PI6C48535-11
3.3V Low Skew 1-to-4
Crystal/LVCMOS to LVPECL Fanout Buffer
Features
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Maximum operation frequency: 500MHz
4 pair of differential LVPECL outputs
Selectable CLK and crystal inputs
CLK accepts LVCMOS, LVTTL input level
Output Skew: 30ps (maximum)
Part-to-part skew: 150ps (maximum)
Propagation delay: 1.5ns (maximum)
3.3V power supply
Pin-to-pin compatible to ICS8535-11
Operating Temperature: -40
o
C to 85
o
C
Packaging (Pb-free & Green available):
- 20-pin TSSOP (L)
Description
The PI6C48535-11 is a high-performance low-skew LVPECL
fanout buffer. PI6C48535-11 features selectable of single-ended
clock or crystal inputs and translates to four LVPECL outputs.
The CLK input accepts LVCMOS or LVTTL signals. The outputs
are synchronized with input clock during asynchronous assertion
/deassertion of CLK_EN pin. PI6C48535-11 is ideal for crystal or
LVCMOS/LVTTL to LVPECL translation. Typical clock transla-
tion and distribution applications are data-communications and
telecommunications.
Block Diagram
CLK_EN
D
Q
LE
CLK
Xtal1
Xtal2
0
1
Q
0
n
Q
0
Q
1
n
Q
1
Q
2
n
Q
2
Q
3
n
Q
3
Pin Diagram
V
EE
CLK_EN
CLK_SEL
CLK
NC
Xtal
1
Xtal
2
NC
NC
V
CC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Q
0
N
Q
0
V
CC
Q
1
N
Q
1
Q
2
N
Q
2
V
CC
Q
3
N
Q
3
CLK_SEL
1
PS9738
05/27/04
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
