Codan Radio Communications VT-3-150-SN User Manual

C38

C39

C45

C49

C60

R32

R21

1.5 µF

1.5 µF

68 nF

15 nF

0 

Ω

 Wire Jumper

2k7

1.5 µF

1.5 µF

68 nF

15 nF

0 

Ω

 Wire Jumper

2k7

U10

MC145202* or MC145193*

MC145190

* - INDICATES JUMPERED TO +5VA

R36

R32

R36

6k2

1k2

6k2

1k2

R32

R36

R28

R29

Not Installed *

3k92

10R0

36k5

1.0 µF

1.0 µF

470 nF

33 nF

Not Installed

Not Installed

MC145190

4k7

1k5

10R0

36k5

R36

R49

R52

10R0

Not Installed

33R2

49R9

R36

R48

47R5

27R4

33R2

49R9

27R4

C37

1.5 µF

1.5 µF

1.0 µF

VCO INSTALLED (U17)

LVCO-2309 TEV

VCO-190-435 MT

RX 427.4 - 451.4 MHz

TX 406 - 470 MHz

  11 DEC 00

DWG No:       OS3450M3D

4-15

BOARD REV:             2.0

A

B

TITLE:          OS(R/T)-3H 406 - 470 MHz ANALOG BOARD SCHEMATIC DIAGRAM

Enhanced AM/FM Synthesizer Instruction Manual OS(R/T)-3(A/H) 29 - 470 MHz

C57, R22

C60

L4, L5

J2, JU1

R58, RV1

BOARD No:  50028-02    

U17

R38,R42,R43

R20,R27,R37

Q4

D1 - D3

C40,C41,C48

C23,C24,C28

U12 - U14

DWG REV DATE:      

DATE:             23 MAY 96

TCXO1

LED1

L12

D5

DWN BY:  COLIN GUNN

APRVD:

-----

UNUSED REFERENCE DESIGNATORS

HIGHEST REFERENCE DESIGNATORS

TP4 LOOP CONTROL
SET FOR 

≈

 4.5 VDC

RF OUTPUT

3.5 dB Pad

LOCK DETECT
OUTPUT
ACTIVATED WHEN
UNLOCKED

NC

NC

NC

MODULATION INPUT

POWER CNTRL

ID

≈

10 mA

LOCK DETECT

DATA INPUT

CLK

ENABLE
ACTIVE HIGH

TO ALL +8VA SUPPLY POINTS

EXTERNAL REFERENCE
INPUT (50

Ω

)

