SL23EP09NZ
Not Recommended for New Designs
Low Jitter and Skew DC to 220 MHz Clock Buffer
Key Features
Description
The SL23EP09NZ is a low skew, jitter and power fanout
buffer designed to produce up to nine (9) clock outputs
from one (1) reference input clock, for high speed clock
distribution.
DC to 220 MHz operating frequency range
Low output clock skew: 70ps-typ
Low part-to-part output skew: 100 ps-typ
Low output propogation delay: 3.5ns-typ
3.3V to 2.5V operation supply voltage range
The SL23EP09NZ products operate from DC to 220MHz
and within 3.3V to 2.5V power supply range.
Low power dissipation
- 11 mA-typ at 66MHz at VDD=3.3V
- 10 mA-typ at 66MHz at VDD=2.5V
One input to nine (9) output fanout buffer drivers
Refer to SL2309NZ product for DC to 140MHz-max
frequency range. Also refer to SL2304NZ or SL23EP04NZ
products for 1:4 clock fanout buffers within 3.3V to 2.5V
power supply and DC to 220MHZ frequency range.
Available in 16-pin SOIC package
Available in Commercial and Industrial grades
Available in Lead (Pb) free package
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Applications
General Purpose PCI/PCI-X Clock Buffer
Printers, MFPs and Digital Copiers
PCs and Work Stations
Routers, Switches and Servers
Datacom and Telecom
High-Speed Digital Embeded Systems
Benefits
Up to nine (9) distribution of input clock
Low propogation delay
Low output-to-output skew
Low output clock jitter
Low power dissipation
Block Diagram
CLKIN
OUTPUT1
OUTPUT2
OUTPUT3
OUTPUT4
OUTPUT5
OUTPUT6
OUTPUT7
OUTPUT8
OUTPUT9
VDD(3)
GND(3)
Rev 2.2, May 6, 2008
400 West Cesar Chavez, Austin, TX 78701
Page 1 of 11
1+(512) 416-8500
1+(512) 416-9669
www.silabs.com
SL23EP09NZ
Pin Configuration
1
16
OUTPUT9
OUTPUT1
2
15
OUTPUT8
OUTPUT2
3
14
OUTPUT7
VDD
4
13
VDD
GND
5
12
GND
OUTPUT3
6
11
OUTPUT6
OUTPUT4
7
10
OUTPUT5
VDD
8
9
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CLKIN
GND
16-Pin SOIC
Pin Description
Pin
Number
Pin Name
Pin Type
1
CLKIN
Input
2
OUTPUT1
Output
Buffered Clock Output-1
3
OUTPUT2
Output
Buffered Clock Output-2
4
VDD
Power
3.3V +/-10% Power Supply
5
GND
Power
Power Ground
6
OUTPUT3
Output
Buffered Clock Output-3
7
OUTPUT4
Output
Buffered Clock Output-4
8
VDD
Power
3.3V and 2.5V +/-10% Power Supply
9
GND
Power
Power Ground
10
OUTPUT5
Output
Buffered Clock Output-5
11
OUTPUT6
Output
Buffered Clock Output-6
12
GND
Power
Power Ground
13
VDD
Power
3.3V and 2.5V +/-10% Power Supply
14
OUTPUT7
Output
Buffered Clock Output-7
15
OUTPUT8
Output
Buffered Clock Output-8
16
OUTPUT9
Output
Buffered Clock Output-9
Rev 2.2, May 6, 2008
Pin Description
Input Reference Clock
Page 2 of 11
SL23EP09NZ
General Description
Output Clock Skew
The SL23EP09NZ is a low skew, jitter and power fanout
buffer designed to produce up to nine (9) clock outputs
from one (1) reference input clock, for high speed clock
distribution, including PCI/PCI-X applications.
All outputs should drive the similar load to achieve outputto-output skew specifications as given in the switching
electrical tables.
Power Supply Range (VDD)
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Input and output Frequency Range
The SL23EP09NZ is designed to operate from 3.3V to 2.5V
VDD power supply range. An internal on-chip voltage
regulator is used to provide to constant power supply of
1.8V, leading to a consistent and stable electrical
performance in terms of skew and jitter. The SL23EP09NZ
I/O is powered by using VDD.
The input and output frequency is the same (1x) for
SL2309NZ and the product operates from DC to
220MHz clock range with 15pF and 134MHz with 30pF
output loads at VDD=3.3V.
High Drive Capability
The SL23EP09NZ is designed to meet high drive
requirements for up to 30pF load condition per electrical
specifications tables.
If lower drive levels are required refer to SL2309NZ
fanout buffer product.
