBMOSIB

MISOB

TXDACREF

nKXFL3_WIDEKXFL3_SEL

ATU / XVTR

12V

1 2 3 4 5 6 7 8 910

J6

23

C56B100pF

14

C56A100pF

14

C57A100pF

23

C57B100pF

32

14

J1

ACC2

CP_SPARE1

CP_SPARE3 (ADC)

Dig I/O

ADC

nCS

MOSI

MISO

SCK

Vin8

Gnd6Inh5

Out 1

GND 3GND 2GND7

U20LE80C

8VA

C6810uF

BPF80_160BPF40_60

BPF15_17

BPF160

BPF20_30

BPF10_12BPF6BPF_BYPASS

B11

Gnd 2B03

S6

Vcc 5

A 4

U2NC7SB3257

B1 1

Gnd2B0 3

S 6

Vcc5

A4

U1NC7SB3257

LOW_CLK

C10.1uF

5VA

Quadrature LO

CLR11

QA 9QB 7QC 6QD 5QE 3QF 2QG 4QH 13QI 12QJ 14QK 15QL 1

10

Vss8

Vdd16

U5474VHC4040

C50.1uF

R510k

TX_HI_DRVPA_LO_ZPA_ON

R73

499

42

35

1

U3NC7SZ125

nXVTR_CLK_EN

nXVTR_CLK_EN

42

35

U59NC7SZ14

5VA

J4

Q52N7002

CL0.01uF

C1H1000pF

LPF160

LPF15_17LPF20_30LPF40_60LPF80

LPF10_12

RF2

C671uF

C40.1uF

C9G0.1uF

C9B0.01uF

SW3

SW4

LPF6

R81

39

C1611uF

P1

Chassis

R92

3.3k

R91

3.3k

Vin1

Gnd2En3

Out 5

Ref 4

U67MIC5235

C1701uF

C1714.7uF

R937.32k

R942.20k

5V3

5V3

12V

12VA

GND

C177

0.1uF

C178

0.1uF

R954.7

AF

AF

LO_TEMP

C180

0.01uF

RELAY_COM

RF1 (SPARE)

GPIO

GPIOC185470uF

Vin1

Gnd2En3

Out 5

Ref 4

U67MIC5235

1

1

2

2

3

3

4

4

5

5

6

6

7

7

A A

B B

C C

D D

E E

RX_IN

nRX-15dB_AF

C1300.1uF

C127

0.1uF

R492.2

R463.3k

R47

560

L2922uH

C1321uF

Date: Sheet of

Title Rev


KX3 RF Board - RX D

July 18, 2012 2 5

C1380.1uF

PREAMP_ON

1+3

-2

U58AAD8599

R65

1.43k

AF

12VA

CLKs

CLKc

RXI

RXQ

12VA

RX_I

RX_Q

4

7+5

-6

8

U58BAD8599

R68

1.43k

R54130

R1C

2.20k

AF

4

5

6

1

3

T3

12

Gnd 3

V+ 4

6 V-7

8

U57DG449

12VA

R57

130

R32.20kAF

C141

10uF

C136

10uF

CJ5600pF

LE

470uH

LD

470uH

R6402

C145

47uF

C155

47uF

R69

340

AF

AF

C147100uF

C137100uF

AFAF

AF

AF

C152

6800pF

C1394700 pF

CD

4700 pF

CH

6800pF

CM0.1uF

4

7+5

-6

8

U8BOPA2209

1+3

-2

U8AOPA2209

AF

AF

Quadrature Mixer LN AF Amp (15 dB)

Diplexer

LN RF Preamp (20 dB)

R53499

R51499

R50

365

R52

365

1

2

3Gnd4

5

67

Vcc 8

U9FSA1259A

5VA

AF

C1400.1uF

AF

R58910

R55910

CK0.1uF

1

2

3Gnd4

5

67

Vcc 8

U6FSA1259A

5VA

AF

AUX_RXIAUX_RXQ

AUX_EN

C1F0.1uF

AF

R4868

Q4NE46134

nKXFL3_WIDE

KXFL3_SEL

KXFL3_SEL

RX-15dB_RF

15 dB RF Attenuator

R44499

RF

49.9

R1499

C1D

0.1uF

RD10k

C1B0.1uF

C123

0.1uF

nISO_AMP_ON

8VA

R42158

R45130

ISO_AMP_HI

23

REB10k

1 4

REA10k

Isolation Preamp (0 dB / 10dB)

C1C0.1uF

C1G100uF

1

2

34

5

6

U39PE4283

1

2

3 4

5

6

U37PE4283

1

2

34

5

6

U40PE4283

1

2

34

5

6

U41PE4283

1

2

3 4

5

6

U47PE4283

R793.3k

5VA L30

FB

R7510k

R.Heineck, B.Friess

R37

47k

12

Gnd 3

V+ 4

6 V-7

8

U56DG449

5VA

5VA

C154

10uF

C8

10uFAF

12VA

KXFL3OPTION

C1240.1uF

C1261uF

C1280.01uF

C75600pF

R74165

R7402

R76165

C160220uF

C156100uF

2

43

5

76

11

910

14

1213

1

816

OE15

U5174CBT3257

2

43

5

76

11

910

14

1213

1

816

OE15

U5074CBT3257

mixer_in

mixer_in

Post Amp (20 dB / 5 dB)

