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PI6C2502

Phase-Locked Loop Clock Driver

5

PS8382B

03/20/02

SchematicDrawing

AGND

4.7µF

1.5µH

.002µF

.22µF

4.7µF

.002µF

.22µF

3.3V

Power

Supply

VCC

CLK_OUT

CLK_IN

INPUT_CLOCK

25-150 MHZ

AVCC

Board

AVCC

FB_IN

5-12pF

Feedback

Capacitor

Decoupling Capacitors

Series Terminating Resistor

PI6C2502

1.5µH

FB_OUT

GND

ClockChipLayout

AVCC Island for PI6C2510

AVCC

GND

C

R

C

C

CFB

CLK_IN

AGND

AGND

AGND

GND

VCC

Use Wider Traces for Ground and Power

(0.034-inch width, 0.1-inch pitch)

Legend:

GND = Via to Digital Ground

AGND = Via to Analog Ground

VCC = Via to 3.3V Digital Power

AVCC = Via to 3.3V Analog Power

R = Termination Resistor 12-32

Ω

C = Decoupling Capacitor

L = Inductor

CFB = Feedback Capacitor

L

C

C

C

PI6C2502

GND

AGND

FB_OUT

FB_IN

CLK_OUT

L