FREQ CONTROL

TCXO MOD INPUT

+9.5 VDC SUPPLY

TO ALL +5VA SUPPLY POINTS

NC

NC

REFOUT

LD

øR

øV

VPD

PDOUT

GND

RX

TEST 1

FIN

REFIN

DIN

CLK

ENB

OUTPUTA

OUTPUTB

VDD

TEST 2

VCC

FIN

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

U10
SEL

AGND

AGND

GND

VCNTRL

OUTPUT

VCC

1

4

2

3

9.6 MHz

TCXO1

AGND

1.0nF

C31

SEL

R29

OUTPUT

SENSE

5VTAP

FB

INPUT

ERROR

SHDN

GND

1

2

6

7

4

3

5

8

LP2951

U8

AGND

+

4.7uF

C15

AGND

10R0

R15

+

47uF

C18

AGND

5K11

R16

5K11

R17

AGND

3

2

1

5K0

RV1

AGND

100nF

C16

+

47uF

C6

AGND

AGND

10nF

C7

10nF

C14

AGND

2

1

3

JU1

10nF

C19

+5VA

Z2

AGND

10nF

C22

AGND

10nF

C21

10R0

R23

10R0

R24

+

4.7uF

C27

AGND

+

4.7uF

C20

AGND

+5VA

+5VA

100pF

C35

AGND

AGND

10nF

C34

AGND

1.5uH

L7

+

100uF

C32

AGND

10R0

R30

330pF

C36

AGND

+8VA

AGND

IN OUT

GND

1

3

4

2

MSA-0611

U11

180R

R40

1.5uH

L8

+

22uF

C42

AGND

10nF

C43

AGND

+8VA

330pF

C44

18R2

R41

47R5

R44

47R5

R47

33R2

R46

AGND

330pF

C46

AGND

IN OUT

GND

1

3

4

2

MSA-0611

U15

180R

R50

1.5uH

L9

+

22uF

C50

AGND

10nF

C51

AGND

+8VA

330pF

C52

27R4

R45

330pF

C47

AGND

IN OUT

GND

1

3

4

2

MSA-0611

U16

220R

R51

1.5uH

L10

+

22uF

C54

AGND

10nF

C55

AGND

+8VA

330pF

C56

AGND

18nH

L11

18nH

L12

10pF

C53

15pF

C58

10pF

C59

AGND

AGND

AGND

274R

R55

AGND

18R2

R54

274R

R56

AGND

0

1

J2

AGND

AGND

10R0

R25

1.5uH

L6

1.0nF

C25

AGND

10uH

L2

AGND

1.0nF

C2

P2

OUTPUT

SENSE

5VTAP

FB

INPUT

ERROR

SHDN

GND

1

2

6

7

4

3

5

8

LP2951

U7

AGND

+

4.7uF

C13

AGND

10uH

L3

AGND

1.0nF

C3

P3

E

B

C

BC817

Q2

J1

10K0

R7

1K00

R6

1K00

R9

AGND

AGND

10nF

C4

10nF

C9

AGND

49R9

R1

AGND

100R

R5

100nF

C8

AGND

+5VA

VCC

OUT

GND

1

2

3

OPL550

U1

VCC

OUT

GND

1

2

3

OPL550

U2

VCC

OUT

GND

1

2

3

OPL550

U3

VCC

OUT

GND

1

2

3

OPL550

U4

AGND

AGND

AGND

+5VA

100nF

C10

AGND

OUTB

OUTA

ENB

CLK

DIN

AGND

AGND

11K8

R13

10K0

R14

AGND

+

4.7uF

C12

AGND

Z1

+8VA

AGND

+5VB

100nF

C5

AGND

+5VB

TP1

TP2

TP3

E

B

C

BC817

Q1

AGND

10K0

R4

10K0

R3

OUTPUT

ADJ

GND

NC

VIN

GND

GND

SHDN

8

7

6

5

4

3

2

1

U6
LT1129-IS8

+

100uF

C33

AGND

BYD17J

D4

1R2

R26

AGND

E

B

C

BC817

Q4

10K0

R11

AGND

10K0

R18

+5VA

ENB

CLK

1

2

U5
OP140A

10K0

R12

AGND

AGND

E

B

C

Q3
BC807

10K0

R10

330R

R2

SEL

C45

SEL

R36

SEL

C37

AGND

+8VA

SEL

R28

+

47uF

C29

AGND

AGND

10nF

C30

OUTB

L1
10uH

AGND

C1
1.0nF

P1

AGND

C17
1.0nF

R21
SEL

C26
1.0nF

D1

D1

D2

D2

S1

G1

S2

G2

1

2

3

4

5

6

7

8

U9
SI9945DY

AGND

R39
0R0

10K0

R8

R34
10K0

R35
10K0

+5VA

+5VA

C49
SEL

AGND

+

C11
1.0uF

D5
BAS16

R32
SEL

R53
10K0

TP4

SEL

C38

SEL

C39

AGND

AGND

DIN

LTL-93BEK1

LED1

AGND

680R

R33

AGND

AGND

AGND

AGND

Band Pass Filter
     (Optional)

1

2

F1

GND

MOD I/P

GND

GND

GND

MOD

GND

GND

GND

RF OUT

GND

GND

GND

VCC

GND

GND

VCO

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

U17

R58
274R

R57
18R2

R31
274R

SEL

C60

SEL

R49

SEL

R48

AGND

SEL

R52

R19
0R0