Integrated
Circuit
Systems, Inc.
ICS843-106
106.25MH
Z
, LVCMOS, LVPECL
D
UAL
O
UTPUT
O
SCILLATOR
F
EATURES
•
One LVCMOS/LVTTL output, 15Ω output impedance
One LVPECL output pair
•
Crystal oscillator interface designed for 25MHz,
18pF parallel resonant crystal
•
Output frequency: 106.25MHz
•
Random jitter: 3ps (typical)
•
Deterministic jitter: 0.24ps (typical)
•
3.3V operating supply
•
0°C to 70°C ambient operating temperature
•
Available in both standard and lead-free RoHS-compliant
packages
G
ENERAL
D
ESCRIPTION
The ICS843-106 is a Fibre Channel Dual
Output Oscillator and a member of the
HiPerClockS™
HiPerClocks
TM
family of high perfor mance
devices from ICS. The ICS843-106 uses a
25MHz crystal to synthesize 106.25MHz.
The ICS843-106 has excellent jitter performance. The
ICS843-106 is packaged in a small 8-pin TSSOP,
making it ideal for use in systems with limited board space.
IC
S
B
LOCK
D
IAGRAM
LVCMOS
106.25MHz
25MHz
P
IN
A
SSIGNMENT
Q0
V
CC
XTAL_IN
XTAL_OUT
V
EE
1
2
3
4
8
7
6
5
Q1
nQ1
V
CCO
Q0
XTAL_IN
Clock
Synthesizer
LVPECL
106.25MHz
XTAL_OUT
Q1
nQ1
ICS843-106
8-Lead TSSOP
4.40mm x 3.0mm x 0.925mm
package body
G Package
Top View
ICS843-106
8-Lead SOIC
3.90mm x 4.92mm x 1.37mm body package
M Package
Top View
843AG-106
www.icst.com/products/hiperclocks.html
1
REV. A JANUARY 10, 2006
Integrated
Circuit
Systems, Inc.
ICS843-106
106.25MH
Z
, LVCMOS, LVPECL
D
UAL
O
UTPUT
O
SCILLATOR
Type
Power
Input
Power
Description
Positive supply pin.
Crystal oscillator interface. XTAL_IN is the input,
XTAL_OUT is the output.
Negative supply pin.
Single-ended clock output. LVCMOS/LVTTL interface levels.
15
Ω
output impedance.
Output supply pin.
Differential LVPECL output pair.
T
ABLE
1. P
IN
D
ESCRIPTIONS
Number
1
2, 3
4
5
6
7, 8
Name
V
CC
XTAL_IN,
XTAL_OUT
V
EE
Q0
V
CCO
nQ1, Q1
Output
Power
Output
T
ABLE
2. P
IN
C
HARACTERISTICS
Symbol
C
IN
R
OUT
Parameter
Input Capacitance
Output Impedance
Q0
Test Conditions
Minimum
Typical
4
15
Maximum
Units
pF
Ω
843AG-106
www.icst.com/products/hiperclocks.html
2
REV. A JANUARY 10, 2006
Integrated
Circuit
Systems, Inc.
ICS843-106
106.25MH
Z
, LVCMOS, LVPECL
D
UAL
O
UTPUT
O
SCILLATOR
4.6V
-0.5V to V
CC
+ 0.5 V
-0.5V to V
CCO
+ 0.5V
50mA
100mA
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.
A
BSOLUTE
M
AXIMUM
R
ATINGS
Supply Voltage, V
CC
Inputs, V
I
Outputs, V
O
(LVCMOS)
Outputs, I
O
(LVPECL)
Continuous Current
Surge Current
Package Thermal Impedance,
θ
JA
8 Lead TSSOP
8 Lead SOIC
Storage Temperature, T
STG
101.7°C/W (0 mps)
112.7°C/W (0 lfpm)
-65°C to 150°C
T
ABLE
3A. P
OWER
S
UPPLY
DC C
HARACTERISTICS
,
V
CC
= V
CCO
= 3.3V±0.3V, T
A
= 0°C
TO
70°C
Symbol
V
CC
V
CCO
I
EE
I
CC
I
CCO
Parameter
Positive Supply Voltage
Output Supply Voltage
Power Supply Current
Power Supply Current
Output Supply Current
Test Conditions
Minimum
3.0
3.0
Typical
3.3
3.3
Maximum
3.6
3.6
116
96
24
Units
V
V
mA
mA
mA
T
ABLE
3B. LVCMOS/LVTTL DC C
HARACTERISTICS
,
V
CC
= V
CCO
= 3.3V±0.3V, T
A
= 0°C
TO
70°C
Symbol
V
OH
Parameter
Output High Voltage; NOTE 1
Test Conditions
Minimum
2.6
0.5
Typical
Maximum
Units
V
V
Output Low Voltage; NOTE 1
V
OL
NOTE 1: Outputs terminated with 50
Ω
to V
CCO
/2. See Parameter Measurement Information Section,
"3.3V Output Load Test Circuit".