R4347k

C60.1uF

63

R56C22k

54

R56D22k

72

R56B22k

81

R56A22k

6 3

R67C22k

54

R67D22k

81

R67A22k

7 2

R67B22k

AF

AF

C90.1uF

1 2 3 4 5 6 7 8 9101112

J3

I2C_SDAI2C_SCL

3V3

14

R1BA2.7k

23R1BB

2.7k

R60

499

R59

499

C129

0.1uF

C125

0.1uF

CN0.01uF

CZ0.01uF

C1J220uF

C146

10uF

C144

10uF

LF

470uH

LG

470uH

C1K1000pF

C1L1000pF

RQ

24

RT

24

R66

340

23

R80B4.7k

14

R80A4.7k

C1M22uF

C1N22uF

1

2

34

5

6

U36PE4283

R3624

R3473.2

R35

130

L28FB

3V3

1

2

3

4

5

6

7

DIS8

+-

U45AD8099

1

2

34

5

6

U46PE4283

Q32N7002

C1690.01uF

R83

47k

R8449.9

C1Q3.3pF

C1310.1uF C1R

10uF

C1720.1uF

C1730.1uF

C15310uF

AF

12VA

AF

C1350.01uF

C1840.01uF

R10973.2k

R9973.2k

R11073.2k

1

1

2

2

3

3

4

4

5

5

6

6

7

7

A A

B B

C C

D D

E E

Date: Sheet of

Title Rev


KX3 RF Board - TX D

July 18, 2012

TX_DRV

TXI

TXQ

OE1 1

S1 2

1B431B341B251B16

OE2 15

Vcc 16

Gnd8

2B1102B2112B3122B413

S0 141A 7

2A 9

U48FST3253

3R

CLKsCLKc

AF

5VA

R61

39

5VA

Gnd 2Vo 3V+4

Gnd5

1

U28LM20

T6

T5

Q7

RD15HVF1

Q6

RD15HVF1

16

52

34

T4

R39

100

R32

100

L2322uH

L2522uH

312

4

U43SGA7489

R402001W

R312001W

C9D36pF

C9E36pF

L220.12uH

PATEMP

3V3

R29

220

Thermally coupled to Q6 & Q7

PA_OUT

PA_IN

C1180.1uF

L24FB

C167470uF

12V

R33100

R38100

PA_LO_Z

RELAY_COM

R30

10

31

24

U29SGA7489

23RNB

100

14RNA

100

3V3

3 5

2,7

3,6

4,5

K1

81

K1

C9F0.1uF

C143

not installed

C142

not installed

6

4

1

3

T2

1+3

-2

U49AOPA4376

7+5

-6

U49B

411

14+12

-13

U49D

8+10

-9

U49C

AF

CC0.1uF

64

13

T1

8VA

C174

0.1uF

1+3

-4

526 U26ADA4860-1

RA

249

RC

499

3R

0dB / 6dB

TX_HI_DRV

PA Driver

10W PA

TX Quadrature Modulator

CG0.1uF

C660.01uF

C120

0.1uF

C108

0.1uF

C119

0.1uF

C1110.1uF

C1210.1uF

C9C0.1uF

C69

0.1uF

C1030.1uF

C1060.1uF

C1170.1uF

C51

0.1uF

I2C_SDAI2C_SCL

5

7

6

10

8

9

Vdd 14SCL2SDA3

Vss 4WP 11A01

A113A212

A A

B B

U44MCP4661

23RMB

100

14RMA

100

RG2.20k

RK2.20k

R64

2.20k

R62

2.20kRH

2.20k

R63

2.20k

RL

2.20k

RJ

2.20k

C1150.1uF

CP0.1uF

C1070.1uF

TX Preamp

(sh 5)

(sh 5)

(sh 5)

