Digital Video Clock Source

MDS 664-01 A

2

Revision 050704

Integrated Circuit Systems, Inc.

ICS664-01

Pin Assignment

16-pin TSSOP

Output Clock Selection Table

Pin Descriptions

12

1

11

2

10

X1/REFIN

X2

3

9

VDD

4

VDD

N/C

5

S0

6

VDD

7

GND

8

GND

GND

SELIN

VDDO

S3

S1

S2

CLK

16

15

14

13

S3

S2

S1

S0

Input

Frequency

(MHz)

Output

Frequency

(MHz)

0000

Power down

0001

Pass thru

Input Freq

0010

27

74.25

0011

27

74.175824

0100

13.5

74.25

0101

13.5

74.175824

0110

RESERVED

RESERVED

0111

RESERVED

RESERVED

1000

74.25

54

1001

74.175824

54

1010

RESERVED

RESERVED

1011

RESERVED

RESERVED

1100

54

74.25

1101

54

74.175824

1110

54

13.5

1111

27

13.5

Pin

Number

Pin

Name

Pin

Type

Pin Description

1

X1/REFIN

Input

Connect this pin to a crystal or clock input

2

VDD

Power

Power supply for crystal oscillator.

3

VDD

Power

Power supply for PLL.

4

S0

Input

Output frequency selection. Determines output frequency per table above. On chip pull up.

5

GND

Power

Ground for output stage.

6

GND

Power

Ground for PLL.

7

S3

Input

Output frequency selection. Determines output frequency per table above. On chip pull up.

8

S2

Input

Output frequency selection. Determines output frequency per table above. On chip pull up.

9

CLK

Output

Clock output.

10

S1

Input

Output frequency selection. Determines output frequency per table above. On chip pull up.

11

VDDO

Power

Power supply for output stage.

12

SEL

Input

Low for clock input, high for crystal. On chip pull up.

13

GND

Power

Connect to ground.

14

VDD

Power

Power supply.

15

NC

—

No connect. Do not connect to anything.

16

X2

Input

Connect this pin to a crystal. Leave open if using a clock input.