CLK2
VDD
7
8
10
9
CLK3
GND
...
CLK6
PS8560A
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PI49FCT20802/
PI49FCT20803
1:5/1:7 2.5V Clock Buffer for
Networking Applications
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
• Multiple V
DD
, GND pins for noise reduction
• 2.5V supply voltage and 3V tolerant input
• Packages:
- 16-pin TSSOP (L)
- 16-pin QSOP (Q)
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.
PI49FCT2080x is characterized for operation from –40
°
C to 85
°
C.
Pin Configuration (PI49FCT20802)
BUF_IN
GND
CLK0
VDD
CLK1
GND
NC
VDD
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VDD
CLK4
CLK3
Block Diagram (PI49FCT20802)
CLK0
CLK1
BUF_IN
GND
CLK2
VDD
NC
GND
CLK2
CLK3
CLK4
Pin Configuration (PI49FCT20803)
BUF_IN
GND
CLK0
VDD
CLK1
GND
1
2
3
4
5
6
16
15
14
13
12
11
VDD
CLK6
Block Diagram (PI49FCT20803)
CLK0
CLK1
CLK5
GND
CLK4
VDD
BUF_IN
CLK2
CLK3
1
09/27/04
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