C1650.0027uF

C1660.0027uF

CQ0.01uF

CR0.01uF

TXDACREF

12PA_ON

R2410k

R.Heineck, B.Friess

RB499

PA_ON

4

5

6 3

2

1

U27FDC6330L

12V

R253.3k

R2810kC104

0.01uF

14

RPA10k

23

RPB10k

Vin1

Gnd2En3

Out 5

Ref 4

U42LP2985-3.3

C1144.7uF

C1131uF

C112

0.1uF

C109

0.1uF

C1020.1uF

C700.1uF

R2749.9

14R26A

10k

2 3R26B

10k

1

2

34

5

6

U21PE4283

3V3

C1680.01uF

R85

47k

C1160.1uF

C1T0.1uF

R962001W

R972001W

TX-TP1

C1791uF

C1P68pF

C1U68pF

C1A0.01uF

C110Not Installed

RV

10

RU

10

R9873.2k

1

1

2

2

3

3

4

4

5

5

6

6

7

7

A A

B B

C C

D D

E E

BPF6

Date: Sheet of

Title Rev


KX3 RF Board - Bandpass Filters D

July 18, 2012 4 5

BPF_A BPF_B

160m_80m

60m_40m

30m_20m

17m_15m

12m_10m

6m

L5

0.10uH

L639nH

L439nH

C74300pF C72

300pF

C7312pF

L8

0.18uH

L70.10uH L9

0.10uH

C75470pF

C77470pF

C7618pF

L11

0.22uH

L120.15uH L10

0.15uH

C82620pF

C80620pF

C8130pF

L1782nH

C91680pF

C892200pF

C9056pF

L14

0.75uH

L131.0uH

L151.0uH

C831200pF

C851200pF

C84100pF

L21

15uH

LC4.7uH

L204.7uH

C95750pF

C94150pF

C931000pF

C961300pF

1

2

34

5

6

U24PE4283

C98750pF

C99150pF

CA1000pF

C971300pF

1

2

34

5

6

U34PE4283

R22

47k

R19

47k

R20

47k

R18

47k

R17

47k

R16

47k

1

2

34

5

6

U32PE4283

1

2

3 4

5

6

U35PE4283

1

2

3 4

5

6

U30PE4283

1

2

3 4

5

6

U19PE4283

1

2

3 4

5

6

U22PE4283

1

2

3 4

5

6

U25PE4283

1

2

34

5

6

U18PE4283

1

2

34

5

6

U17PE4283

1

2

34

5

6

U23PE4283

1

2

3 4

5

6

U16PE4283

R21

47k

3V3

3V3 3V3

3V3

3V33V3

3V3 3V3

3V33V3

B. Friess, R.Heineck

C9A0.1uF

C920.1uF

3V3

BPF_BYPASSR15

47k

1

2

34

5

6

U12PE4283

1

2

3 4

5

6

U13PE4283 3V33V3

C881100pF

1

2

34

5

6

U31PE4283

C1000.01uF

C870.01uF

C1010.01uF

C860.01uF

C780.01uF

C710.01uF

C790.01uF

CB0.01uF

C600.1uF

L180.62uH

LA0.39uH

L16

0.39uH

LB

0.27uH

BPF15_17

BPF10_12

BPF160

BPF80_160

BPF40_60

BPF20_30

1

2

34

5

6

U33PE4283

3V3

1

2

34

5

6

U63PE4283

1

2

3 4

5

6

U64PE4283

1

2

34

5

6

U61PE4283

1

2

3 4

5

6

U62PE4283

Opt. 6m LNA

3V3

RX

TX

RX

TX

R903.3k

R873.3k

R863.3k

R89

10k

R88

10k

BPF Bypass

3V

GEn

O I

3V3

R10873.2k

R10773.2k

R10173.2k

R10273.2k

R10373.2k

R10473.2k

R10573.2k

R10673.2k

1

1

2

2

3

3

4

4

5

5

6

6

7

7

A A

B B

C C

D D

E E

160 m

80 m

20 / 30 m

15 / 17 m

10 / 12 m

T7

T8

6 m

LPF160

LPF15_17

LPF20_30

LPF40_60

LPF80

LPF10_12

C506.8pF

C4818pF

C520pF

C4968pF

C4722pF

L35

0.29uH

C5462pF

C43150pF

C4575pF

C5536pF

C4413pF

L34

0.23uH

L37

0.33uH

C10100pF

C12220pF

C4168pF

C1147pF

L36

0.40uH

C4022pF

C31360pF

C29

300pF

C301000pF

L44

1.5uH

C20470pF

C21

100pF

C24180pF

C28750pF

L46

3.2uH

C222000pF

C27560pF

C251000pF

L39

0.34uH

C38180pF

C37270pF

C15240pF

C36180pF

L38

0.66uH

L40

0.53uH

C13150pF

C1443pF

L42

0.91uH

C32390pF

C34620pF

C19560pF

C33220pF

L41

1.4uH

L43

1.2uH

C16330pF

C1762pF

40 / 60 m

R10

49.9

R13

49.9

VR

EF

L

VF

WD

Date: Sheet of

Title Rev


KX3 RF Board - LPF & T/R D

July 18, 2012

RELAY_COM

5 5

8 1K2

8 1K6

8 1K5

8 1K4

8 1K3

8 1K7

23

D1B BAS70

14

D1A

C260.01uF

C390.01uF

C350.01uF

C180.01uF

C230.01uF

C420.01uF

C53

0.1uF

Antenna

23

R11B100

14

R11A100

14R12A

100k

2 3R12B

100k

or ATU

7

6

5

K2B

2

3

4

K3A

2

3

4

K4A

2

3

4

K7A

7

6

5

K3B

7

6

5

K4B

7

6

5

K7B

D3MA4P7102F

L1100uH

L33.9uH

Q2ZVN4525

R14150

PA_OUT

D2S1MB

L2100uH

R23

2202W C65

0.1uF

C610.47uF

1

2

3 4

5

6

U38PE4283

BPF_A

1

2

34

5

6

U15PE4283

BPF_B

PA_IN

C63

1000pF

3R

C640.1uF

3V3

12PA_ON42

35

1U14NC7SZ125

3V3

1234

J7

RX_IN

TX_DRV

1.8 MHz HPF

Q12N7002

L47

3.9uH

L45

2.0uH

L33

0.13uH

C620.01uF

2

3

4

K2A

7

6

5

K5B

7

6

5

K6B

2

3

4

K5A

2

3

4

K6A

7

6

5

K8B

2

3

4

K8A

Bypass for 6m

CW0.01uF

CU0.01uF

C181

0.01uF

CY0.01uF

8 1K8

LPF6CX

0.01uF

1

2

34

5

6

U66PE4283

1

2

3 4

5

6

U65PE4283

L483.9uH

L32

0.16uH

RLY_COM

LPF-BLPF-A

GDT1

C182

0.01uF

C183

1uF

C46

1uF

RFTP

C17522pF

L490.33uH

R100

AF

AF Spacer for battery holder

C1V10pF

1

1

2

2

3

3

4

4

5

5

6

6

7

7

A A

B B

C C

D D

E E

55

4

4

3

3

2

2

1

1

D D

C C

B B

A A

2010110101 G

KX3 Control Panel: TOP

Elecraft, Inc. Copyright (C) 2010, 2011, 2012.L Johnson

B

1 8Monday, June 18, 2012

Title

Size Document Number Rev

Date: Sheet of

Sheet 3

CONTROLS

OFSBB

VLCDBKLT

SELOB

MAINENCA

OFSBA

SELOA

SPDMICB

GAINBGAINA

SCAN[105..100]

SPDMICA

LEDTXLEDDELTALEDOFSLEDBVLEDBRT

MAINENCB

VLCDBKLT1

nPWRBnPWRA

ATABMA

ENCEN

Sheet 7

MCU

LEDTXLEDDELTA

LEDOFSLEDB

ISENSEVFWDVRFL

VSI570VPATEMP

VCONTRAST

VLCDBKLT

nRST

SCL0

TXD

DSPBUSY

OFSBAOFSBB

RXD

SELOASELOB

SDA0

3R

SCAN[105..100]

nDASHnDOT

VPTTUPDN

3T

MOSIB

SCKB

VLEDBRT

MAINENCAMAINENCB

SPDMICASPDMICB

MISOB

GAINAGAINB

DSPDATA

HPDET

BOOTSPI

nCS1B

nCS0

SPARE3

SPKRLVL

VLCDBKLT1

nPWRHOLD

I2CEN

MISOMOSISCK

nPWRSW

nDASHALTnDOTALT

ATABMA

VBCR

ENCEN

SPARE1

Sheet 2

CONNECTORS

HPLOUT

HPDET

TXD

VPTTUPDN

RXD

nDOTnDASH

HPROUT

MICAUD

ISENSE

RXQ

VFWD

3T

TXQ

MOSIB

SCKB

RXI

VSI570

SCL0

TXI

MISOB

nCS1B

VPATEMP

SDA0

3R

SPARE3

VRFL

nPWRB

nPWRHOLD

I2CEN

TXDACREF

nPWRSW

nDOTALTnDASHALT

nPWRA

VBCR

SPARE1

AFGND

Sheet 4

DSP

nRST

BOOTSPI

MISOMOSI

nCS0SCK

SDA1SCL1

SYNC3V3

Sheet 8

POWER

SYNC3V3

Sheet 6

LCD

VCONTRASTSCL0SDA0

Sheet 5

IFAUDIO

nRST

RXI

MICAUD

RXQ

TXI

SDA1

TXQ

HPLOUT

SCL1

HPROUT

SPKRLVLDSPDATADSPBUSY

TXDACREF

AFGND

LEDTXLEDDELTA

SCAN[105..100]

nCS0

DSPDATA DSPDATADSPBUSY DSPBUSY

BOOTSPI

nRST

nRST

nRST

SDA1SCL1

SCK

SPKRLVL SPKRLVL

VCONTRAST

VLCDBKLT

VLEDBRT

LEDOFSLEDB

SPDMICA

OFSBB

SELOA

MAINENCA

SELOB

OFSBA

GAINB

SPDMICB

GAINA

MAINENCB

VLCDBKLT1

MISOMOSI

SCL0SDA0

ATABMA

nPWRB

SDA0

nPWRA

nPWRA

HPROUT

nDOT

TXQ

nDOTALT

I2CEN

MISOB

3T

RXD

SPARE3

VBCR

VRFL

TXI

VSI570

nDASHALT

nPWRB

MOSIB

VPTTUPDN

TXD

HPLOUT

nCS1B

RXIRXQ

nDASH

SCL0

VFWD

nPWRHOLD

HPDET

nPWRSW

VPATEMP

3R

MICAUD

SCKB

ISENSE

ENCEN

TXDACREF

SPARE1

SYNC3V3

SYNC3V3

AFGND

55

4

4

3

3

2

2

1

1

D D

C C

B B

A A

Pin 9 = KEY

Pin 3= KEY

2010110101 G

KX3 Control Panel: Connectors


B


Title


Date: Sheet of

RXD

TXD

VPTTUPDN

HPDET

MICAUD

nCS1B

SPARE1

SPARE3

VPATEMP

VSI570

TXDACREF

VRFL

VFWD

3R

3T

TXI

TXQ

SDA0

SCL0

MOSIB

MISOB

SCKB

nPWRHOLD

nDOT

nDASH

RXI

RXQ

HPLOUT

HPROUT

nDASHALT

nDOTALT

I2CEN

VPTTUPDN

SDA0

12VUNSW

nPWRSW

SCL0

BATTSPAREBATT-

AFGND

3V3D

3V3D

12V

3V3D

12V

12V

3V3D

3V3D

3V3D

R77 402R

R74 100RCN8

0.01 uF

1

2

3

4

R1084.70K

J1

9-15VDC

123

P4

BATTERY

1 23 45 6

R105 220R

J4

KEY

3

421

R43 220R

P3

KXBC3

123456789

10

C109 N.P.

