Digital Video Clock Source

MDS 660 E

2

Revision 040104

Integrated Circuit Systems, Inc.

ICS660

Pin Assignment

16-pin 4.40 mil body, 0.65 mm pitch TSSOP

Output Clock Selection Table

Pin Descriptions

12

1

11

2

10

X1/REFIN

X2

3

9

VDD

4

VDD

REF

5

S0

6

VDDR

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

13.5

74.25

0001

13.5

74.175824

0010

27

74.25

0011

27

74.175824

0100

Pass thru

Input Freq

0101

74.25

74.175824

0110

74.175824

74.25

0111

Power down

1000

16.9344

27

1001

125

106.25

1010

14.3181818

27

1011

106.25

125

1100

27.027

27

1101

27

27.027

1110

27

14.3181818

1111

27

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

VDDR

Power

Power supply for reference output. Ground to turn off REF.

15

REF

Output

Reference clock output.

16

X2

Input

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