Application Circuits

Single PWM Mode

Note:

* For normal application, a capacitor C is not necessary. However, if you want to extend the reset time,a0.1

mF

capacitor can be placed on the RES pin.

HT83XXX

Rev. 0.10

19

August 25, 2003

Preliminary

Mask Option

Mask Option

Description

PA Wake-up

Enable or disable PA wake-up function

Watchdog Timer (WDT)

Enable or disable WDT function

WDT clock source is from WDTOSC or T1

PA Pull-high

Enable or disable PA pull-high

4MHz

±10%

6MHz

±10%

8MHz

±10%

100k

W

75k

W

62k

W

R E S

V D D

O S C 1

0 6 & ! : : :

S p e a k e r

( 8 / 1 6 )

P W M 1

P A 0 ~ P A 7

R ( 1 0 0 k W ~ 6 2 k W )

V S S

P W M 2

V D D A

V S S A

4 7 m F

C

0 . 1 m F

O S C 1

0 6 & ! : : :

S p e a k e r

( 8 / 1 6 )

P W M 1

R ( 1 0 0 k W ~ 6 2 k W )

P W M 2

V D D A

V S S A

4 7 m F

Q 2

N P N B C E

R E S

V D D

P A 0 ~ P A 7

V S S

C

0 . 1 m F