R79 10.0K

+

C647 uF/25V

C130 0.1 uF

R25

10.0KTAB1GND

1

J9

PADDLE

1234

CN2

1000 pF

1

2

3

4

J8

MIC

1234

R47 220R

Q22N7002K1

3

2

U17

NC7WB3125

2

3

6

5

4

8

7

1

1A

2A

1B

2B

GND

VCC

OE2

OE1

C116 1 uF

C127 1 uF

C128 100 pF

D10

CMS04

R62 220R

P2

CON30

123456789101112131415161718192021222324252627282930

Q9FDS6375

4

5

26

378

1

R70 100K

R118 1.00K

C120N.P.

+

C7

10 uF/16V

D6

CMS04

R110 330R

R94 220R

R1111.00K

C126 1 uF

R87 10R

C270.1 uF

Q7

PMGD780SN

5

32

4

6

1

R82 220R

J3

PC

3

421

R26 220R

R11210.0K

C111 0.1 uF

R10710.0K

R75 100R

C118 N.P.

D5

MMBD914

1 3

C119 0.1 uF

C115 1 uF

CN13100 pF1 2

3 4

CN12 0.01 uF

1 2

3 4

C1230.047 uF

R85 10.0K

C1220.01 uF

U21

ZXCT1010

4

2

35VS+

GND

IoutVS-

R100 220R

R115 220R

R84 402R

R106 0.05R

CN1

1000 pF

1

2

3

4

R109

4.70K

R44 4.70K

FB1 BEAD

R1174.70K

J5

PHONES

3

421

+

C447 uF/25V

C106 100 pF

C1070.1 uF

R83 220R

+

C11

10 uF/16V

CN6

0.01 uF

1 2

3 4

C110 0.1 uF

R29

10.0K

CN7100 pF1 2

3 4

CN5

0.01 uF

1

2

3

4

R99 220R

C117 1 uF

TAB2GND

1R114 220R

D3

MMBD914

1

3

C108 0.1 uF

C129 0.1 uF

R11310.0K

Q8

BSS84

1

3

2

+

C947 uF/25V

Q1MMBT3904

1

2

3

R59 100K

+

C1047 uF/25V

R86 10R

D9

BZX84B3V6

13

HPLOUTHPDET TXD

VPTTUPDN

RXD

nDOT

nDASH

HPROUT

MICAUD

nCS1B

SPARE3

VPATEMP

VSI570

VRFL

VFWD

3R

3T

TXI

TXQ

nPWRHOLD

SDA0

SCL0

I2CENSCKB

MOSIB

MISOB

SPARE1

ISENSE

nPWRSW

RXI

RXQ

nDASHALT

nDOTALT

nPWRA

nPWRB

VBCR

TXDACREF

AFGND

55

4

4

3

3

2

2

1

1

D D

C C

B B

A A

RED YEL GRN GRN

2010110101 G

KX3 Control Panel: Controls, Switcches and LEDs


B


Title


Date: Sheet of

SCAN100

SCAN100

SCAN102SCAN101

SCAN103

SELOB

SPDMICA

VLCDBKLT

SCAN104 SCAN102

SCAN105

SELOA

SCAN[105..100]

SCAN103

SPDMICB

SCAN101

VLCDBKLT1

GAINAGAINB

MAINENCA

MAINENCBSELOASELOB

SPDMICASPDMICB

VLEDBRT

ENCEN

MAINENCA

MAINENCB

OFSBAOFSBB

5VD

3V3D3V3D

3V3D

3V3D

3V3D5VD

3V3D

R1031.50K

R69 4.70K

LED2

B

2

1

R80

1.00K

S9

XIT

R5810R

LED3

TX

2

1

S20

DISP

R89

1.00K

S17

CMP R72 10.0K

RP2

10K

512346789 10

Q62N7002K1

3

2

R9510.0K

S12

XMIT

Z2 GAIN12345

6 7

ACOMB

SWSWCOMMTG1 MTG2

J6

VFOA

1234R57100R

S4

BAND-

S1

BAND+

R732.20K

Z5 OFSB12345

6 7

ACOMB

SWSWCOMMTG1 MTG2

S6

A>B

Q4

PMGD780SN

5

32

4

6

1

S16

SPOT

R81

1.00K

R8810.0K

S8

RIT

D8

BAT54C

1 3

2

Z3 HILO12345

6 7

ACOMB

SWSWCOMMTG1 MTG2

S19

RATE

LED4

DELTA2

1

R55100R

S7

FREQ ENT

R542.20K

R93100R

JP1ENCPWR

1 2 3

S14

ATTN

R6347R

S3

A/B

R91 10.0K

S5

DATA

C1030.1 uF

D7

BAT54C

1 3

2

Q5

PMGD780SN

5

32

4

6

1

S15

APF

R11610.0K

S10

MSG

R96

1.00K

R562.20K

LED1

OFS

2

1

S18

DLY

Z4 SPDMIC12345

6 7

ACOMB

SWSWCOMMTG1 MTG2

S13

PRE

R7810.0K

R90

1.00K

S2

MODE

Q3

PMGD780SN

5

32

4

6

1

Z1

LCD BACKLIGHT

2

1

R68 4.70K

S11

ATU TUNE

R1040R0

OFSBB

VLCDBKLT

SELOB

OFSBA

SELOA

SPDMICB

GAINBGAINA

SCAN[105..100]

SPDMICA

LEDOFS

LEDTX

LEDB

LEDDELTA

VLCDBKLT1

BMA

nPWRA

nPWRB

ATA

VLEDBRT

ENCEN

MAINENCB

MAINENCA

55

4

4

3

3

2

2

1

1

D D

C C

B B

A A

NOTE: nRST=0 then 1, BOOTSPI=1: SPI MASTER BOOT from Flash

nRST=0, BOOTSPI=0: Load SPI Flash from MCU

Place one but NOT both resistors.

HI = 294 MHz default Clk.

LO = 147 MHz default Clk.

2010110101 G

KX3 Control Panel: DSP


B


Title


Date: Sheet of

MOSIMISOSCK

nRST

SPIMISO

SPInCS

SPIMOSI

SPICLK

SPInCS

SPICLK

SPIMISO

SPIMOSIMOSI

MISO

nCS0

SCK

nCS0

SPIMOSISPIMISOSPICLK

nRST

TDI

TMSTDO

TCK

TRST

nEMU

nCS0

SPInCS

SCKMISOMOSI

BOOTSPI

TCK

TDI

nEMU

TMS

TRST

TDO

SYNC3V3

SCLDSP

SCLDSP

SDADSP

SDADSPSCL1

SDA1

3V3D

3V3D

3V3D

3V3D

5VD

3V3D

3V3D

3V3D

3V3D

P1

JTAG-DSP

1 23 45 67 89 10

11 1213 14

C86

15 pF

U2C

ADSP-21479

1920212423252827303132333436

DPI_P01/SPI_MOSIDPI_P02/SPI_MISODPI_P03/SPI_CLKDPI_P04/SPI_DSDPI_P05/SPI_FLG0DPI_P06/SPI_FLG1DPI_P07/SPI_FLG2DPI_P08/SPI_FLG3DPI_P09/UART_TXDDPI_P10/UART_RXDDPI_P11/TWI_DATDPI_P12/TWI_CLKDPI_P13/TIMER0DPI_P14/TIMER1

