CY26580
PacketClock™
Network Applications Clock
Features
Benefits
■
Integrated phase-locked loop (PLL)
■
Internal PLL with precision operation
■
Low-jitter, high-accuracy outputs
■
Meets critical timing requirements in complex system designs
■
3.3V operation
■
Enables application compatibility
Table 1. Frequency Table
Part Number
Outputs
Input Frequency
Output Frequencies
CY26580-1
2
125MHz or 25-MHz driven
100 MHz, 133.33 MHz
Logic Block Diagram
CLK
Φ
Q
OSC.
VCO
OUTPUT
MULTIPLEXER
AND
DIVIDERS
P
133.33 MHz
100 MHz
PLL
SEL_25
SEL_CLK
VDD
VDD
GND
GND
Table 2. Input Select Options
SEL_25
SEL_CLK
X
0
Input Type
0
1
Driven
125
1
1
Driven
25
Cypress Semiconductor Corporation
Document #: 38-07536 Rev. *C
Input Frequency
CLK1
CLK2
Unit
133.33
100
MHz
133.33
100
MHz
Do not use
•
198 Champion Court
•
San Jose, CA 95134-1709
•
408-943-2600
Revised May 22, 2008
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CY26580
Pin Configuration
Figure 1. CY26580 20-pin SSOP (QSOP)
NC
1
20
NC
NC
2
19
SEL_CLK
NC
100 MHz
CLK
3
18
VDD
4
17
NC
GND
5
16
VDD
6
15
NC
NC
7
NC
8
14
13
GND
NC
NC
9
10
12
NC
11
SEL_25
133 MHz
Table 3. Pin Definition
Pin Name
Pin Number
Pin Description
NC
1
No Connect
NC
2
No Connect
CLK
3
Reference Input
VDD
4
Voltage Supply
NC
5
No Connect
GND
6
Ground
NC
7
No Connect
NC
8
No Connect
NC
9
No Connect
133 MHz
10
133.33-MHz Clock Output
SEL_25
11
Reference Frequency Select Input; 0 = 125 MHz, 1 = 25 MHz, weak internal pull up
NC
12
No Connect
NC
13
No Connect
GND
14
Ground
NC
15
No Connect
VDD
16
Voltage Supply
100 MHz
17
100-MHz Clock Output
NC
18
No Connect
SEL_CLK
19
Reference Select Input; Set to 1 = Driven, weak internal pull up
NC
20
No Connect
Document #: 38-07536 Rev. *C
Page 2 of 6
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CY26580
Absolute Maximum Conditions[1]
Junction Temperature ................................ –40°C to +125°C
Data Retention at Tj = 125°C ................................> 10 years
Supply Voltage (VDD)........................................ –0.5 to +7.0V
Package Power Dissipation...................................... 350 mW
DC Input Voltage ....................................... –0.5V to VDD+0.5
ESD (Human Body Model) MIL-STD-883.................... 2000V
Storage Temperature (Non-condensing) .... –55°C to +125°C
Recommended Operating Conditions
Parameter
Description
Min
Typ.
Max
Unit
V
VDD
Supply Voltage
3.14
3.3
3.47
TA, I-grade
Ambient Temperature, Industrial
–40
–
85
°C
CLOAD
Max. Load Capacitance
–
–
15
pF
fREF
Reference Frequency
–
125, 25
–
MHz
Min
Typ.
Max
Unit
DC Electrical Specifications
Parameter[2]
Description
Conditions
IOH
Output High Current
VOH = VDD – 0.5, VDD = 3.3V
12
24
–
mA
IOL
Output Low Current
VOL = 0.5, VDD = 3.3V
12
24
–
mA
IIH
Input High Current
VIH = VDD
–
5
10
μA
IIL
Input Low Current
VIL = 0V
–
–
50
μA
VIH
Input High Voltage
CMOS levels, 70% of VDD
0.7
–
–
VDD
VIL
Input Low Voltage
CMOS levels, 30% of VDD
–
–
0.3
VDD
IDD
Supply Current
VDD Current, no load
–
35
50
mA
RUP
Pull up resistor on Inputs
VDD = 3.14 to 3.47V, measured VIN = 0V
–
100
150
kΩ
Min
Typ.
