844008AYI-15
www.icst.com/products/hiperclocks.html
REV. A FEBRUARY 2, 2006
1
Integrated
Circuit
Systems, Inc.
ICS844008I-15
F
EMTO
C
LOCKS
TM C
RYSTAL
-
TO
-
LVDS F
REQUENCY
S
YNTHESIZER
PRELIMINARY
G
ENERAL
D
ESCRIPTION
The ICS844008I-15 is an 8 output LVDS
Synthesizer optimized to generate PCI Express
reference clock frequencies and is a member
of the HiPerClocks
TM
family of high performance
clock solutions from ICS. Using a 25MHz
parallel resonant crystal, the following frequencies can be
generated based on F_SEL pin: 100MHz or 125MHz. The
ICS844008I-15 uses ICS' 3
rd
generation low phase noise
VCO technology and can achieve <1ps typical rms phase
jitter, easily meeting PCI Express jitter requirements. The
ICS844008I-15 is packaged in a 32-pin LQFP package.
F
EATURES
Eight LVDS outputs
Crystal oscillator interface
Supports the following output frequencies:
100MHz or 125MHz
VCO: 500MHz
RMS phase jitter @ 125MHz, using a 25MHz crystal
(1.875MHz - 20MHz): 0.42ps (typical)
Full 3.3V supply modes
-40C to 85C ambient operating temperature
Available in both standard and lead-free RoHS compliant
packages
HiPerClockSTM
ICS
P
IN
A
SSIGNMENT
F
REQUENCY
S
ELECT
F
UNCTION
T
ABLE
32 31 30 29 28 27 26 25
9 10 11 12 13 14 15 16
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
Q0
nQ0
V
DD
Q1
nQ1
GND
Q2
nQ2
MR
nQ4
Q4
GND
V
DD
nQ3
Q3
F_SEL
V
DDA
nPLL_SEL
V
DD
OE2
GND
XT
AL_OUT
XT
AL_IN
OE1
ICS844008I-15
32-Lead LQFP
7mm x 7mm x 1.4mm
package body
Y Package
Top View
Q7
nQ7
V
DD
Q6
nQ6
GND
Q5
nQ5
1
0
Phase
Detector
VCO
500MHz
(w/25MHz
Reference)
M =
20 (fixed)
4
5
OSC
B
LOCK
D
IAGRAM
nPLL_SEL
XTAL_IN
XTAL_OUT
OE1
MR
F_SEL
OE2
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
Q4
nQ4
Q5
nQ5
Q6
nQ6
Q7
nQ7
Pullup
Pullup
25MHz
Pulldown
Pullup
Pulldown
t
u
p
n
I
t
u
p
t
u
O
y
c
n
e
u
q
e
r
F
)
z
H
M
(
t
u
p
n
I
y
c
n
e
u
q
e
r
F
)
z
H
M
(
L
E
S
_
F
r
e
d
i
v
i
D
M
e
u
l
a
V
r
e
d
i
v
i
D
N
e
u
l
a
V
r
e
d
i
v
i
D
N
/
M
e
u
l
a
V
z
H
M
5
2
0
0
2
4
5
5
2
1
z
H
M
5
2
1
0
2
5
4
0
0
1
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.
844008AYI-15
www.icst.com/products/hiperclocks.html
REV. A FEBRUARY 2, 2006
2
Integrated
Circuit
Systems, Inc.