R49 22.0R

C67

15 pF

R13 10.0K

C141 100 pF

R7 10.0K

R46

1.0M

U3

FST3257

4

7

9

12

2356

11101413

816

1

15

1A

2A

3A

4A

1B11B22B12B23B13B24B14B2

GNDVCC

S

OE

U2B

ADSP-21479

102

36

12

13

98

6970

77808182

90

91

9592

96

99

17

CLK_CFG0CLK_CFG1

BOOT_CFG0BOOT_CFG1

CLKIN

XTAL

RESET

THD_MTHD_P

FLAG0FLAG1FLAG2FLAG3

TRST

EMU

TDITDO

TCK

TMS

RESETOUT/RUNRSTIN

R125 1.00K

U4

M25PX16

16

25

43

8

7

CSCLK

DoutDin

VSSWP

VCC

HOLD

R35 0R0

R50 22.0R

R66 4.70K

R8 10.0K

R23 10.0K

R104.70K

Y2

18.432 MHz

R67 4.70K

R22 10.0KR3 10.0K

R20 10.0K

C140.1 uF

R6 10.0K

R48 22.0R

C140 100 pF

R33 470R

R34 N.P.

R21 10.0K

R126 1.00K

R9 10.0K

C150.1 uF

U5

MCP120D

12

3

RSTVDD

VSS

nRST

MISO

MOSI

nCS0

SCK

BOOTSPI

SYNC3V3

SCL1SDA1

55

4

4

3

3

2

2

1

1

D D

C C

B B

A A

From IQ Detector

NOTE: The PCM1803A and PCM1773 are configured in slave mode,I2S format.

To IQ Modulator

Mic/Phones/Speaker

0V to MUTE

LPF near U1

LPF near U1

Do Not Install

N.C tied to copper pours (thermal).

SPKR AMP to "STAR" GND.

C142 near U22

2010110101 G

KX3 Control Panel: IF and Audio


B


Title


Date: Sheet of

BCLKMCLK

SDA1

ADCSCK

nRST

WCLKDIN

ADCLRCKADCDOUT

nRST

SPLIN

SCL1

SPLIN

SPKRLVL

ADCBCKADCLRCK

ADCDOUT

ADCBCK

DACDIN

ADCSCKMCLK

BCLKWCLK

DINDOUT

DOUT

nRSTDAC

DACDIN

DBG0

DBG1

DBG2

DBG3

DSPBUSYDSPDATA

DBG0DBG1

DBG2DBG3

DBG0

DBG1

DBG2

DBG3

TXDACREF

ADCSCK

ADCLRCKADCBCK

nRSTDAC

TXDACREF

TXDACREF

AFGND

3V3D

3V3A

1V8D

3V3A

3V3A

5VA

3V3D

12V

5VA

5VA

C6910 uF Film

R4

1.00K

U19

PCM1773

5

9

15

1014

137

2

31

16

4

12

6

8

11

AGND1

VoutL

FMT

AINAMIX

DEMPVCOM

DIN

BCKLRCK

SCKI

PDWN

VCC1

AGND2

VoutR

VCC2

L1 100 uHTP2

R71 8.20K

R65

1.00K

C490.1 uFR98

10.0K

R64

1.00K

+

-

U18BTLC2272A

5

67

8

4

J7

SPKR

12

C1421000 pF

R76

4.70K

L3 100 uH

+

C3

N.P.

C330.1 uF

LED7 LED21

C105

2400 pF

C6810 uF/10V

TP3

C960.1 uF

R12

1.00K

U12

PCM1803

3

1

1718

8

1920

16

9

13

14

12

1110

15

7

5

6

2

4

VrefL

VinL

FMT0FMT1

BYPAS

MODE0MODE1

OSR

TEST

DGND

VDD

DOUT

BCKLRCK

SCKI

PDWN

VCC

AGND

VinR

VrefR

C42 0.1 uFR1

1.00K

C4310 uF/10V

LED6 LED21

R60 15.0K

C94

0.1 uF

R1204.70K

R53 15.0K

C9510 uF/10V

C722700 pF Film

TP4

C320.1 uF

+C2100 uF/6.3V

+C1100 uF/6.3V

C8710 uF/10V

C480.1 uF

C1240.1 uF

R36

2.20K

R51 100R

C12510 uF/10V

C113

0.47 uF

R97

22R

C100240 pF

C104

2400 pF

LED8 LED21

R61100R

U2D

ADSP-21479

4344355749484156505165634058626160594254

DAI_P01/SP0_DADAI_P02/SP0_DBDAI_P03/SP0_CLKDAI_P04/SP0_FSDAI_P05/SP1_DADAI_P06/SP1_DBDAI_P07/SP1_CLKDAI_P08/SP1_FSDAI_P09/SP2_DADAI_P10/SP2_DBDAI_P11/SP3_DADAI_P12/SP3_DBDAI_P13/SP2_CLKI/SP3_CLKDAI_P14/SP2_FSI/SP3_FSDAI_P15/SP4_DADAI_P16/SP4_DBDAI_P17/SP5_DADAI_P18/SP5_DBDAI_P19/SP4_CLKI/SP5_CLKDAI_P20/SP4_FSI/SP5_FS

R124

N.P.

R122 N.P.

U1

TLV320AIC3105

12345

6

7

89

1011

1213

14

15

16

17

18

1920

2223

21

2425

26

2728

2930

31

32

33

MCLKBCLK

WCLKDIN

DOUT

DVSS

IOVDD

SCLSDA

MIC1L/LINE1LMIC1R/LINE1R

MIC2L/LINE2LMIC2R/LINE2R

MIC3L/LINE3L/MICDET

MICBIAS

MIC3R/LINE3R

AVSS1

DRVDD

HPLOUTHPLCOM

HPRCOMHPROUT

DRVSS

DRVDDAVDD

AVSS2

LEFT_LOPLEFT_LOM

RIGHT_LOPRIGHT_LOM

RESET

DVDD

PAD

C560.1 uF

C882700 pF Film

C7310 uF FIlm

LED5 LED21

R52 8.20K

C99240 pF

R92 22R

C10110 uF/10V

+

-

U18ATLC2272A

3

21

8

4

R24 2.20K

U22

TDA7056A

5

7

6

15

14

4 17

12389101112

1316181920

IN+

VC

SGND

PGND

OUT+

VP OUT-

NCNCNCNCNCNCNCNC

NCNCNCNCNC

R5

1.00K

+

C8680 uF/25V

+

C5

N.P.

R121 N.P.

