CY2300
Phase-Aligned Clock Multiplier
Features
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Benefits
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4-multiplier configuration
Single phase-locked loop architecture
Phase Alignment
Low jitter, high accuracy outputs
Output enable pin
3.3V operation
5V Tolerant input
Internal loop filter
8-pin 150-mil SOIC package
Commercial Temperature
1/2x, 1x, 1x, 2x Ref
10 MHz to 166.67 MHz operating range (reference input from
20 MHz to 83.33 MHz)
All outputs have a consistent phase relationship with each other
and the reference input
Meets critical timing requirements
Enables design flexibility and lower power
consumption
Supports industry standard design platforms
Allows flexibility on Reference input
Alleviates the need for external components
Industry standard packaging saves on board space
Suitable for wide spectrum of applications
Logic Block Diagram
FBK
1/2xREF
REFIN
/2
PLL
Divider
Logic
REF
REF
2xREF
OE
Cypress Semiconductor Corporation
Document #: 38-07252 Rev. *C
•
198 Champion Court
•
San Jose
,
CA 95134-1709
•
408-943-2600
Revised September 23, 2008
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CY2300
Pinouts
Figure 1. CY2300 -
8-pin SOIC - Top View
1/2xREF
GND
REFIN
REF
1
2
3
4
8
7
6
5
OE
V
DD
2xREF
REF
Table 1. Pin Definitions
Pin
1
2
3
4
5
6
7
8
GND
REFIN
REF
REF
2xREF
VDD
OE
Signal
[1]
1/2xREF
Clock output, 1/2x Reference
Ground
Input Reference frequency, 5V tolerant input
Clock output Reference
Clock output Reference
Clock output, 2x Reference
3.3V Supply
Output Enable (weak pull up)
Description
Functional Description
The CY2300 is a 4-output 3.3V phase-aligned system clock
designed to distribute high-speed clocks in PC, workstation,
datacom, telecom, and other high-performance applications.
The part allows the user to obtain 1/2x, 1x, 1x and 2x REFIN
output frequencies on respective output pins.
The part has an on-chip PLL which locks to an input clock
presented on the REFIN pin. The input-to-output skew is
guaranteed to be less than
±200
ps, and output-to-output skew
is guaranteed to be less than 200 ps.
Multiple CY2300 devices can accept the same input clock and
distribute it in a system. In this case, the skew between the
outputs of two devices is guaranteed to be less than 400 ps.
The CY2300 is available in commercial temperature range.
Maximum Ratings
Supply Voltage to Ground Potential................–0.5V to +7.0V
DC Input Voltage (Except Ref) .............. –0.5V to V
DD
+ 0.5V
DC Input Voltage REF ........................................... –0.5 to 7V
Storage Temperature ................................. –65°C to +150°C
Junction Temperature ................................................. 150°C
Static Discharge Voltage
(per MIL-STD-883, Method 3015) ............................. >2000V
Operating Conditions
Parameter
V
DD
T
A
C
L
C
IN
t
PU
Supply Voltage
Operating Temperature (Ambient Temperature)
Load Capacitance, Fout < 133.33 MHz
Load Capacitance,133.33 MHz < Fout < 166.67 MHz
Input Capacitance
Power up time for all VDD's to reach minimum specified voltage (power
ramps must be monotonic)