T
ABLE
3C. LVPECL DC C
HARACTERISTICS
,
V
CC
= V
CCO
= 3.3V±0.3V, T
A
= 0°C
TO
70°C
Symbol
V
OH
V
OL
V
SWING
Parameter
Output High Voltage; NOTE 1
Output Low Voltage; NOTE 1
Peak-to-Peak Output Voltage Swing
Test Conditions
Minimum
V
CCO
- 1.4
V
CCO
- 2.0
0.6
Typical
Maximum
V
CCO
- 0.9
V
CCO
- 1.7
1.0
Units
V
V
V
NOTE 1: Outputs terminated with 50
Ω
to V
CCO
- 2V.
843AG-106
www.icst.com/products/hiperclocks.html
3
REV. A JANUARY 10, 2006
Integrated
Circuit
Systems, Inc.
ICS843-106
106.25MH
Z
, LVCMOS, LVPECL
D
UAL
O
UTPUT
O
SCILLATOR
Test Conditions
Minimum
Typical
Fundamental
25
±30
±30
18
±15
1
MHz
ppm
ppm
pF
ppm
mW
Maximum
Units
T
ABLE
4. C
RYSTAL
C
HARACTERISTICS
(NOTE 1)
Parameter
Mode of Oscillation
Frequency
Frequency Tolerance
Frequency Stability Over Operating
Temperature Range
Load Capacitance (C
L
); NOTE 2
Aging for 10 Years
Drive Level
NOTE 1: Using an HC49/US SMD package, the parameters shown above target ±100ppm accuracy.
NOTE 2: See
Cr ystal Input Interface
in the Application Information Section.
T
ABLE
5. AC C
HARACTERISTICS
,
V
CC
= V
CCO
= 3.3V±0.3V, T
A
= 0°C
TO
70°C
Symbol
f
OUT
t
DJ
t
RJ
t
RMS
t
p-p
t
OSC
t
R
/ t
F
Parameter
Output Frequency
Deterministic Jitter ; NOTE 1
Random Jitter ; NOTE 1
RMS of Total Distribution (
σ
);
NOTE 2
Peak-to-Peak Jitter ; NOTE 1
Oscillation Star t Up Time
Output
Rise/Fall Time
Q0
Q1/nQ1
20% to 80%
100
250
Test Conditions
Minimum
Typical
106.25
0.24
3
3.12
24
10
500
800
52
Maximum
Units
MHz
ps
ps
ps
ps
ms
ps
ps
%
odc
Output Duty Cycle
48
NOTE 1: Measured using Wavecrest SIA-3000.
NOTE 2: Measured using Wavecrest SIA-3000, Tj @ 10e-12BER result divided by 14.
843AG-106
www.icst.com/products/hiperclocks.html
4
REV. A JANUARY 10, 2006
Integrated
Circuit
Systems, Inc.
ICS843-106
106.25MH
Z
, LVCMOS, LVPECL
D
UAL
O
UTPUT
O
SCILLATOR
P
ARAMETER
M
EASUREMENT
I
NFORMATION
1.65V ± 0.15V
2V
V
CC,
V
CCO
SCOPE
Qx
V
CC,
V
CCO
Qx
SCOPE
LVCMOS
GND
LVPECL
nQx
V
EE
-1.65V ± 0.15V
-1.3V ± 0.3V
3.3V LVCMOS O
UTPUT
L
OAD
AC T
EST
C
IRCUIT
3.3V LVPECL O
UTPUT
L
OAD
AC T
EST
C
IRCUIT
V
CC
nQ1
Q1
t
PW
t
PERIOD
Q0
t
PW
t
2
PERIOD
odc =
t
PW
t
PERIOD
x 100%
odc =
t
PW
t
PERIOD
x 100%
LVCMOS O
UTPUT
D
UTY
C
YCLE
/P
ULSE
W
IDTH
/P
ERIOD
LVPECL O
UTPUT
D
UTY
C
YCLE
/P
ULSE
W
IDTH
/P
ERIOD
80%
20%
t
R
80%
20%
t
F
80%
Clock
Outputs
80%
V
SW I N G
Clock
Outputs
20%
t
R
t
F
20%
LVCMOS O
UTPUT
R
ISE
/F
ALL
T
IME
843AG-106
LVPECL O
UTPUT
R
ISE
/F
ALL
T
IME
www.icst.com/products/hiperclocks.html
5
REV. A JANUARY 10, 2006
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