ICS844008I-15
F
EMTO
C
LOCKS
TM C
RYSTAL
-
TO
-
LVDS F
REQUENCY
S
YNTHESIZER
PRELIMINARY
T
ABLE
1. P
IN
D
ESCRIPTIONS
T
ABLE
2. P
IN
C
HARACTERISTICS
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
s
n
o
i
t
i
d
n
o
C
t
s
e
T
m
u
m
i
n
i
M
l
a
c
i
p
y
T
m
u
m
i
x
a
M
s
t
i
n
U
C
N
I
e
c
n
a
t
i
c
a
p
a
C
t
u
p
n
I
4
F
p
R
N
W
O
D
L
L
U
P
r
o
t
s
i
s
e
R
n
w
o
d
ll
u
P
t
u
p
n
I
1
5
k
R
P
U
L
L
U
P
r
o
t
s
i
s
e
R
P
U
ll
u
P
t
u
p
n
I
1
5
k
T
ABLE
3A. OE1 F
UNCTION
T
ABLE
t
u
p
n
I
s
t
u
p
t
u
O
1
E
O
4
Q
n
:
0
Q
n
,
4
Q
:
0
Q
0
e
t
a
t
s
Z
-
i
H
n
i
s
t
u
p
t
u
o
s
e
c
a
l
P
1
n
o
i
t
a
r
e
p
o
l
a
m
r
o
N
T
ABLE
3B. OE2 F
UNCTION
T
ABLE
t
u
p
n
I
s
t
u
p
t
u
O
2
E
O
7
Q
n
:
5
Q
n
,
7
Q
:
5
Q
0
e
t
a
t
s
Z
-
i
H
n
i
s
t
u
p
t
u
o
s
e
c
a
l
P
1
n
o
i
t
a
r
e
p
o
l
a
m
r
o
N
r
e
b
m
u
N
e
m
a
N
e
p
y
T
n
o
i
t
p
i
r
c
s
e
D
2
,
1
0
Q
n
,
0
Q
t
u
p
t
u
O
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
S
D
V
L
.
r
i
a
p
t
u
p
t
u
o
l
a
i
t
n
e
r
e
f
f
i
D
,
2
1
,
3
7
2
,
2
2
V
D
D
r
e
w
o
P
.
n
i
p
y
l
p
p
u
s
e
r
o
C
5
,
4
1
Q
n
,
1
Q
t
u
p
u
O
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
S
D
V
L
.
r
i
a
p
t
u
p
t
u
o
l
a
i
t
n
e
r
e
f
f
i
D
,
3
1
,
6
9
2
,
9
1
D
N
G
r
e
w
o
P
.
d
n
u
o
r
g
y
l
p
p
u
s
r
e
w
o
P
8
,
7
2
Q
n
,
2
Q
t
u
p
t
u
O
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
S
D
V
L
.
r
i
a
p
t
u
p
t
u
o
l
a
i
t
n
e
r
e
f
f
i
D
9
L
E
S
_
F
t
u
p
n
I
p
u
ll
u
P
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
L
T
T
V
L
/
S
O
M
C
V
L
n
i
p
t
c
e
l
e
s
y
c
n
e
u
q
e
r
F
1
1
,
0
1
3
Q
n
,
3
Q
t
u
p
t
u
O
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
S
D
V
L
.
r
i
a
p
t
u
p
t
u
o
l
a
i
t
n
e
r
e
f
f
i
D
5
1
,
4
1
4
Q
n
,
4
Q
t
u
p
t
u
O
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
S
D
V
L
.
r
i
a
p
t
u
p
t
u
o
l
a
i
t
n
e
r
e
f
f
i
D
6
1
R
M
t
u
p
n
I
-
d
ll
u
P
n
w
o
t
e
s
e
r
e
r
a
s
r
e
d
i
v
i
d
l
a
n
r
e
t
n
i
e
h
t
,
H
G
I
H
c
i
g
o
l
n
e
h
W
.
t
e
s
e
R
r
e
t
s
a
M
H
G
I
H
e
v
i
t
c
A
x
Q
n
s
t
u
p
t
u
o
d
e
t
r
e
v
n
i
e
h
t
d
n
a
w
o
l
o
g
o
t
x
Q
s
t
u
p
t
u
o
e
u
r
t
e
h
t
g
n
i
s
u
a
c
e
r
a
s
t
u
p
t
u
o
e
h
t
d
n
a
s
r
e
d
i
v
i
d
l
a
n
r
e
t
n
i
e
h
t
,
W
O
L
c
i
g
o
l
n
e
h
W
.
h
g
i
h
o
g
o
t
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
L
T
T
V
L
/
S
O
M
C
V
L
.
d
e
l
b
a
n
e
8
1
,
7
1
5
Q
,
5
Q
n
t
u
p
t
u
O
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
S
D
V
L
.
r
i
a
p
t
u
p
t
u
o
l
a
i
t
n
e
r
e
f
f
i
D
1
2
,
0
2
6
Q
,
6
Q
n
t
u
p
t
u
O
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
S
D
V
L
.
