Motorola HT 1000 VDD VDD2, Det, NC3 NC4 NC5 NC6 NC7 NC8 NC9, VMULT2 Frefout, Sense Shutdown 5VTAP

C245

23

NC NC NC NC NC

D CLK

13Vdc

1000pF

C274

4Vpp

9

13

14 20 27

7

21

C258

*

16.8MHz10

DE

VDD

CE

VDD2

NC12

NC13

CEXT

SO

S1

25

4.7uF

CR204

FOUT

8

22

1

6

5Vdc

12

DET

U203

SCK

24

2

K1

A1

5

2.1MHz

C279

C280

C260

11

VOPT

SS

32

K2

A2

R221

100pF

0.1uF

.047uF

VREG

REF OSC

NC18

3

K3

A3

4

20 36 42 25 23 11

1.2K

26

GND

16.8 MHz

NC17

31

SIN VCP DC5V4

DC5V3 DC5V2 DC5V1

R211

1

NC1

NC16

30

C256

C289

*

C288

2

NC2

NC15

29

.01uF

CLK 100pF

.01uF

3

NC3

NC4

NC5

NC6

NC7

NC8

NC9

NC10

NC11

NC14

28

8

10

VMULT2

FREFOUT

C267

C257

9

3

4

5

6

15

16

17 18

19

VMULT1

CLK

.01uF

.01uF

7

15

NC

VMULT3

XTAL2

CR206

6

VMULT4

XTAL1

14

2.3Vdc

C266

MODIN

5

NC

1

2

3

.01uF

NC 26

TST1

C217

C303

0V OR 5Vdc UNLOCK

K1 K2 K3

5V

100pF

.022uF

27

5V_REG

SB+

L202

1

8

OUTPUT

U202 INPUT

2.2uH

C282

C254

C255

5

ERROR

FEEDBACK

7

C125

0.1uF

4.7uF

0.1uF

NC

3.3uF

2

SENSE

SHUTDOWN

3

6

5V_TAP

5V REG

GND

C210

4

16.8MHz

1 Vpp

.022uF

B+

	F1
1.0A		C315
		100pF
	32V
	1A

GND

IS_B+

7.5Vdc

1

2

3

BATT+

BATT-

NC

J301-1 RAW_B+

J301-20 RAW B+

J301-2 SW_B+

J301-3 VCO_MOD

CR205

0V

NC

TST2

2.0Vdc typical

R218

D

(shield in place)

5Vpp (N0te 6)

C52

100K

R18

U204

.018uF

C64

0Vdc (Rx, Tx) (Note 7)

NC 37

AUX1

DATA

2

200K

R16

R17

Else 4.4 Vdc (Note 6)

39

SYNTHESIZER

32

2.7K

20K

0.1uF

A1 A2 A3

AUX3

IOUT

6

NC 40

AUX4

IADAPT

34

-7.6 Vdc(Rx) (Note 6)

5

4

LCK

NC 35

ADAPTTSW

SYN

C275

C53

C54

-7.8 Vdc(Tx) (Note 6)

0.1uF

0.15uF

39pF

CR5

C55

Else 0 Vdc (Note 7)

41

4

Q201

LOCK

EN_CE

33pF

24

C216

2.5Vdc

C284

S

PVREF

NC

R212

C270

12

3300pF

R213

TP5

0.22uF

1000pF

AD_BYPASS

NC

750

29

CPBIAS1

R211

470

D

1.7Vdc (RX) 1.6Vdc (TX)

16

1

L24

R35

28

CPBIAS2

WARP

NC

150

19

180nH

47K

SOUT

SBASE

18 NC

R215

C247

L222

21

PREIN

CAP

17

C246

TP5 VCTRL

43K

R214

38

AUX2

MODOUT

30

C253

0.47uF

270nH

.022uF

4.9(RX)Vdc @ 450MHz

43K

GND1 R GND2

R GND1

10uF

GND4

GND3 GND2

5.2(TX)Vdc @ 450MHz

C271

C250

C290 L221

EN

C287

6.1(RX)Vdc @ 512MHz

7.4(TX)Vdc @ 512MHz

L223

4.7uF

1000pF

C294

100pF

390nH

33 22 13

1 44 43 31

.022uF

CR12

390nH

100pF

7.7(RX)Vdc @ 520MHz

1

9.2(TX)Vdc @ 520MHz

3

2

R203

C238

CR207

CR208

4.6Vdc (NOTE 5)

10

100pF

C211

C235

L207

L209

R51

10K

100pF

5.1pF

R53

L219

150nH

390nH

1.2K

-23 dBm

1.6 Vdc

L208

18nH

C239

390nH

6.8pF

C214

-8dBm

C244

3pF

C236

2Vdc(RX)

C237

C243

.022uF

C59

4.3pF

.01uF

3.3pF

CR201

CR209

L205

2.6Vdc

6.8pF

18nH

R209

0.7Vdc (RX)

470

Q202

R204

R205

4.3Vdc (TX)