Max
Unit
0
ppm
AC Electrical Specifications
Parameter[2]
Description
Conditions
Ferror
Frequency Error
All clocks
DC
Output Duty Cycle
Duty Cycle is defined in Figure 3, 50% of VDD
45
50
55
%
ER
Rising Edge Rate
Output Clock Edge Rate, Measured from 20% to
80% of VDD, CLOAD = 15 pF. See Figure 4.
0.8
1.4
2
V/ns
EF
Falling Edge Rate
Output Clock Edge Rate, Measured from 80% to
20% of VDD, CLOAD = 15 pF. See Figure 4.
0.8
1.4
2
V/ns
t9
Clock Jitter
CLK1, CLK2 Peak-Peak period jitter
–
100
–
ps
t10
PLL Lock Time
–
–
3
ms
Figure 2. Test and Measurement Setup
VDDs
0.1 μF
DUT
Outputs
CLOAD
GND
Notes
1. Above which the useful life may be impaired. For user guidelines, not tested.
2. Guaranteed by characterization, not 100% tested.
Document #: 38-07536 Rev. *C
Page 3 of 6
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CY26580
Voltage and Timing Definitions
Figure 3. Duty Cycle Definition
t1
t2
VDD
50% of VDD
Clock
Output
0V
Figure 4. ER = (0.6 x VDD) /t3, EF = (0.6 x VDD) /t4
t3
t4
V
DD
80% of V DD
Clock
Output
20% of VDD
0V
Ordering Information
Ordering Code[3]
Package Type
Temperature Range
Operating Voltage
CY26580OI–2[4]
20-pin SSOP (QSOP)
Industrial
3.3V
CY26580OI–2T[4]
20-pin SSOP (QSOP) – Tape and Reel
Industrial
3.3V
CY26580KOI–2
20-pin SSOP (QSOP)
Industrial
3.3V
CY26580KOI–2T
20-pin SSOP (QSOP) – Tape and Reel
Industrial
3.3V
CY26580KQXI–2
20-pin SSOP (QSOP)
Industrial
3.3V
CY26580KQXI–2T
20-pin SSOP (QSOP) – Tape and Reel
Industrial
3.3V
Pb-Free
Notes
3. Part numbers ending in -1 and -1T have been replaced by part numbers ending in -2 and -2T. Specifications for -1, -1T, -2 and -2T part numbers are identical.
4. Not recommended for new designs.
Document #: 38-07536 Rev. *C
Page 4 of 6
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CY26580
Package Drawing and Dimensions
Figure 5. 20-lead QSOP O201 and SQ201
51-85054-*B
Document #: 38-07536 Rev. *C
Page 5 of 6
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CY26580
Document History Page
Document Title: CY26580 PacketClock™ Network Applications Clock
Document #: 38-07536 Rev. *C
REV.
ECN NO.
Submission
Date
Orig. of
Change
**
127357
06/17/03
RGL
*A
128564
09/12/03
IJA
Change pin 1 to NC and pin 3 to CLK
*B
216828
See ECN
RGL
Removed Preliminary
*C
2442066
See ECN
Description of Change
New Data Sheet
KVM/AESA Updated template. Added Note “Not recommended for new designs.” Added
Note explaining “-1” and “-2” part numbers.
Removed part numbers CY26580OI-1 and CY26580OI-1T.
Added part number CY26580OI–2T, CY26580KOI–2, CY26580KOI–2T,
CY26580KQXI–2, and CY26580KQXI–2T in ordering information table.
Updated figure caption for package drawing.
Sales, Solutions, and Legal Information
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© Cypress Semiconductor Corporation, 2008. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any
circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical,
life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as critical
components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems
application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.
Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign),
United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of,
and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress
integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without
the express written permission of Cypress.
Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not
assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where
a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer
assumes all risk of such use and in doing so indemnifies Cypress against all charges.
Use may be limited by and subject to the applicable Cypress software license agreement.
Document #: 38-07536 Rev. *C
Revised May 22, 2008
Page 6 of 6
PacketClock is a trademark of Cypress Semiconductor. All product and company names mentioned in this document may be the trademarks of their respective holders.
All products and company names mentioned in this document may be the trademarks of their respective holders.
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