r
i
a
p
t
u
p
t
u
o
l
a
i
t
n
e
r
e
f
f
i
D
4
2
,
3
2
7
Q
,
7
Q
n
t
u
p
t
u
O
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
S
D
V
L
.
r
i
a
p
t
u
p
t
u
o
l
a
i
t
n
e
r
e
f
f
i
D
5
2
V
A
D
D
r
e
w
o
P
.
n
i
p
y
l
p
p
u
s
g
o
l
a
n
A
6
2
L
E
S
_
L
L
P
n
t
u
p
n
I
-
d
ll
u
P
n
w
o
,
W
O
L
n
e
h
W
.
s
r
e
d
i
v
i
d
e
h
t
o
t
t
u
p
n
i
s
a
K
L
C
_
F
E
R
d
n
a
L
L
P
e
h
t
n
e
e
w
t
e
b
s
t
c
e
l
e
S
L
L
P
(
k
c
o
l
c
e
c
n
e
r
e
f
e
r
e
h
t
s
t
c
e
l
e
s
e
d
,
H
G
I
H
n
e
h
W
.
)
e
l
b
a
n
E
L
L
P
(
L
L
P
s
t
c
e
l
e
s
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
L
T
T
V
L
/
S
O
M
C
V
L
.
)
s
s
a
p
y
B
8
2
2
E
O
t
u
p
n
I
p
u
ll
u
P
.
s
t
u
p
t
u
o
7
Q
n
/
7
Q
:
5
Q
n
/
5
Q
r
o
f
e
l
b
a
n
e
t
u
p
t
u
O
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
L
T
T
V
L
/
S
O
M
C
V
L
1
3
,
0
3
,
T
U
O
_
L
A
T
X
N
I
_
L
A
T
X
t
u
p
n
I
,
t
u
p
t
u
o
e
h
t
s
i
T
U
O
_
L
A
T
X
.
e
c
a
f
r
e
t
n
i
l
a
t
s
y
r
c
t
n
a
n
o
s
e
r
l
e
ll
a
r
a
P
.
t
u
p
n
i
e
h
t
s
i
N
I
_
L
A
T
X
2
3
1
E
O
t
u
p
n
I
p
u
ll
u
P
.
s
t
u
p
t
u
o
4
Q
n
/
4
Q
:
0
Q
n
/
0
Q
r
o
f
e
l
b
a
n
e
t
u
p
t
u
O
.
s
l
e
v
e
l
e
c
a
f
r
e
t
n
i
L
T
T
V
L
/
S
O
M
C
V
L
:
E
T
O
N
p
u
ll
u
P
.
s
e
u
l
a
v
l
a
c
i
p
y
t
r
o
f
,
s
c
i
t
s
i
r
e
t
c
a
r
a
h
C
n
i
P
,
2
e
l
b
a
T
e
e
S
.
s
r
o
t
s
i
s
e
r
t
u
p
n
i
l
a
n
r
e
t
n
i
o
t
s
r
e
f
e
r
844008AYI-15
www.icst.com/products/hiperclocks.html
REV. A FEBRUARY 2, 2006
3
Integrated
Circuit
Systems, Inc.
ICS844008I-15
F
EMTO
C
LOCKS
TM C
RYSTAL
-
TO
-
LVDS F
REQUENCY
S
YNTHESIZER
PRELIMINARY
T
ABLE
4A. P
OWER
S
UPPLY
DC C
HARACTERISTICS
,
V
DD
= 3.3V5%, T
A
= -40C
TO
85C
T
ABLE
4B. LVCMOS / LVTTL DC C
HARACTERISTICS
,
V
DD
= 3.3V5%, T
A
= -40C
TO
85C
A
BSOLUTE
M
AXIMUM
R
ATINGS
Supply Voltage, V
DD
4.6V
Inputs, V
I
-0.5V to V
DD
+ 0.5V
Outputs, I
O
Continuous Current
10mA
Surge Current
15mA
Package Thermal Impedance,
JA
47.9C/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.
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
s
n
o
i
t
i
d
n
o
C
t
s
e
T
m
u
m
i
n
i
M
l
a
c
i
p
y
T
m
u
m
i
x
a
M
s
t
i
n
U
V
H
I
e
g
a
t
l
o
V
h
g
i
H
t
u
p
n
I
V
D
D
V
3
.
3
=
2
V
D
D
3
.