TP1

nRST

MICAUD

RXQ

SDA1

HPLOUT

SCL1

HPROUT

SPKRLVL

RXI

DSPBUSYDSPDATA

TXDACREFTXI

TXQ

AFGND

55

4

4

3

3

2

2

1

1

D D

C C

B B

A A

2010110101 G

KX3 Control Panel: LCD


B


Title


Date: Sheet of

SEG21

SEG57

SEG33

SEG18

SEG7

SEG44

SEG19

SEG45

SEG26

SEG14

SEG40

SEG2

SEG48

SEG13

SEG16

COM2

SEG3

SEG22

SEG8

SEG5

SEG19

SEG52

SEG42

SEG11

COM[1..4]

SEG37

SEG30

SEG13

SEG56

SEG47

SEG27SEG28

SEG14

SEG3

COM4

SEG2

SEG20

SEG9

SEG54

SEG46

SEG31

SEG36

SEG4

SEG29

SEG15

SEG[1..60]

SEG59

SEG15

SEG60

SEG10

COM3

SEG10

SEG18

SEG35

SEG12

SEG41

SEG25

SEG39

SEG16

SEG5

SEG53

SEG32

SEG20

SEG51SEG50

COM1

SEG11

SEG58SEG4

SEG17

SEG23

SEG34

SEG6

SEG38

SEG17

SEG43

SEG24

SEG1

SEG6

SEG49

SEG12

SEG1

SEG55

SEG48SEG49SEG50SEG51SEG52SEG53SEG54SEG55SEG56SEG57SEG58SEG59SEG60

COM1COM2

COM3COM4

SEG21SEG22

SEG47SEG46

SEG45SEG38

SEG39SEG40

SEG37

SEG35SEG36

SEG34

SEG33SEG32

SEG27

SEG30

SEG23

SEG26SEG25

SEG28SEG29

SEG24

SEG31

SEG7

SEG8SEG9

SEG44SEG43SEG42SEG41

3V3D

6V

DS1

KX3 Custom LCD

56789

10111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364

4321

SEG1SEG2SEG3SEG4SEG5SEG6SEG7SEG8SEG9SEG10SEG11SEG12SEG13SEG14SEG15SEG16SEG17SEG18SEG19SEG20SEG21SEG22SEG23SEG24SEG25SEG26SEG27SEG28SEG29SEG30SEG31SEG32SEG33SEG34SEG35SEG36SEG37SEG38SEG39SEG40SEG41SEG42SEG43SEG44SEG45SEG46SEG47SEG48SEG49SEG50SEG51SEG52SEG53SEG54SEG55SEG56SEG57SEG58SEG59SEG60

COM1COM2COM3COM4

U9

74AHCT1G04

2 4

5

3

C280.1 uF

C36

10 uF/10V

R30

1.00K

U8

PCF85134

5051525354555657585960616263646566676869707172737475767778798012345678

444546

47

42

41

3938

40

48

49

33

3132

30

91011121314151617181920212223242526272829

43

S0S1S2S3S4S5S6S7S8S9

S10S11S12S13S14S15S16S17S18S19S20S21S22S23S24S25S26S27S28S29S30S31S32S33S34S35S36S37S38

A0A1A2

SA0

SYNC

VDD

SCLSDA

CLK

VSS

VLCD

BP3

BP1BP2

BP0

S39S40S41S42S43S44S45S46S47S48S49S50S51S52S53S54S55S56S57S58S59

OSC

VCONTRAST

SCL0SDA0

55

4

4

3

3

2

2

1

1

D D

C C

B B

A A

ADC ground referencefor offset algorithm.

L5 and C75 are N.P.

2010110101 G

KX3 Control Panel: MCU


B


Title


Date: Sheet of

SCAN104

MOSI

RXD

RXD

VLCDBKLT

SCK

HPDET

TXD

MOSI

PGC

SPARE3

SCAN101

TXD

SELOB

nCSEEP

3T

SCK

SCAN102

nRST

MISO

MISO

SCAN100

OFSBA

3R

SCAN103

SELOA

PGD

MCLR

SCAN[105..100]

VSI570VPATEMPISENSE

VRFLVFWD

DSPDATADSPBUSY

OFSBBVCONTRASTMCLR

SPKRLVL

VLCDBKLT1

V12MON

V12MON

nCS1B

MOSIBMOSI

SCKB

MISOMISOB

SCK

BMA

SCAN101

SCAN103

SCAN104

SCAN105

SCAN100

SCAN102

SCAN101

SCAN100SCAN102

SCAN103

SCAN105SCAN104

ATA

nPWRSW

nDOTALT

I2CEN

PGC

nDASH

nCSEEP

SPDMICB

SDA0

LEDOFS

SCKVLEDBRT

nCS1

GAINA

nPWRHOLD

nDOT

SCL0

LEDTX

PGD

nCS0

3T

MOSIMISO

MAINENCB

GAINB

ANT16MHZEN

BOOTSPI

ENCEN

LEDDELTA

3R

MAINENCA

SPDMICA

LEDB

SCAN105nDASHALT

nDOTALTnDASHALT

VPTTUPDN

VBCR

SPARE1

nCS1

nSPIEN

nSPIEN

ANT16MHZEN

SCL0

SDA0

HPDET

nDOTnDASH

VPTTUPDN

3V3D

3V3D

3V3D3V3D

3V3D

3V3D

3V3D

12V

3V3D

5VD

3V3D

3V3D

3V3D

3V3D

3V3D

3V3D

TESTOSC2

C6233 pF

R2

10.0K

R128 10.0K

C130.1 uF

C3733 pF

RP1

10K

512346789 10

U23

PE4283 N.I.

31

2

5

64

RF2RF1

GND

RFC

V2V1

CN91000 pF1 2

3 4

R15 120R

J2

ACC

123456

C31 100 pF

R16 120R

R101 10.0K

R45

47.0K

U16

74AHCT125

12

7

3

14

54

6

910

1213

8

11

1OE1A

GND

1B

VCC

2A2OE

2B

3A3OE

4A4OE

3B

4B

C290.1 uF

Y1

16 MHz

CN111000 pF1 2

3 4

R18

47.0K

R102 10.0KR28 470R

U6

25LC512

1

2

3 4

5

6

7

8

CS

SO

WP VSS

SI

SCK

HOLD

VCC

C910.1 uF

RP3

100K

512346789 10

C30 100 pF

R17 120R

R123

47.0K N.I.

C981000 pF

C520.1 uF

R27 1.00K

C1354.7 pF N.I.