Refer to SL2309NZ product for DC to 140MHz-max
frequency range.
Contact SLI for 1.8V power supply Buffers and ZDB
products.
Absolute Maximum Ratings (C-Grade and I-Grade)
Description
Condition
Min
Max
Unit
Supply voltage, VDD
-0.5
4.2
V
All Inputs and Outputs
-0.5
VDD+0.5
V
Ambient Operating Temperature
In operation, C-Grade
0
70
°C
Ambient Operating Temperature
In operation, I-Grade
-40
85
°C
Storage Temperature
No power is applied
-65
150
°C
Junction Temperature
In operation, power is applied
–
125
°C
–
260
°C
Soldering Temperature
ESD Rating (Human Body Model)
JEDEC22-A114D
-4,000
4,000
V
ESD Rating (Charge Device Model)
JEDEC22-C101C
-1,500
1,500
V
ESD Rating (Machine Model)
JEDEC22-A115D
-200
200
V
Rev 2.2, May 6, 2008
Page 3 of 11
SL23EP09NZ
Operating Conditions (C-Grade and I-Grade)
Unless otherwise stated VDD= 3.3V+/- 10%, CL=15pF
Description
Symbol
Operating Voltage
VDD
Condition
VDD+/-10%
Min
Typ
Max
Unit
2.97
3.3
3.63
V
Ambient Temperature
C-Grade
0
–
70
°C
TA2
Ambient Temperature
I-Grade
-40
–
85
°C
VINC
Pin 1
–
5
7
pF
CL1
All outputs ≤ 220MHz, 3.3V
–
–
15
pF
CL2
All outputs ≤ 134MHz, 3.3V
–
–
30
pF
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TA1
Operating Temperature
Input Capacitance
Load Capacitance
Operating Frequency
CLKIN
Input Clock Range, CL=15pF
DC
–
220
MHz
Operating Frequency
CLKIN
Input Clock Range, CL=30pF
DC
–
134
MHz
DC Electrical Characteristics (C-Grade)
Unless otherwise stated VDD= 3.3V+/- 10%, CL=15pF and Ambient Temperature range 0 to +70°C
Description
Symbol
Condition
Min
Typ
Max
Unit
Input LOW Voltage
VINL
CLKIN
–
–
0.8
V
Input HIGH Voltage
VINH
CLKIN
2.0
–
VDD+0.3
V
Input LOW Current
IINL
0 < VIN < 0.8V
–
–
10
µA
Input HIGH Current
IINH
2.4V < VIN < VDD
–
–
15
µA
Output Low Voltage
VOL
IOL=12mA
–
–
0.4
V
Output High Voltage
VOH
IOH=-12mA
2.4
–
–
V
Power Supply Current
IDD1
CLKIN=33.3MHz, CL=0
–
9
13
mA
Power Supply Current
IDD2
CLKIN=66.6MHz, CL=0
–
11
16
mA
Power Supply Current
IDD3
CLKIN=166MHz, CL=0
–
15
20
mA
Switching Electrical Characteristics (C-Grade)
Unless otherwise stated VDD= 3.3V+/- 10%, CL=15pF and Ambient Temperature range 0 to +70°C
Description
Output Frequency Range
Symbol
Condition
Min
Typ
Max
Unit
FOUT1
CL=15pf
0
–
220
MHz
FOUT2
CL=30pf
0
–
134
MHz
Input Duty Cycle
DC1
Measured at VDD/2
20
50
80
%
Output Duty Cycle
DC2
CL=15pF, Fout=166MHz
Measured at VDD/2
45
50
55
%
Output Duty Cycle
DC3
CL=30pF, Fout=100MHz
Measured at VDD/2
40
50
60
%
Output Rise/Fall Time
tr/f-1
Measured at 0.8V to 2.0V
–
–
1.2
ns
Rev 2.2, May 6, 2008
Page 4 of 11
SL23EP09NZ
CL=15pF
Output Rise/Fall Time
SKW1
Measured at 0.8V to 2.0V
CL=30pF
–
–
1.6
ns
Measured at VDD/2 and
Outputs are equally loaded
–
70
150
ps
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Output Skew
tr/f-2
Part to Part Skew
Measured at VDD/2 and
Outputs are equally loaded
SKW2
–
100
200
ps
2.5
3.5
4.5
ns
Propagation Delay Time
PDT
Measured at VDD/2 from CLKIN to
Output Clock rising edge and Outputs
are equally loaded
Cycle-to-Cycle Jitter
CCJ1
CLKIN=66MHz and CL=0 (No Load)
–
35
70
ps
Cycle-to-Cycle Jitter
CCJ2
CLKIN=166MHz and CL=0 (No Load)
–
25
50
ps
DC Electrical Characteristics (I-Grade)