0.1Vdc (RX)

10K

15K

C240

2.25Vdc (TX)

L210

4.5pF

4.6Vdc

14.5nH

C209

C208

.01uF

100pF

R207

C231

10uF

R220

68K

2.5Vdc

2K

L220

L204

R223

R208

C233

27nH

390nH

47K

3.3Vdc

C221

C206

L218

100pF

2.4K

-18dBm

.01uF

2200pF

390nH

CR202

-9dBm

1.4Vdc

16

5

7

10

4.5Vdc

PS

TRB

S1

VC

C225

3Vdc (TX)

C292

C230

0Vdc (RX)

L224

15

3

1pF

*

L212

1pF

33nH

4

RBY

U201

VCC

6

R206

18nH

TX_LO

C228

2

TX_OUT

SV1

10K

RX_OUTVCO BUFFER C

9

100pF

C202

GND1

GND

C201

*

C203

S2

NC

E2 B2

-12dBm(TX)

C222

C226

1pF

1.5pF

14

1

13

8

12

11

2.8Vdc

4.3pF

9.1pF

L201

18nH

2.2Vdc (RX)

NC

L213

L36

0.1Vdc (TX)

R217

L216

390nH

15K

C223

CR203

150nH

15nH

L211

4.5pF

C204

R210

9 nH

RX_LO

100pF

C205

330

C227

*

C219

C220

100pF

L215

R219

3.3pF

6.2pF

1.9Vdc (TX)

390nH

0

AGC

IF

C304

5V_REG

100pF

C65

C63

C96

Q5

LCK

R34

4700pF

R32

0.1uF

.01uF

2.7K

47K

-23dBm

R1=47K

3.8Vdc

LOCK=5V

C308

(NOTE5)

UNLOCK=0V

100pF

1

3

C58

CLK

Q1

C49

2.2pF

0.33uF

3.4Vdc

DURING

L301

C313

C56

2

PROGRAMING

390nH

*

73.35MHz

43pF

1.7Vdc

R33

2.8Vdc

2.7K

C95

C311

C57

8.2pF

3300pF

43pF

D

R45

5V_REG

51K

23 14

18

22 25

19

20 21

29

C305

100pF

13

+5V2

+5V4

LOIN

Vc

16.8MHz

VIBYPASS

DATA

CLK

CE

SQ C4POS

32

PINS 31-38 = 2.5Vdc

L25

17

+5V3

C4NEG

31

SYN

C45

2.2uH

12

Vpp

C3NEG

33

0.22uF

11

34

C44

C309

+5V1

C3POS

L23

R43

C40

1.6Vdc

C2NEG

35

0.22uF

3300pF

36

C43

560nH

-53dBm (NOTE 5)

100pF

U3

C2POS

* using 10 pF

6

DM_IN

ZIF

C1NEG

37

0.22uF

5

38

C42

PEAMP_OUT

C1POS

4

PEAMP_5V

DISC

28

0.22uF 2.3Vdc

10

RSSI_FLT

RAMPCAP

24

C306

1.6Vdc

7

GND1

GND2

GND3

GND4

GND5

GND6

PREAMPGND

PREAMPIN

27

0.1uF

100pF

2.5V

+2.5V2

OUTRSSI

3.4Vdc

40

DM_BYP

+2.5V1

2.5Vdc

C48

C60

C61

C41

AGC

430pF

0.1uF

0.1uF

0.1uF

C47

39

30

1

8

15 16

26

41

3

2

9

1.2Vdc

2.5Vdc

2.9Vdc (RX) (NOTE 3)

C46

C307

0.22uF

100pF

R47

Q4

2.1MHz

22

2

3

2.0Vdc

C51

R49

0.1uF

R50

1

15K

DAC

1.5K

-36dBm (RX)

R46

(NOTE 5)

C310

47K

1.4Vdc

100pF

D

C50

390nH

FREQ=73.35MHz

L302

-44dBm (NOTE 5)

.01uF

C314

R41

L20

FL1

C38

*

10pF

470nH

22

1

IN

OUT

3

R40

R42

*

5.1pF

GND

GND1

R48

L22

R44

C39

*

C35

C36

470nH

680

1.8pF

470

470

2

4

J301-5 REF_OSC_SEL

J301-4 LOCK_DET

J301-15 CLOCK

J301-14 IF_SEL

J301-12 SQ_OUT

J301-17 SYN_SEL TO P301

1kHz

280mVpp/kHz

DEVIATION

J301-10 DISC

J301-11 RSSI

2.1/2.4_MHZ

J301-13

1200mVpp

J301-7 DAC_SEL

DATA

5V

J301-6

J301-8 GND

J301-9 GND

J301-16 GND

J301-18 GND

J301-19 GND

63B81097C04-O Sheet 2 of 2

NUE7267B, NUE7268B, NUE/PMUE7273B, AND NUE7275B UHF (450-520MHz)
TRANSCEIVER BOARDS’ SCHEMATIC DIAGRAM (Sheet 2 of 2)	73