C7510 uF/10V

R127 10.0K

R31 470R

R11 120R

CN30.01 uF1 2

3 4

C760.1 uF

R32 330R

R42

10.0K

C16 100 pF

C971000 pF

R14 120R

L5 47 uH

R40 22.0R

U10

PIC18F87K22

123456789

10111213141516171819202122232425262728293031323334353637383940 41

424344454647484950515253545556575859606162636465666768697071727374757677787980RH2/A18/AN22

RH3/A19/AN23RE1/P2C/WR/AD9RE0/P2D/RD/AD8RG0/ECCP3RG1/TX2/CK2/AN19RG2/RX2/DT2/AN18RG3/CCP4/AN17MCLR/RG5RG4/CCP5/AN16VSSVDDcore/VcapRF7/AN5/SS1RF6/AN11RF5/AN10/CVrefRF4/AN9RF3/AN8RF2/AN7/C1OUTRH7/CCP6/AN15RH6/AN14RH5/AN13RH4/AN12RF1/AN6/C2OUTENVREGAVDDAVSSRA3/AN3/VREF+RA2/AN2/VREF-RA1/AN1RA0/AN0VSSVDDRA5/AN4/LVDINRA4/TOCKIRC1/T1OSI/ECCP2RC0/T1OSO/T13CKIRC6/TX1/CK1RC7/RX1/DT1RJ4/BA0RJ5/CE RJ6/LB

RJ7/UBRC2/ECCP1

RC3/SCK1/SCL1RC4/SDI1/SDA1

RC5/SDO1RB7/KBI3/PGD

VDDOSC1/CLKI

OSC2/CLK0/RA6VSS

RB6/KBI2/PGCRB5/KBI1RB4/KBI0

RB3/INT3/ECCP2RB2/INT2RB1/INT1RB0/INT0RJ3/WRHRJ2/WRL

RJ1/OERJ0/ALE

RD7/PSP7/AD7/SS2RD6/PSP6/AD6/SCK2/SCL2RD5/PSP5/AD5/SDI1/SDA2

RD4/PSP4/AD4/SDO2RD3/PSP3/AD3RD2/PSP2/AD2RD1/PSP1/AD1

VSSVDD

RD0/PSP0/AD0RE7/CCP2/AD15RE6/AD14/CCP6RE5/AD13/CCP7RE4/AD12/CCP8RE3/AD11/CCP9

RE2/CS/AD10/CCP10RH0/A16/AN20RH1/A17/AN21

D1BAT54

1 3

R19 0R0

CN41000 pF1 2

3 4

CN101000 pF1 2

3 4

C610.1 uF

C510.1 uF

U15

NC7SZ125

2 4

5

3

1

TESTOSC1

ISENSE

VFWDVRFL

VSI570VPATEMP

VCONTRAST

VLCDBKLT

nRST

TXD

OFSBAOFSBB

RXDSELOASELOB

SCAN[105..100]

DSPDATA

HPDET

SPKRLVL

VLCDBKLT1

MISOB

SCKB

MOSIB

nCS1B

nPWRSW

MAINENCB

GAINA

LEDDELTA

3R

BOOTSPI

3T

MAINENCA

MISO

SDA0

LEDB

VLEDBRT

SPDMICB

LEDOFS

SCL0

nPWRHOLD

nCS0

LEDTX

SCK

SPDMICA

GAINB

I2CEN

MOSI

nDOTALT

nDASHALT

ATABMA

VBCR

SPARE3

ENCEN

SPARE1

DSPBUSY

VPTTUPDNnDOT

nDASH

55

4

4

3

3

2

2

1

1

D D

C C

B B

A A

3-4V in, 1.2V out, 70%, 1.0A

"Single Point" Ground

"Single Point" Ground

8-16V in, 3.3V out, 82%, 1A

DSP requires +1.2 and +3.3 only.

Normally shunted.

Use to monitorDSP corecurrent.

11.2K = 1.3V10.0K = 1.2V8.25K = 1.1V

2010110101 G

KX3 Control Panel: Power


B


Title


Date: Sheet of

5VD

3V3D

12V

1V2D

3V3D

3V3D

1V2D

1V2D3V3D

1V2D

1V2D

6V12V

3V3D 1V8D

12V

3V3A5VA12V

C390.1 uF

D2

B130

U13

LM2671M-3.3

5

4

6

8

1

7

3

ON/OFF

FEEDBACK

GND

SWITCH

CB

VIN

SYNC

C1210.1 uF

TAIL6

C790.1 uF

U7

MIC5265-1.8YD5

1

2

3

4

5VIN

GND

ON

BYP

OUT

C930.1 uF

U14

LM78L06

18

2367

OUTIN

COMCOMCOMCOM

C5822 uF/6.3V

C460.1 uF

C190.1 uF

L6

100 uH

C540.1 uF

C350.1 uF

C5922 uF/6.3V

C740.1 uF

C220.1 uF

L7

15 uH

R1191.00K

TAIL7

L8

15 uH

C450.1 uF

C650.1 uF

FIDCL1FIDCL2

C240.1 uF

C780.1 uF

U2A

ADSP-21479

151115161822293738394547525564666772737475767879889497100

142646538693

71

89

768

8384858789

101

4 VDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDintVDDint

VDDextVDDextVDDextVDDextVDDextVDDext

VDDthd

NCNC

GNDGND

GND/MLBCLKGND/MLBDATGND/MLBDOGND/MLBSIGGND/MLBSO

GND (PAD)