0
+
V
V
L
I
e
g
a
t
l
o
V
w
o
L
t
u
p
n
I
V
D
D
V
3
.
3
=
3
.
0
-
8
.
0
V
I
H
I
t
u
p
n
I
t
n
e
r
r
u
C
h
g
i
H
L
E
S
_
L
L
P
n
,
R
M
V
D
D
V
=
N
I
5
6
4
.
3
=
0
5
1
A
L
E
S
_
F
,
2
E
O
,
1
E
O
V
D
D
V
=
N
I
5
6
4
.
3
=
5
A
I
L
I
t
u
p
n
I
t
n
e
r
r
u
C
w
o
L
L
E
S
_
L
L
P
n
,
R
M
V
D
D
V
,
V
5
6
4
.
3
=
N
I
V
0
=
5
-
A
L
E
S
_
F
,
2
E
O
,
1
E
O
V
D
D
V
,
V
5
6
4
.
3
=
N
I
V
0
=
0
5
1
-
A
T
ABLE
4C. LVDS DC C
HARACTERISTICS
,
V
DD
= 3.3V5%, T
A
= -40C
TO
85C
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
s
n
o
i
t
i
d
n
o
C
t
s
e
T
m
u
m
i
n
i
M
l
a
c
i
p
y
T
m
u
m
i
x
a
M
s
t
i
n
U
V
D
O
e
g
a
t
l
o
V
t
u
p
t
u
O
l
a
i
t
n
e
r
e
f
f
i
D
0
5
3
V
m
V
D
O
V
D
O
e
g
n
a
h
C
e
d
u
t
i
n
g
a
M
0
4
V
m
V
S
O
e
g
a
t
l
o
V
t
e
s
f
f
O
5
2
.
1
V
V
S
O
V
S
O
e
g
n
a
h
C
e
d
u
t
i
n
g
a
M
0
5
V
m
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
s
n
o
i
t
i
d
n
o
C
t
s
e
T
m
u
m
i
n
i
M
l
a
c
i
p
y
T
m
u
m
i
x
a
M
s
t
i
n
U
V
D
D
e
g
a
t
l
o
V
y
l
p
p
u
S
e
r
o
C
5
3
1
.
3
3
.
3
5
6
4
.
3
V
V
A
D
D
e
g
a
t
l
o
V
y
l
p
p
u
S
g
o
l
a
n
A
5
3
1
.
3
3
.
3
5
6
4
.
3
V
I
D
D
t
n
e
r
r
u
C
y
l
p
p
u
S
r
e
w
o
P
2
2
1
A
m
I
A
D
D
t
n
e
r
r
u
C
y
l
p
p
u
S
g
o
l
a
n
A
1
1
A
m
844008AYI-15
www.icst.com/products/hiperclocks.html
REV. A FEBRUARY 2, 2006
4
Integrated
Circuit
Systems, Inc.
ICS844008I-15
F
EMTO
C
LOCKS
TM C
RYSTAL
-
TO
-
LVDS F
REQUENCY
S
YNTHESIZER
PRELIMINARY
T
ABLE
6. AC C
HARACTERISTICS
,
V
DD
= 3.3V5%, T
A
= -40C
TO
85C
T
ABLE
5. C
RYSTAL
C
HARACTERISTICS
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
s
n
o
i
t
i
d
n
o
C
t
s
e
T
m
u
m
i
n
i
M
l
a
c
i
p
y
T
m
u
m
i
x
a
M
s
t
i
n
U
f
T
U
O
y
c
n
e
u
q
e
r
F
t
u
p
t
u
O
0
=
L
E
S
F
5
2
1
z
H
M
1
=
L
E
S
F
0
0
1
z
H
M
t
)
o
(
k
s
2
,
1
E
T
O
N
;
w
e
k
S
t
u
p
t
u
O
D
B
T
0
5
s
p
t
)
c
c
(
t
i
j
r
e
t
t
i
J
e
l
c
y
C
-
o
t
-
e
l
c
y
C
5
2
0
5
s
p
t
)
(
t
i
j
;
)
m
o
d
n
a
R
(
r
e
t
t
i
J
e
s
a
h
P
S
M
R
3
E
T
O
N
)
z
H
M
0
2
-
z
H
M
5
7
8
.
1
(
,
z
H
M
5
2
1
2
4
.
