—11—

CXD2306Q

2. Example when latch up easily occurs

a. When analog and digital supplies are from different sources

b. When analog and digital supplies are from common source

(i)

(ii)

+5V

CXD2306Q

DIGITAL IC

20

21

28

15

27

25

13

C

C

+5V

C

CXD2306Q

DIGITAL IC

20

21

28

15

27

25

13

C

+5V

+5V

CXD2306Q

DIGITAL IC

20

21

28

15

27

25

13

C