Copyright  ANPEC Electronics Corp.

Rev. A.3 - Nov., 2002

APV2002

www.anpec.com.tw

4

Pad Layout

Pad #

Symbol

Description

1

XTB

Crystal drive

2

OE

Output enable

3

S0

Frequency select pad1

4

S1

Frequency select pad2

5

GND

Ground

6

C/T (Note3)

Duty cycle modulation

7

QO

Frequency output

8

NC (Note4)

Reserve

9

VDD

Power

10

OE

Output enable

11

XT

Crystal feedback

Note3 : C/T-no connection or connect to VDD for above 30Meg XO; connect to GND for below 30Meg XO.

Note4 : NC-no connection

2

1

3

4

5

6

11

10

7

8

9

Frequency Selector

S1

S0

QO

X

X

Default

XO

¡Ò

2

OX

¡Ò

4

OO

¡Ò

8

Note5 : X-no connection , O-connect to GND

Note6 : This function for die use only

Pad Description