0.05
Description
Min
3.0
0
Max
3.6
70
18
12
7
50
Unit
V
°C
pF
pF
pF
ms
Note
1. Weak pull down on all outputs.
Document #: 38-07252 Rev. *C
Page 2 of 6
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CY2300
Electrical Characteristics
Parameter
V
IL
V
IH
I
IL
I
IH
V
OL
V
OH
I
DD
Input LOW Voltage
Input HIGH Voltage
Input LOW Current
Input HIGH Current
Output LOW Voltage
Supply Current
[2]
Description
Min
2.0
Max
0.8
Unit
V
V
μA
μA
V
V
mA
mA
mA
V
IN
= 0V
V
IN
= V
DD
I
OL
= 8 mA
I
OH
= –8 mA
Unloaded outputs, REFIN = 66 MHz
Unloaded outputs, REFIN = 33 MHz
Unloaded outputs, REFIN = 20 MHz
2.4
100
50
0.4
45
32
18
Output HIGH Voltage
[2]
Switching Characteristics
Parameter
1/t
1
Name
Output Frequency
Duty Cycle
[3]
= t
2
÷
t
1
t
3
t
4
t
5
t
6
t
7
Rise Time
[3]
Fall Time
[3]
Output to Output Skew on
rising edges
[3]
Delay, REFIN Rising Edge to
Output Rising Edge
[3]
Device to Device Skew
[3]
18-pF load
12-pF load
Measured at V
DD
/2
Measured between 0.8V and 2.0V
Measured between 0.8V and 2.0V
All outputs equally loaded
Measured at V
DD
/2
Measured at V
DD
/2 from REFIN to any
output
Measured at V
DD
/2 on the 1/2xREF pin
of
devices (pin 1)
Measured at Fout=133.33 MHz, loaded
outputs, 18-pF load
Stable power supply, valid clocks
presented on REFIN
40
50
Test Conditions
Min
10
Typ.
Max
133.33
166.67
60
1.20
1.20
200
±200
400
Unit
MHz
MHz
%
ns
ns
ps
ps
ps
t
J
t
LOCK
Period Jitter
[3]
PLL Lock Time
[3]
±175
1.0
ps
ms
Switching Waveforms
Figure 2. Duty Cycle Timing
t
1
t
2
V
DD
/2
Notes
2. Parameter is guaranteed by design and characterization. It is not 100% tested in production.
3. All parameters are specified with equally loaded outputs.
Document #: 38-07252 Rev. *C
Page 3 of 6
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CY2300
Switching Waveforms
(continued)
Figure 3. All Outputs Rise/Fall Time
OUTPUT
2.0V
0.8V
t
3
2.0V
0.8V
t
4
3.3V
0V
Figure 4. Output-Output Skew
V
DD
/2
OUTPUT
OUTPUT
t
5
V
DD
/2
Figure 5. Input-Output Propagation Delay
V
DD
/2
REFIN
OUTPUT
t
6
V
DD
/2
Figure 6. Device-Device Skew
V
DD
/2
1/2xREF, Device1
1/2xREF, Device2
t
7
V
DD
/2
Test Circuits
Test Circuit # 1
V
DD
0.1
μF
OUTPUTS
CLK
OUT
C
LOAD
GND
Document #: 38-07252 Rev. *C
Page 4 of 6
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CY2300
Ordering Information
Ordering Code
Pb-Free
CY2300SXC
CY2300SXCT
8-pin 150-mil SOIC
8-pin 150-mil SOIC - Tape and Reel
Commercial
Commercial
Package Type
Operating Range
Package Drawing and Dimensions
Figure 7. 8-Pin (150-Mil) SOIC S8
8 Lead (150 Mil) SOIC - S08
PIN 1 ID
4
1
1. DIMENSIONS IN INCHES[MM] MIN.
MAX.
2. PIN 1 ID IS OPTIONAL,
ROUND ON SINGLE LEADFRAME
RECTANGULAR ON MATRIX LEADFRAME
3. REFERENCE JEDEC MS-012
0.230[5.842]
0.244[6.197]
0.150[3.810]
0.157[3.987]
4. PACKAGE WEIGHT 0.07gms
PART #
S08.15 STANDARD PKG.
5
8
SZ08.15 LEAD FREE PKG.
0.189[4.800]
0.196[4.978]
SEATING PLANE
0.010[0.254]
0.016[0.406]
X 45°
0.061[1.549]
0.068[1.727]
0.004[0.102]
0.050[1.270]
BSC
0.004[0.102]
0.0098[0.249]
0°~8°
0.016[0.406]
0.035[0.889]
0.0075[0.190]
0.0098[0.249]
0.0138[0.350]
0.0192[0.487]
51-85066-*C
Document #: 38-07252 Rev. *C
Page 5 of 6
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