Integrated
Circuit
Systems, Inc.
L
OW
S
KEW
, 1-
TO
-10
D
IFFERENTIAL
-
TO
-2.5V/3.3V LVPECL/ECL F
ANOUT
B
UFFER
F
EATURES
•
10 differential 2.5V/3.3V LVPECL / ECL outputs
•
2 selectable differential input pairs
•
PCLKx, nPCLKx pairs can accept the following
differential input levels: LVPECL, LVDS, CML, SSTL
•
Maximum output frequency: >3GHz
•
Translates any single ended input signal to 3.3V
LVPECL levels with resistor bias on nPCLK input
•
Output skew: 20ps (typical)
•
Part-to-part skew: 85ps (typical)
•
Propagation delay: 495ps (typical)
•
Jitter, RMS: < 0.03ps (typical)
•
LVPECL mode operating voltage supply range:
V
CC
= 2.375V to 3.8V, V
EE
= 0V
•
ECL mode operating voltage supply range:
V
CC
= 0V, V
EE
= -3.8V to -2.375V
•
-40°C to 85°C ambient operating temperature
•
Lead-Free package fully RoHS compliant
ICS853111B
G
ENERAL
D
ESCRIPTION
The ICS853111B is a low skew, high perfor-
mance 1-to-10 Differential-to-2.5V/3.3V LVPECL/
HiPerClockS™
ECL Fanout Buffer and a member of the
HiPerClock S™ family of High Performance
Clock Solutions from ICS. The ICS853111B
is characterized to operate from either a 2.5V or a 3.3V
power supply. Guaranteed output and part-to-par t skew
characteristics make the ICS853111B ideal for those
clock distribution applications demanding well defined
performance and repeatability.
ICS
B
LOCK
D
IAGRAM
PCLK0
nPCLK0
PCLK1
nPCLK1
0
1
Q0
nQ0
Q1
nQ1
Q2
nQ2
CLK_SEL
V
BB
Q3
nQ3
Q4
nQ4
Q5
nQ5
Q6
nQ6
Q7
nQ7
Q8
nQ8
Q9
nQ9
853111BY
P
IN
A
SSIGNMENT
nQ3
nQ4
nQ5
24 23 22 21 20 19 18 17
V
CCO
nQ2
Q2
nQ1
Q1
nQ0
Q0
V
CCO
25
26
27
28
29
30
31
32
1
V
CC
nQ6
Q3
Q4
Q5
Q6
16
15
14
13
12
11
10
9
2
CLK_SEL
V
CCO
Q7
nQ7
Q8
nQ8
Q9
nQ9
V
CCO
ICS853111B
3
PCLK0
4
nPCLK0
5
VBB
6
PCLK1
7
nPCLK1
8
V
EE
REV. A JUNE 16, 2005
32-Lead TQFP, E-PAD
7mm x 7mm x 1.0mm package body
Y Package
Top View
www.icst.com/products/hiperclocks.html
1
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