854058AG
www.icst.com/products/hiperclocks.html
REV. A APRIL 8, 2004
1
Integrated
Circuit
Systems, Inc.
ICS854058
8:1
D
IFFERENTIAL
-
TO
-LVDS C
LOCK
M
ULTIPLEXER
PRELIMINARY
G
ENERAL
D
ESCRIPTION
The ICS854058 is an 8:1 Differential-to-LVDS Clock
Multiplexer which can operate up to 2.5GHz and
is a member of the HiPerClockSTM family of High
Performance Clock Solutions from ICS. The
ICS854058 has 8 selectable differential clock in-
puts. The PCLK, nPCLK input pairs can accept LVPECL, LVDS,
CML or SSTL levels. The fully differential architecture and low
propagation delay make it ideal for use in clock distribution cir-
cuits. The select pins have internal pulldown resistors. The SEL2
pin is the most significant bit and the binary number applied to
the select pins will select the same numbered data input (i.e.,
000 selects PCLK0, nPCLK0).
F
EATURES
High speed 8:1 differential multiplexer
1 differential LVDS output
8 selectable differential PCLK, nPCLK inputs
PCLKx, nPCLKx pairs can accept the following
differential input levels: LVPECL, LVDS, CML, SSTL
Maximum output frequency: 2.5GHz
Translates any single ended input signal to
LVDS levels with resistor bias on nPCLKx input
Part-to-part skew: TBD
Propagation delay: 595ps (typical)
Supply voltage range: 3.135V to 3.465V
-40C to 85C ambient operating temperature
B
LOCK
D
IAGRAM
P
IN
A
SSIGNMENT
HiPerClockSTM
ICS
ICS854058
24-Lead, 173-MIL TSSOP
4.4mm x 7.8mm x 0.92mm body package
G Package
Top View
PCLK0
nPCLK0
PCLK1
nPCLK1
V
DD
SEL0
SEL1
SEL2
PCLK2
nPCLK2
PCLK3
nPCLK3
PCLK7
nPCLK7
PLCK6
nPCLK6
V
DD
Q0
nQ0
GND
PCLK5
nPCLK5
PCLK4
nPCLK4
PCLK0
nPCLK0
PCLK1
nPCLK1
PCLK2
nPCLK2
PCLK3
nPCLK3
000
011
001
010
SEL1 SEL0
Q0
nQ0
PCLK4
nPCLK4
PCLK5
nPCLK5
PCLK6
nPCLK6
PCLK7
nPCLK7
SEL2
100
111
101
110
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
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.
854058AG
www.icst.com/products/hiperclocks.html
REV. A APRIL 8, 2004
4
Integrated
Circuit
Systems, Inc.
ICS854058
8:1
D
IFFERENTIAL
-
TO
-LVDS C
LOCK
M
ULTIPLEXER
PRELIMINARY
T
ABLE
4A. P
OWER
S
UPPLY
DC C
HARACTERISTICS
,
V
DD
= 3.3V 5%
l
o
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8
6
A
m
T
ABLE
4C. LVPECL DC C
HARACTERISTICS
,
V
DD
= 3.3V 5%
l
o
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:
0
K
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C
P
V
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V
=
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V
5
6
4
.
3
=
0
5
1
A
7
K
L
C
P
n
:
0
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=
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3
=
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5
1
A
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7
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0
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P
V
D
D
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,
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5
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4
.
3
=
N
I
V
0
=
0
1
-
A
7
K
L
C
P
n
:
0
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=
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:
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D
D
.
V
3
.
0
+
A
BSOLUTE
M
AXIMUM
R
ATINGS
Supply Voltage, V
DD
4.6V
Inputs, V
I
-0.5V to V
DD
+ 0.5 V
Outputs, I
O
Continuous Current
10mA
Surge Current
15mA
Package Thermal Impedance,
JA
70C/W (0 lfpm)
Storage Temperature, T
STG
-65C to 150C
NOTE: Stresses beyond those listed under Absolute
Maximum Ratings may cause permanent damage to the
device. These ratings are stress specifications only. Functional
operation of product at these conditions or any conditions be-
yond those listed in the
DC Characteristics or AC Character-
istics is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect product reliability.
T
ABLE
4B. LVCMOS/LVTTL DC C
HARACTERISTICS
,
V
DD
= 3.3V5%, T
A
= -40C
TO
85C
l
o
b
m
y
S
r
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a
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a
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2
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E
S
:
0
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E
S
2
V
D
D
3
.
0
+
V
V
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a
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2
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:
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.
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-
8
.
0
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p
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2
L
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:
0
L
E
S
V
D
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V
=
N
I
V
5
6
4
.
3
=
0
5
1
A
I
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r
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w
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2
L
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S
:
0
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S
V
D
D
V
,
V
5
6
4
.
3
=
N
I
V
0
=
0
1
-
A
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