Unless otherwise stated VDD= 3.3V+/- 10%, CL=15pF and Ambient Temperature range -40 to +85°C
Description
Symbol
Condition
Min
Typ
Max
Unit
Input LOW Voltage
VINL
CLKIN
–
–
0.8
V
Input HIGH Voltage
VINH
CLKIN
2.0
–
VDD+0.3
V
Input LOW Current
IINL
0 < VIN < 0.8V
–
–
10
µA
Input HIGH Current
IINH
2.4V < VIN < VDD
–
–
15
µA
Output Low Voltage
VOL
IOL=12mA
–
–
0.4
V
Output High Voltage
VOH
IOH=-12mA
2.4
–
–
V
Power Supply Current
IDD1
CLKIN=33.3MHz, CL=0
–
10
14
mA
Power Supply Current
IDD2
CLKIN=66.6MHz, CL=0
–
12
17
mA
Power Supply Current
IDD3
CLKIN=133.3MHz, CL=0
–
16
21
mA
Switching Electrical Characteristics (I-Grade)
Unless otherwise stated VDD= 3.3V+/- 10%, CL=15pF and Ambient Temperature range -40 to +85°C
Description
Output Frequency Range
Symbol
Condition
Min
Typ
Max
Unit
FOUT1
CL=15pf
0
–
220
MHz
FOUT2
CL=30pf
0
–
134
MHz
Input Duty Cycle
DC1
Measured at VDD/2
20
50
80
%
Output Duty Cycle
DC2
CL=15pF, Fout=166MHz
Measured at VDD/2
45
50
55
%
Output Duty Cycle
DC3
CL=30pF, Fout=100MHz
Measured at VDD/2
40
50
60
%
Output Rise/Fall Time
tr/f-1
Measured at 0.8V to 2.0V, CL=15pF
–
–
1.4
ns
Output Rise/Fall Time
tr/f-2
Measured at 0.8V to 2.0V, CL=30pF
–
–
1.8
ns
Rev 2.2, May 6, 2008
Page 5 of 11
SL23EP09NZ
Output Skew
SKW1
Measured at VDD/2 and
Outputs are equally loaded
–
80
160
ps
Part to Part Skew
SKW2
Measured at VDD/2 and
Outputs are equally loaded
–
110
220
ps
2.0
3.5
4.8
ns
PDT
Measured at VDD/2 from CLKIN to
Output Clock rising edge and Outputs
are equally loaded
Cycle-to-Cycle Jitter
CCJ1
CLKIN=66MHz and CL=0 (No Load)
–
40
80
ps
Cycle-to-Cycle Jitter
CCJ2
CLKIN=133MHz and CL=0 (No Load)
–
30
60
ps
Min
Typ
Max
Unit
2.25
2.5
2.75
V
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Propagation Delay Time
Operating Conditions (C-Grade and I-Grade)
Unless otherwise stated VDD= 2.5V+/- 10%, CL=15pF
Description
Operating Voltage
Symbol
VDD
VDD+/-10%
TA1
Ambient Temperature
C-Grade
0
–
70
°C
TA2
Ambient Temperature
I-Grade
-40
–
85
°C
VINC
Pin 1
–
5
7
pF
CL1
All outputs ≤180MHz
–
–
15
pF
CL2
All outputs ≤100MHz
–
–
30
pF
Operating Temperature
Input Capacitance
Load Capacitance
Condition
Operating Frequency
CLKIN-1
Input Clock Range, CL=15pF
DC
–
180
MHz
Operating Frequency
CLKIN-2
Input Clock Range, CL=30pF
DC
–
80
MHz
DC Electrical Characteristics (C-Grade)
Unless otherwise stated VDD= 2.5V+/- 10%, CL=15pF and Ambient Temperature range 0 to +70°C
Description
Symbol
Condition
Min
Typ
Max
Unit
Input LOW Voltage
VINL
CLKIN
–
–
0.7
V
Input HIGH Voltage
VINH
CLKIN
1.7
–
VDD+0.3
V
Input LOW Current
IINL
0 < VIN < 0.8V
–
–
15
µA
Input HIGH Current
IINH
2.4V < VIN < VDD
–
–
25
µA
Output Low Voltage
VOL
IOL=8mA
–
–
0.4
V
Output High Voltage
VOH
IOH=-8mA
VDD-0.6
–
–
V
Power Supply Current
IDD1
CLKIN=33.3MHz, CL=0
–
9
14
mA
Power Supply Current
IDD2
CLKIN=66MHz, CL=0
–
11
17
mA
Power Supply Current
IDD3
CLKIN=166MHz, CL=0
–
15
21
mA
Rev 2.2, May 6, 2008
Page 6 of 11
SL23EP09NZ
Switching Electrical Characteristics (C-Grade)
Unless otherwise stated VDD= 2.5V+/- 10%, CL=15pF and Ambient Temperature range 0 to +70°C
Description
Condition
Min
Typ
Max
Unit
FOUT1
CL=15pf
0
–
180
MHz
FOUT2
CL=30pf
0
–
80
MHz
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Output Frequency Range
