CPC5620/CPC5621

8

www.clare.com

R04

Figure 4. Reactive Termination Application Circuit Schematic

¹This design was tested and found to comply with FCC Part 68 with this

Sidactor. Other compliance requirements may require a different part.

²Higher-noise power supplies may require substitution of a 220

μH inductor,

Toko 380HB-2215 or similar. See the Power Quality section of Clare

application note AN-146, Guidelines for Effective LITELINK Designs for

more information.

page 13. Also see Clare’s application note AN-146 for heat sinking

recommendations for the CPC5602C FET.

+

-

OH

RING

TX+

RX+

TX-

RX-

3.3 or 5V

C13

C14

C2

C4

R1

80.6K

10

BR-

BR-

BR-

TIP

RING

U1

LITELINK

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

VDD

TXSM

TX-

TX+

TX

GND

RX-

RX+

SNP+

SNP-

RXF

RX

MODE

OH

RING

REFL

TXF

ZTX

ZNT

TXSL

BR-

NTS

GAT

NTF

DCS1

DCS2

ZDC

BR-

RPB

RXS

VDDL

DB1

BR-

BR-

A

A

A

C9

0.1μ

C16

10μ

FB1

600 Ω

200 mA

C1

1μ

60.4K

5%

200K

R13

1M

5%

C10

0.01μ

500V

R15

1.69M

R20

2

6.49M

6.49M

0.027μ

130K

R3

1.5M

C7

4

220p

C8

220p

1.8M

1.8M

1.8M

1.8M

R4

68.1

BR-

NOTE: Unless otherwise noted:

Resistor values are in Ohms

All resistors are 1%.

Capacitor values are in Farads.

R14

47

Q1

CPC5602C

3

8.2

R10

59

R18

10K

R11

169

C20

0.68μ

R12

221K

BR-

BR-

C15

0.01μ

500V

200K

110K

0.1μ

0.1μ

0.1μ

0.1μ

R16

R8

R5

R75

BR-

C21

100p

R76

R22

R21

C12

R6

R44

R7

R45

BR-

4

R2

CID

CID