King Billion Electronics Co., Ltd

駿

億

電

子

股

份

有

限

公

司

HE83005

HE80000 SERIES

July 28, 2003

22

V3.4

This specification is subject to change without notice. Please contact sales person for the latest version before use.

15. Application Circuit

VDD

VDD

VDD

Passive

Bias &

Filter

Circuit

Buzzer

or

Speaker

Circuit

Please Refer

AN022 for Speech

Output Circuit

External Slow Clock:

RC osc.

No External Parts is

necessary if user adopt

Internal Fast RC

Clock

External Fast Clock:

Crystal osc.

External Fast Clock:

RC osc.

External Slow Clock:

Crystal osc.

SXO

SXI

FXI

SXI

SXI

FXI

FXO

SXO

SXO

FXO

FXI

SXO

C3

0.1uF

C2

100uF

BATTERY1

3V

C1

0.1uF

SP1

SPEAKER

Q1

NPN

R: Please ref . AN016

20P

20P

R > 8.2 KOhm

20P

20P

SW1

RESET

32.768K

2MHZ

R1

50K

C: Please Ref . AN016

HE83005

VDD

FXO

FXI

SXI

SXO

VO

PWMP

PWMN

PRTD[7:0]

PRTC[7:0]

RSTP_N

GND

OPIN

OPIP

OPO