19

SP516DS/02

SP516 20Mbps 7 Driver, 7 Reciver Multiprotocol Serial Transceiver

© Copyright 2000 Sipex Corporation

Figure 45. SP516 Typical Operating Circuit

15 TxC

63 TT(a)

65 TT(b)

6

TTEN

RD(a) 70

RxD 1

RD(b) 71

RT(a) 37

RxC 20

RT(b) 38

CS(a) 66

CTS 80

CS(b) 67

DM(a) 68

DSR 78

DM(b) 69

RR(a) 35

DCD 19

RR(b) 36

IC(a) 39

RI 21

IC(b) 40

SCT(a) 76

SCT 79

SCTEN 7

SCT(b) 77

14 TxD

61 SD(a)

59 SD(b)

2

SDEN

22 ST

42 ST(a)

44 ST(b)

23 STEN

13 DTR

58 TR(a)

56 TR(b)

3

TREN

16 RTS

54 RS(a)

52 RS(b)

4

RSEN

17 RL

47 RL(a)

45 RL(b)

18 RLEN

24 LL

51 LL(a)

49 LL(b)

5

LLEN

22

µF

22

µF

1N5819

VCC

VDD

C1-

C2-

VSS

C1+

C2+

22

µF

+5V

10

µF

27

25

26

31

28

30

22

µF

32

9

10

11

12

1

0

1

0

RS-422 Mode

Input Word

A

B

Charge Pump

A — Receiver high-Z circuitry,

V.11, & V.35 termination

resistor circuitry (RxD,

RxC & SCT).

B — Driver high-Z circuitry &

V.35 termination circuitry

(TxD, TxC & ST).

SP516

(Additional GND Pins: 34, 43, 46, 50, 53, 57, 60, 64, 72, 75)

(Additional V

8

TERM_OFF

DEC3

DEC2

DEC1

DEC0

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