HTG2190 datasheet(33/50 Pages) HOLTEK

33 / 50 page

Application Circuits

Note: * Optional capacitors can be added to get a more accurate frequency.

Since each crystal has its own characteristics, the user should consult the crystal manufacturer for appropriate

value of external capacitors.

** R=100k

W,fSYS=2MHz

R=200k

W,fSYS=1MHz

HTG2190

Rev. 1.20

July 5, 2002

O S C I

P A 0 ~ P A 7

H T G 2 1 9 0

X I N / S E G 6 3 / P C 7

X O U T / S E G 6 2 / P C 6

I N T / S I N

C O M 0 ~ 1 5

S E G 0 ~ 6 3

( M a x . )

L C D

P A N E L

V D D

P W M 1 / P B 0

P W M 2 / A U D

P B 5 / S C L K

P B 4 / S O U T

P B 2

P B 3

P B 6 / T M R 1

R E S

H T G 2 1 9 0

V O U T 1 1

P B 7 / T M R 0

C A P 1

C A P 2

V O U T 2 2

V O U T 3 3

V O U T 4 4

C A P 3

C A P 4

O S C I

P A 0 ~ P A 7

X I N / S E G 6 3 / P C 7

X O U T / S E G 6 2 / P C 6

I N T / S I N

L C D

P A N E L

P W M 2 / A U D

P B 5 / S C L K

P B 4 / S O U T

P B 2

P B 3

P B 6 / T M R 1

R E S

V O U T 1 1

P B 7 / T M R 0

C A P 1

C A P 2

V O U T 2 2

V O U T 3 3

V O U T 4 4

C A P 3

C A P 4

V D D

8 W

S P K

8 0 5 0

3 2 W S P K

o r B u z z e r

C O M 0 ~ 1 5

S E G 0 ~ 6 3

( M a x . )

3 2

s p e a k e r / b u z z e r a p p l i c a t i o n

s p e a k e r a p p l i c a t i o n

* *

6 2 k W

( f S Y S = 4 M H z )

* *

6 2 k W

( f S Y S = 4 M H z )

0 . 1 m .

3 0 k W

2 2 0 0 p .

0 . 1 m .

2 k W

3 0 k W

2 2 0 0 p .

0 . 1 m .

HTG2190 Datasheet(PDF) 33 Page - Holtek Semiconductor Inc

HTG2190 Datasheet(HTML) 33 Page - Holtek Semiconductor Inc

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