VDDext

TP6

TAIL2

C102100 uF/6.3V

C810.1 uF

U24

LM78L05

3

2

1VI

G

N

D

VO

TAIL8

R3810.0K

C550.1 uF

STNDO2STNDO1

C210.1 uF

C112100 uF/6.3V

C170.1 uF

R39 10.0K

C200.1 uF

C90

0.01 uF

C840.1 uF

TP7

C800.1 uF

U20

LM78L05

3

2

1VI

G

N

D

VO

TAIL3

C410.1 uF

C601 uF

C4422 uF/6.3V

C133

100 uF/6.3V

STNDO3

C891 uF

C500.1 uF

R41 0.025R

C13710 uF/10V

C250.1 uF

C1360.1 uF

C850.1 uF

TP8

C820.1 uF

U25

LP2985-33

1

2

3

4

5VIN

GND

Enable

Bypass

OUT

C180.1 uF

TAIL4

TP9

D4B130

C134

100 uF/6.3V

C2610 uF/10V

C630.1 uF

STNDO4

R37 10.0K

C920.1 uF

L2 6.2 uH

C660.1 uF

C640.1 uF

U11

LM2831YMF

1

2 3

4

5 SW

GND FB

EN

VIN

C131100 pF

C7122 uF/6.3V

C13910 uF/10V

C1380.01 uF

C830.1 uF

TAIL5

C700.1 uF

TAIL1

C400.1 uF

C380.1 uF

+

C132330 uF/25V

STNDO5

C470.1 uF

C340.1 uF

C530.1 uF

TP5

C230.1 uF

SYNC3V3

55

4

4

3

3

2

2

1

1

D D

C C

B B

A A

2011090701 A

KXPD3

A

1 1Friday, March 02, 2012

Title


Date: Sheet of

HOL3GND

J1

KX3

1234

HOL1GND

CON1LEFT

1

CON2RIGHT

1

HOL2GND

Date: Sheet of

Title Rev

Elecraft, Inc. Copyright (C) 2012R. Heineck

KXAT3 - 20W Antenna Tuner A1 1March 15, 2012

8 1

K7C330.01uF

1 2 3 4 5 6 7 8 9

10

P2

nCS

MOSI

MISO

SCK


A015A116A217


RESET18INTB19INTA20

Vdd9

Vss10

CS11SCK12SI13SO14

U2MCP23S17

G2

Out 1In3

U1MC78L05A

C200.1uF

5V

5V

L1

0.06uH

L2

0.12uH

L5

1uH

L6

2uH

2

3

4

765

K6

2

3

4

765

K5

2

3

4

7 6 5

K1

2

3

4

7 6 5

K10

2

3

4

7 6 5

K2

2

3

4

7

6

5 K15

2

3

4

7

6

5 K18

2

3

4

7

6

5 K13

2

3

4

7

6

5 K14

2

3

4

7

6

5 K11

2

3

4

7

6

5 K12

2

3

4

7

6

5 K17

2

3

4

7

6

5 K16

C710pF

RF

8 1

K8C370.01uF

8 1

K6C290.01uF

8 1

K3C320.01uF

8 1

K4C360.01uF

8 1

K1C230.01uF

8 1

K2C280.01uF

8 1

K10C450.01uF

8 1

K18C390.01uF

8 1

K13C340.01uF

8 1

K14C380.01uF

L_4u

L_2u

L_500n

L_250n

L_125n

L_63n

L_4uL_2uL_1u

ANT_HI_Z

L_8u

L_8u


A015A116A217


RESET18INTB19INTA20

Vdd9

Vss10

CS11SCK12SI13SO14

U5MCP23S17

C270.1uF

5V

5V

5V

12

J1

54

R1

63

81

72

22

14

C18A470pF

23

C18B470pF

23

C19B470pF 1

4

C19A470pF

C_160pC_320pC_640pC_1280p

C_40p

C_80p C_1280p

2

3

4

K9A

7

6

5

K9B

C60.033uF

C175600pF

C1Not Installed

RFRF Board P7

Antenna

AM BCBAM BCB

Hi Z / Lo Z

2468

10

OE1 1

20

1816

1214

U3A74AC244

17151311

OE2 19

35

97

U3B74AC244

2468

10

OE1 1

20

1816

1214

U4A74AC244

17151311

OE2 19

35

97

U4B74AC244

5V 5VC210.1uF

C220.1uF

8 1

K5C240.01uF

L_1u 8 1K11

C250.01uF

8 1

K12C300.01uF

C_10p

C_20p

C420.01uF

8 1

K9C430.01uF

C440.01uF

BCB_BPF

8 1

K15C260.01uF

8 1

K16C310.01uF

C_160p

C_320p

8 1

K17C350.01uF

C_640p

C460.01uF

ANT_HI_ZBCB_BPF

LO_L_DRV HI_L_DRV HI_C_DRVLO_C_DRV

HI_C_DRV

C_10pC_20pC_40pC_80pLO_C_DRV

L_500nL_250nL_125nL_63n

LO_L_DRVHI_L_DRV

ATU ID=0

C818pF

C939pF

C1082pF

C1182pF

C14680pF

C13

330pF

C12

82pFC15680pF

C16680pF

C44.7uF

8 1

K19C470.01uF

XVTR

C400.01uF

2

3

4

7 6 5

K19KX3-2M P?

XVTR

SCKnCS

MOSIMISO

12V

RLY_COM1 RLY_COM2 RLY_COM3 RLY_COM4

CAP_COM

L3

0.25uH

2

3

4

765

K3

L7

4uH

2

3

4

7 6 5

K7

L8

8uH

2

3

4

765

K8

L4

0.5uH

2

3

4

765

K4 1 2 3 4 5 6

P1

RF Board P6&

I/O-C: 0x2

I/O-D: 0x3

RF

C2Not Installed

RF

(RC1) (RC2) (RC3) (RC4)

KX3-2M P?

1

1

2

2

3

3

4

4

5

5

A A

B B

C C

D D

C9

0.47uF

C10

0.47uF

R14510

R13330

C1

0.47uF

R2

6800.1%

R1

6800.1%

R6

3300.1%

C2

0.47uF

R5

3300.1%

R7510

R4330

4

7+5

-6

8

U1BADA4075-2

12V

1+3

-2

U1AADA4075-2

23

1

U2AADG1611

15 14

16

Vdd

13

U2BADG1611

R9

6800.1%

R8

6800.1%

R12

3300.1%

R11

3300.1%

76

8

Gnd 5

U2DADG1611

10 11

9

Vss

4

U2CADG1611

C422uF

C1222uF

12V

Date: Sheet of

Title Rev


KXFL3 RX Filter Option A

January 4, 2012 1 1

R. Heineck

12V

C60.1uF

R3

5100.1% C3

0.1uF

R10

5100.1% C11

0.1uF

C70.01uF

nKXFL3_WIDE

nKXFL3_WIDE

nKXFL3_WIDE

I_OUT

Q_OUT

Q_IN

I_IN

SCL1SDA3

Vss 2

Vdd 4

WP 5

U324LC16

C80.1uF

1 2 3 4 5 6 7 8 9

101112

J1C522uF

1

1

2

2

3

3

4

4

5

5

6

6

7

7

A A

B B

C C

D D

E E

55

4

4

3

3

2

2

1

1

D D

C C

B B

A A

Pin 9 = KEY

2011082391 XG

KXBC3: KX3 BCR/RTC/RETAINER

Elecraft, Inc. Copyright (C) 2011, 2012, 2013L Johnson

B

1 1Wednesday, March 06, 2013

Title


Date: Sheet of

SCLSDA

nPWRON

3V3

12VUNSW

VBATT-

AUXCTRL

U1

LM385M3-2.5

1

2

3Vin

GND

NC

R2

220K

J1

ICD

123456

R17 100R

U2

LT1965EDD

12

78

459

36

OUTOUT

ININ

GNDGNDGND

SENSESHDN

Y28.0 MHz

R1

910K

R4

100K

C7 15 pF

D2

YELLOW

1

2

TP5RTCC

R8

12R

TP3GND

C110 uF X5R

Y1

32.768 kHz

MTG1#2 CSK

C50.01 uF

R16 1K

TP1PAD

C9 15 pF

C8 15 pF

R7

910K

U3

PIC24F16KA101

1

23

1615

19

7817

1814

1213

116

20

10

9

54

MCLR

RA0/AN0RA1/AN1

RB13/AN11RB12/AN12

VSS

OSC1/AN4/RA2OSC2/AN5/RA3

RB14/RTCC/AN10

RB15RA6

SCL/RB8SDA/RB9

TX/RB7RX/RB2

VDD

SOSCO

SOSCI/RB4

PGC1/RB1PGD1/RB0

R12 10K

MTG2#4 CSK

TP2PAD

MTG3#4 CSK

C30.01 uF

C410 uF X5R

R9

12R

R11 10K

tRT1

100K@25C

1

2

R5

100K

C10 15 pF

TP4PAD

R3 47K

C110.03 F

R14 N.I.

R10

20R

C60.01 uF

FID1

R6

910K

R15 100R

FID2

J2

KX3CP

12345678910

C2

10 uF X5R

R13 100R

D1

BAT54

1 3

Q1

PMGD780SN

5

32

4

6

1

kx 3 schematic diagram dec 2012

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