10

SP319DS/08

SP319 20Mbps, +5V-Only V.35 Interface with RS-232 (V.28) Control Lines

© Copyright 2000 Sipex Corporation

0.1

µF

25

27 26 30

32

1N5819

C1-

C2-

C1+

C2+

0.1

µF

SP319CF

14

79

28

31

0.1

µF

+5V

15

20

1

22

0.1

µF

0.1

µF

25

27 26 30

32

1N5819

C1-

C2-

C1+

C2+

0.1

µF

28

31

0.1

µF

+5V

0.1

µF

1

14

20

79

22

15

14

TxD (103)

TxC (113)

TxCC (114)

RxC (115)

RxD (104)

DTR (108)

RTS (105)

RL (140)

LL (141)

DSR (107)

CTS (106)

DCD (109)

TM (142)

78

80

21

2

3

2

3

1

19

16

13

17

24

1

3

2

3

2

1

16

13

17

24

78

80

19

21

P

S

U

W

Y

AA

X

V

T

R

H

C

N

L

E

D

F

NN

P

S

U

W

Y

AA

X

V

T

R

H

C

L

E

D

F

N

NN

29, 34, 43, 60, 64, 72

29, 34, 43, 60, 64, 72

B

B

AA

ISO2593

34-PIN DTE/DCE

INTERFACE CONNECTOR

ISO2593

34-PIN DTE/DCE

INTERFACE CONNECTOR

SP319CF

Figure 25. Typical DTE-DCE V.35 Connection using the SP319

Figure 21. Charge Pump Phase 1

Figure 22. Charge Pump Phase 2

+10V

+

+

++

–

–

–

–

–5V

–5V

+5V

+

+

++

–

–

–

–

Figure 23. Charge Pump Phase 3

Figure 24. Charge Pump Phase 4

–10V

+

+

++

–

–

–

–

–5V

+5V

–5V

+

+

++

–

–

–

–