P2084A

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Pin Configuration

Pin Description

Pin#

Pin Name

Type

Description

1

XIN / CLKIN

I

Connect to crystal or clock input.

2

XOUT

I

Crystal connection. If using an external reference, this pin must be left unconnected.

3

FS1

I

Digital logic input used to select input frequency range. (See Input Frequency Selection.)

This pin has an internal pull-up resistor.

4

LF

I

External loop filter for the PLL. (See Loop Filter Selection Table for value.)

5

VSS

P

Ground connection. Connect to system ground.

6

CLKOUT

O

Clock output.

7

FS0

I

Digital logic input used to select input frequency range. (See Input Frequency Selection.)

This pin has an internal pull-up resistor.

8

VDD

P

Connect to +3.3V.

Input Frequency Selection

FS1

FS0

Input (MHz)

Output Frequency Scaling

P2084A

0

0

3 to 9

12 to 36

0

1

10 to 19

40 to 76

1

0

20 to 38

80 to 152

1

1

39 to 78

156 to 312

CLKOUT

FS0

XOUT

VSS

XIN / CLKIN

6

1

2

3

4

5

8

LF

FS1

VDD

7

P2084A