ICS307-03

SERIALLY PROGRAMMABLE CLOCK SOURCE

SER PROG CLOCK SYNTHESIZER

IDT® SERIALLY PROGRAMMABLE CLOCK SOURCE

2

ICS307-03

REV L 032911

Pin Assignment

Pin Descriptions

12

1

11

2

10

3

9

X1

4

VDD

5

VDD

6

PD

7

VDD

8

GND

CLK3

GND

CLK2

GND

DIN

SCLK

GND

CS

16

15

14

13

CLK1

X2

16-pin TSSOP

Pin

Number

Pin

Name

Pin

Type

Pin Description

1

X1

XI

Connect to input reference clock or crystal.

2

VDD

Power

Power connection for crystal oscillator.

3

VDD

Power

Power connection for PLL.

4

VDD

Power

Power connection for inputs and outputs.

5

GND

Power

Ground connection for crystal oscillator.

6

GND

Power

Ground connection for PLL.

7

GND

Power

Ground connection for inputs and outputs.

8

CLK1

Output

Clock 1 output.

9

SCLK

Input

Programming interface - Serial clock input. Internal pull-up.

10

CS

Input

Programming interface - LOAD input. Internal pull-down.

11

DIN

Input

Programming interface - Serial data input. Internal pull-up.

12

CLK2

Output

Clock 2 output.

13

GND

Power

Ground connection.

14

CLK3

Output

Clock 3 output.

15

PD

Input

Crystal, PLL, and outputs are powered-down when low. Internal pull-up.

16

X2

-

Connect to crystal. Leave open if reference clock input is used.