1

PS8560A

09/27/04

PinConfiguration(PI49FCT20802)

Features

• High Frequency >150 MHz

• High-speed, low-noise, non-inverting clock buffer

– PI49FCT20802 is a 1:5 buffer

– PI49FCT20803 is a 1:7 buffer

• Low skew < 150ps

• Low duty cycle distortion < 300ps

• Low propagation delay < 3.5ns

• 2.5V supply voltage and 3V tolerant input

• Packages:

- 16-pin TSSOP (L)

- 16-pin QSOP (Q)

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1:5/1:7 2.5V Clock Buffer for

Networking Applications

PI49FCT20802/

PI49FCT20803

Description

The PI49FCT2080x is 2.5V, high-speed, low noise, non-inverting

clock buffer. It is designed to target networking applications that

require low-skew, low-jitter, and high-frequency clock distribution.

It provides output-to-output skew as low as 150ps, and is an ideal

clock distribution device for synchronous systems. PI49FCT2080x

is a clock buffer from a single input that produces five outputs

on PI49FCT20802 and seven outputs on PI49FCT20803.

1

2

3

VDD

4

CLK1

5

CLK0

6

NC

7

VDD

8

GND

VDD

CLK3

GND

VDD

NC

GND

16

15

14

13

12

11

10

9

BUF_IN

GND

CLK2

CLK4

CLK4

CLK2

CLK1

CLK0

BUF_IN

CLK3

PinConfiguration(PI49FCT20803)

1

2

3

VDD

4

CLK1

5

CLK0

6

CLK2

7

VDD

8

GND

VDD

CLK5

GND

VDD

CLK3

GND

16

15

14

13

12

11

10

9

BUF_IN

GND

CLK4

CLK6

CLK6

CLK2

CLK1

CLK0

BUF_IN

CLK3

Block Diagram (PI49FCT20802)

Block Diagram (PI49FCT20803)