Symbol
Input Duty Cycle
DC1
Measured at VDD/2
20
50
80
%
Output Duty Cycle
DC2
CL=15pF, Fout=166MHz
Measured at VDD/2
45
50
55
%
Output Duty Cycle
DC3
CL=30pF, Fout=80MHz
Measured at VDD/2
40
50
60
%
Output Rise/Fall Time
tr/f-1
Measured at 0.6V to 1.8V
CL=15pF
–
–
1.6
ns
Output Rise/Fall Time
tr/f-2
Measured at 0.6V to 1.8V
CL=30pF
–
–
2.0
ns
Output Skew
SKW1
Measured at VDD/2 and
Outputs are equally loaded
–
90
180
ps
Part to Part Skew
SKW2
Measured at VDD/2 and
Outputs are equally loaded
–
120
240
ps
3.0
4.0
5.0
ns
Propagation Delay Time
PDT
Measured at VDD/2 from CLKIN to
Output Clock rising edge and Outputs
are equally loaded
Cycle-to-Cycle Jitter
CCJ1
CLKIN=66MHz and CL=0 (No Load)
–
50
100
ps
Cycle-to-Cycle Jitter
CCJ2
CLKIN=166MHz and CL=0 (No Load)
–
35
70
ps
DC Electrical Characteristics (I-Grade)
Unless otherwise stated VDD= 2.5V+/- 10%, CL=15pF and Ambient Temperature range -40 to +85°C
Description
Symbol
Condition
Min
Typ
Max
Unit
Input LOW Voltage
VINL
CLKIN
–
–
0.7
V
Input HIGH Voltage
VINH
CLKIN
1.7
–
VDD+0.3
V
Input LOW Current
IINL
0 < VIN < 0.8V
–
–
15
µA
Input HIGH Current
IINH
2.4V < VIN < VDD
–
–
25
µA
Output Low Voltage
VOL
IOL=8mA
–
–
0.4
V
Output High Voltage
VOH
IOH=-8mA
VDD-0.6
–
–
V
Power Supply Current
IDD1
CLKIN=33.3MHz, CL=0
–
10
14
mA
Power Supply Current
IDD2
CLKIN=66.6MHz, CL=0
–
12
17
mA
Power Supply Current
IDD3
CLKIN=133.3MHz, CL=0
–
16
23
mA
Rev 2.2, May 6, 2008
Page 7 of 11
SL23EP09NZ
Switching Electrical Characteristics (I-Grade)
Unless otherwise stated VDD= 2.5V+/- 10%, CL=15pF and Ambient Temperature range -40 to +85°C
Description
Condition
Min
Typ
Max
Unit
FOUT1
CL=15pf
0
–
180
MHz
FOUT2
CL=30pf
0
–
80
MHz
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Output Frequency Range
Symbol
Input Duty Cycle
DC1
Measured at VDD/2
20
50
80
%
Output Duty Cycle
DC2
CL=15pF, Fout=166MHz
Measured at VDD/2
45
50
55
%
Output Duty Cycle
DC3
CL=30pF, Fout=100MHz
Measured at VDD/2
40
50
60
%
Output Rise/Fall Time
tr/f-1
Measured at 0.8V to 2.0V
CL=15pF
–
–
1.8
ns
Output Rise/Fall Time
tr/f-2
Measured at 0.8V to 2.0V
CL=30pF
–
–
2.2
ns
Output Skew
SKW1
Measured at VDD/2 and
Outputs are equally loaded
–
100
200
ps
Part to Part Skew
SKW2
Measured at VDD/2 and
Outputs are equally loaded
–
140
280
ps
2.5
4.0
5.5
ns
Propagation Delay Time
PDT
Measured at VDD/2 from CLKIN to
Output Clock rising edge and Outputs
are equally loaded
Cycle-to-Cycle Jitter
CCJ1
CLKIN=66MHz and CL=0 (No Load)
–
60
120
ps
Cycle-to-Cycle Jitter
CCJ2
CLKIN=133MHz and CL=0 (No Load)
–
50
100
ps
Rev 2.2, May 6, 2008
Page 8 of 11
SL23EP09NZ
External Components & Design Considerations
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Typical Application Schematic
BUF_IN
1
OUTPUT1
2
CL
3
SL23EP09NZ
VDD
OUTPUT2
CL
4,8,13
0.1μF
5,9,12
16
OUTPUT9
CL
GND
Comments and Recommendations
Decoupling Capacitor: A decoupling capacitor of 0.1μF must be used between all VDD and VSS pins. Place the
capacitor on the component side of the PCB as close to the VDD pin as possible. The PCB trace to the VDD pin and
to the GND via should be kept as short as possible. Do not use vias between the decoupling capacitor and the VDD
pin.
