855011AM
www.icst.com/products/hiperclocks.html
REV. A AUGUST 18, 2004
1
Integrated
Circuit
Systems, Inc.
ICS855011
L
OW
S
KEW
, 1-
TO
-2
D
IFFERENTIAL
-
TO
-2.5V/3.3V CML F
ANOUT
B
UFFER
PRELIMINARY
G
ENERAL
D
ESCRIPTION
The ICS85 5011 is a low skew, high perfor-
mance 1 - t o - 2 Differential-to-2.5V/3.3V CML
F a n o u t B u f f e r a n d a m e m b e r o f t h e
HiPerClockS TM
family of High Perfor mance
Clock Solutions from ICS. The ICS855011
is characterized to operate from either a 2.5V or a 3.3V
power supply. Guaranteed output and par t-to-par t skew
characteristics make the ICS855011 ideal for those
clock distribution applications demanding well defined
perfor mance and repeatability.
F
EATURES
2 differential 2.5V/3.3V CML outputs
1 differential PCLK, nPCLK input pair
PCLK, nPCLK pair can accept the following
differential input levels: LVPECL, LVDS, CML, SSTL
Output frequency: >3GHz
Translates any single ended input signal to 3.3V
LVPECL levels with resistor bias on nPCLK input
Output skew: 5ps (typical)
Part-to-part skew: TBD
Propagation delay: 242ps (typical)
Operating voltage supply range:
V
CC
= 2.375V to 3.8V, V
EE
= 0V
-40C to 85C ambient operating temperature
B
LOCK
D
IAGRAM
P
IN
A
SSIGNMENT
ICS855011
8-Lead SOIC
3.90mm x 4.90mm x 1.37mm package body
M Package
Top View
Q0
nQ0
Q1
nQ1
1
2
3
4
HiPerClockSTM
ICS
Vcc
PCLK
nPCLK
V
EE
8
7
6
5
Q0
nQ0
Q1
nQ1
PCLK
nPCLK
The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial
product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.
855011AM
www.icst.com/products/hiperclocks.html
REV. A AUGUST 18, 2004
3
Integrated
Circuit
Systems, Inc.
ICS855011
L
OW
S
KEW
, 1-
TO
-2
D
IFFERENTIAL
-
TO
-2.5V/3.3V CML F
ANOUT
B
UFFER
PRELIMINARY
T
ABLE
3A. P
OWER
S
UPPLY
DC C
HARACTERISTICS
,
V
CC
= 2.375V
TO
3.8V; V
EE
= 0V
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R
ATINGS
T
ABLE
3B. LVPECL DC C
HARACTERISTICS
,
V
CC
= 2.375V
TO
3.8V; V
EE
= 0V
NOTE: Stresses beyond those listed under Absolute
Maximum Ratings may cause permanent damage
to the device. These ratings are stress specifi-
cations only. Functional operation of product at
these conditions or any conditions beyond those
listed in the
DC Characteristics or AC Character-
istics is not implied. Exposure to absolute maxi-
mum rating conditions for extended periods may
affect product reliability.
Supply Voltage, V
CC
4.6V (CML mode, V
EE
= 0)
Inputs, V
I
-0.5V to V
CC
+ 0.5 V
Outputs, I
O
Continuous Current
20mA
Surge Current
40mA
Operating Temperature Range, TA -40C to +85C
Storage Temperature, T
STG
-65C to 150C
Package Thermal Impedance,
JA
112.7C/W (0 lfpm)
(Junction-to-Ambient)
T
ABLE
3C. CML DC C
HARACTERISTICS
,
V
CC
= 2.375V
TO
3.8V; V
EE
= 0V
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