0
1
s
p
)
z
H
M
0
2
-
z
H
M
5
7
8
.
1
(
,
z
H
M
0
0
1
6
4
.
0
1
s
p
t
R
t
/
F
e
m
i
T
l
l
a
F
/
e
s
i
R
t
u
p
t
u
O
%
0
8
o
t
%
0
2
0
0
2
0
3
3
0
5
6
s
p
c
d
o
e
l
c
y
C
y
t
u
D
t
u
p
t
u
O
8
4
0
5
2
5
%
.
s
c
e
p
s
t
e
g
r
a
t
n
g
i
s
e
d
e
r
a
s
e
u
l
a
v
m
u
m
i
x
a
M
d
n
a
m
u
m
i
n
i
M
.
s
n
o
i
t
i
d
n
o
c
d
a
o
l
l
a
u
q
e
h
t
i
w
d
n
a
s
e
g
a
t
l
o
v
y
l
p
p
u
s
e
m
a
s
e
h
t
t
a
s
t
u
p
t
u
o
n
e
e
w
t
e
b
w
e
k
s
s
a
d
e
n
i
f
e
D
:
1
E
T
O
N
V
t
a
d
e
r
u
s
a
e
M
D
D
.
2
/
.
5
6
d
r
a
d
n
a
t
S
C
E
D
E
J
h
t
i
w
e
c
n
a
d
r
o
c
c
a
n
i
d
e
n
i
f
e
d
s
i
r
e
t
e
m
a
r
a
p
s
i
h
T
:
2
E
T
O
N
.
t
o
l
P
e
s
i
o
N
e
s
a
h
P
e
h
t
o
t
r
e
f
e
r
e
s
a
e
l
P
:
3
E
T
O
N
r
e
t
e
m
a
r
a
P
s
n
o
i
t
i
d
n
o
C
t
s
e
T
m
u
m
i
n
i
M
l
a
c
i
p
y
T
m
u
m
i
x
a
M
s
t
i
n
U
n
o
i
t
a
ll
i
c
s
O
f
o
e
d
o
M
l
a
t
n
e
m
a
d
n
u
F
y
c
n
e
u
q
e
r
F
4
.
2
2
5
2
2
.
7
2
z
H
M
1
E
T
O
N
;
)
m
p
p
(
n
o
il
li
M
r
e
p
s
t
r
a
P
0
0
1
m
p
p
)
R
S
E
(
e
c
n
a
t
s
i
s
e
R
s
e
i
r
e
S
t
n
e
l
a
v
i
u
q
E
0
5
e
c
n
a
t
i
c
a
p
a
C
t
n
u
h
S
7
F
p
l
e
v
e
L
e
v
i
r
D
0
0
1
W
.
l
a
t
s
y
r
c
t
n
a
n
o
s
e
r
l
e
ll
a
r
a
p
F
p
8
1
n
a
g
n
i
s
u
d
e
z
i
r
e
t
c
a
r
a
h
C
:
E
T
O
N
.
d
r
a
o
b
C
P
r
e
s
u
r
o
f
d
e
t
s
u
j
d
a
s
p
a
c
m
i
r
t
l
a
n
r
e
t
x
e
d
n
a
l
a
t
s
y
r
c
m
p
p
0
5
d
e
d
n
e
m
m
o
c
e
r
h
t
i
w
d
e
s
u
n
e
h
W
:
1
E
T
O
N
844008AYI-15
www.icst.com/products/hiperclocks.html
REV. A FEBRUARY 2, 2006
5
Integrated
Circuit
Systems, Inc.
ICS844008I-15
F
EMTO
C
LOCKS
TM C
RYSTAL
-
TO
-
LVDS F
REQUENCY
S
YNTHESIZER
PRELIMINARY
T
YPICAL
P
HASE
N
OISE
AT
125MH
Z
A
T
3.3V
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
-190
125MHz
RMS Phase Jitter (Random)
1.875Mhz to 20MHz = 0.42ps (typical)
O
FFSET
F
REQUENCY
(H
Z
)
1k
10k
100k
1M
10M
100M
dBc
Hz
N
OISE
P
OWER
Raw Phase Noise Data
Phase Noise Result by adding
PCI Express Filter to raw data
PCI Express Jitter Filter
PDF 
ZIP