Series Termination Resistor: A series termination resistor is recommended if the distance between the output
clocks and the load is over 1 ½ inch. Place the series termination resistors as close to the clock outputs as possible.
Rev 2.2, May 6, 2008
Page 9 of 11
SL23EP09NZ
Package Outline and Package Dimensions
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16-Lead SOIC (150-Mil)
16
9
Dimensions are in inches (milimeters).
Top line: (MIN) and Bottom line: (Max)
0.150(3.810)
0.157(3.987)
Pin-1 ID
0.230(5.842)
0.244(6.197)
1
8
0.386(9.804)
0.393(9.982)
0.010(0.2540)
X 45°
0.016(0.406)
0.0075(0.190)
0.0098(0.249)
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)
Seating plane
0.016(0.406)
0.035(0.889)
0° to 8°
0.0138(0.350)
0.0192(0.487)
Thermal Characteristics
Parameter
Thermal Resistance
Junction to Ambient
Thermal Resistance
Junction to Case
Rev 2.2, May 6, 2008
Symbol
Condition
Min
Typ
Max
Unit
θ JA
Still air
-
78
-
°C/W
θ JA
1m/s air flow
-
74
-
°C/W
θ JA
3m/s air flow
-
70
-
°C/W
θ JC
Independent of air flow
-
44
-
°C/W
Page 10 of 11
SL23EP09NZ
Ordering Information [1]
Marking
Shipping
Package
Package
Temperature
SL23EP09NZSC-1H
SL23EP09NZSC-1H
Tube
16-pin SOIC
0 to 70°C
SL23EP09NZSC-1HT
SL23EP09NZSC-1H
Tape and Reel
16-pin SOIC
0 to 70°C
SL23EP09NZSI-1H
SL23EP09NZSI-1H
Tube
16-pin SOIC
-40 to 85°C
SL23EP09NZSI-1HT
SL23EP09NZSI-1H
Tape and Reel
16-pin SOIC
-40 to 85°C
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Ordering Number
Notes:
1. The SL23EP09NZ products are RoHS compliant.
The information in this document is believed to be accurate in all respects at the time of publication but is subject to change without
notice. Silicon Laboratories assumes no responsibility for errors and omissions, and disclaims responsibility for any consequences
resulting from the use of information included herein. Additionally, Silicon Laboratories assumes no responsibility for the functioning
of undescribed features or parameters. Silicon Laboratories reserves the right to make changes without further notice. Silicon
Laboratories makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor
does Silicon Laboratories assume any liability arising out of the application or use of any product or circuit, and specifically disclaims
any and all liability, including without limitation consequential or incidental damages. Silicon Laboratories products are not designed,
intended, or authorized for use in applications intended to support or sustain life, or for any other application in which the failure of
the Silicon Laboratories product could create a situation where personal injury or death may occur. Should Buyer purchase or use
Silicon Laboratories products for any such unintended or unauthorized application, Buyer shall indemnify and hold Silicon
Laboratories harmless against all claims and damages.
Rev 2.2, May 6, 2008
Page 11 of 11
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ClockBuilder Pro
One-click access to Timing tools,
documentation, software, source
code libraries & more. Available for
Windows and iOS (CBGo only).
www.silabs.com/CBPro
Timing Portfolio
www.silabs.com/timing
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Quality
Support and Community
www.silabs.com/CBPro
www.silabs.com/quality
community.silabs.com
Disclaimer
Silicon Laboratories intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using
or intending to use the Silicon Laboratories products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and
"Typical" parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Laboratories reserves the right to
make changes without further notice and limitation to product information, specifications, and descriptions herein, and does not give warranties as to the accuracy or completeness of the
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