PLL601-12

Dual Output PLL Clock with Selectable Odd Multiplier

47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 09/03/04 Page 2

FREQUENCY SELECTION TABLE

S3

S2

S1

S0

Xtal

Min

Xtal

Max

Multiplier

0

0

0

0

Reserved

0

0

0

1

Reserved

0

0

1

0

19

36

X 4.25

0

0

1

1

15

28

X 11

0

1

0

0

14

26

X 12

0

1

0

1

13

25

X 12.5

0

1

1

0

14

27

X 5.75

0

1

1

1

14

26

X 3

1

0

0

0

14

27

X 11.5

1

0

0

1

15

28

X 5.5

1

0

1

0

15

28

X 2.75

1

0

1

1

16

31

X 5

1

1

0

0

16

31

X 2.5

1

1

0

1

16

31

X 10

1

1

1

0

14

26

X 6

1

1

1

1

13

25

X 6.25

Note: Internal pull-ups default S3, S2, S1, and S0 to ‘1’ when not connected

PIN DESCRIPTIONS

Name

Pin #

Type

Description

VDD

1,11

P

Power Supply.

XIN

2

I

Crystal input.

XOUT

3

I

Crystal output.

S3

4

I

S2

5

I

Multiplier selector pins. These pins have an internal pull-up that will de-

fault SEL to ‘1’ when not connected to GND.

DRIVE_SEL

6

I

Selector pin. If DRIVE_SEL is ‘0’, outputs are at high drive. If ‘1’ or not

connected, outputs are standard drive (internal pull-up).

GND

7,8

P

Ground.

CLK1

9

O

CLK1 output is the output of the reference frequency (crystal) after multi-

plication through the Phase Locked Loop.

CLK2/REF_CLK

10

O

CLK2 or REF_CLK output (depending on REF_SEL). CLK2 is in phase and

at the same frequency as CLK1. REF_CLK provides the same output as

the crystal reference.

REF_SEL

12

I

Selector pin. This pin if set to ‘0’ selects REF_CLK on pin 10. If not con-

nected, it defaults to ‘1’ (pin 10 = CLK2). Internal pull-up.

S1

13

I

S0

14

I

Multiplier selector pins. These pins have an internal pull-up that will de-

fault SEL to ‘1’ when not connected to GND.