ICS671-01

ZERO DELAY LOW SKEW BUFFER AND MULTIPLIER

ZDB AND MULTIPLIER

IDT™ / ICS™ ZERO DELAY LOW SKEW BUFFER AND MULTIPLIER

2

ICS671-01

REV F 051310

Pin Assignment

Output Clock Mode Select Table

Note 1. Outputs are in high impedence state

Note 2: In S1:S0 = 01 Mode, only the x1 output on CLK 8 will be zero delay. The x2 and x5 outputs can power-up in different

states so the skew relationship is not defined.

Pin Descriptions

12

1

11

2

10

CL K IN

FB IN

3

9

CL K 1

4

CL K 2

CL K 8

5

VD D

6

CL K 7

7

GN D

8

CL K 3

VD D

GN D

CL K 6

CL K 4

CL K 5

S0

S1

16

15

14

13

16 pin na rrow (150 m il) S O IC

S1

S0

CLK1:6

CLK7

CLK8

Input Range

0

0

Tri-state (note 1)

Tri-state (note 1)

Tri-state (note 1)

-

0

1

x2 (note 2)

x5 (note 2)

x1

5 to 30 MHz

1

0

x2

x2

x2

15 to 80 MHz

1

1

x4

x4

x4

7.5 to 40 MHz

Pin

Number

Pin

Name

Pin Type

Pin Description

1

CLKIN

Input

Clock input.

2-3, 6-7, 10-11

CLK1:6

Output

Clock outputs 1:6. See table above.

4

VDD

Power

Power supply. Connect both pins to the same voltage (either 3.3V or 5V).

5

GND

Power

Connect to ground.

8

S0

Input

Select input 0. See table above.

9

S1

Input

Select input 1. See table above.

12

GND

Power

Connect to ground.

13

VDD

Power

Power supply. Connect both pins to the same voltage (either 3.3V or 5V).

14

CLK7

Output

Clock output 7. See table above.

15

CLK8

Output

Clock output 8. See table above. Normally use this clock as feedback.

16

FBIN

Input

Feedback input. Connect to CLK8 under normal operations.