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PDF SL2305 Data sheet ( Hoja de datos )
| Número de pieza | SL2305 | |
| Descripción | Low Jitter and Skew 10 to 140 MHz Zero Delay Buffer | |
| Fabricantes | Silicon Laboratories | |
| Logotipo |  |
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SL2305
Low Jitter and Skew 10 to 140 MHz Zero Delay Buffer (ZDB)
Key Features
• 10 to 140 MHz operating frequency range
• Low output clock jitter:
- 140 ps-max c-c-j at 66 MHz
• Low output-to-output skew: 150 ps-max
• Low product-to-product skew: 400 ps-max
• 3.3 V power supply range
• Low power dissipation:
- 14 mA-max at 66MHz
- 26 mA-max at 133 MHz
• One input drives 5 outputs organized as 4+1
• SpreadThru™ PLL that allows use of SSCG
• Standard and High-Drive options
• Available in 8-pin SOIC and TSSOP packages
• Available in Commercial and Industrial grades
Applications
• Printers and MFPs
• Digital Copiers
• PCs and Work Stations
• DTV
• Routers, Switchers and Servers
• Digital Embeded Systems
Description
The SL2305 is a low skew, low jitter and low power Zero
Delay Buffer (ZDB) designed to produce up to five (5) clock
outputs from one (1) reference input clock for high speed
clock distribution applications. The product has an on-chip
PLL which locks to the input clock at CLKIN and receives its
feedback internally from the CLKOUT pin.
The SL2305 is available with two (2) drive strength versions.
The -1 is the standard-drive version and -1H is the high-
drive version.
The SL2305 high-drive version operates up to 140MHz and
the standard drive version -1 operates up to 100.
The SL2305 enter into Power-Down (PD) mode if the input
at CLKIN is DC (0 to VDD). In this power-down state all five
(5) outputs are tri-stated and the PLL is turned off leading to
less than 12μA-max of power supply current draw.
Benefits
• Up to five (5) distribution of input clock
• Standard and High-Drive levels to control impedance
level, frequency range and EMI
• Low jitter and skew
• Low power dissipation
• Low cost
Block Diagram
CLKIN
PLL
VDD
GND
CLKOUT
CLK1
CLK2
CLK3
CLK4
Rev 2.1, October 22, 2007
400 West Cesar Chavez, Austin, TX 78701
1+(512) 416-8500
1+(512) 416-9669
Page 1 of 11
www.silabs.com
1 page  
SL2305
DC Electrical Specifications: Unless otherwise stated VDD=3.3V+/-10% and both C and I Grades
Symbol
Description
Condition
Min
Max
Unit
VDD
Supply Voltage
3.0 3.6 V
VIL Input LOW Voltage
CLKIN (Pin-1)
– 0.8 V
VIH Input HIGH Voltage
CLKIN (Pin-1)
2.0 VDD+0.3 V
IIL Input LOW Current
CLKIN, 0 < VIN < 0.8V
– 25 µA
IIH Input HIGH Current
CLKIN, VIN = VDD
– 50 µA
VOL Output LOW Voltage
(All outputs)
IOL = 8 mA (standard drive)
IOL = 12 mA (high drive)
– 0.4 V
– 0.4 V
VOH
Output HIGH Voltage
(All outputs)
IOH = –8 mA (standard drive)
IOH = –12 mA (high drive)
2.4 – V
2.4 – V
IDDPD
Power Down Supply Current
CLKIN=0 to VDD
C-Grade, Power-down if CLKIN=0 to
VDD or input is floating
I-Grade, Power-down if CLKIN=0 to
VDD or input is floating
–
–
12 µA
25 µA
IDD1
Power Supply Current
All Outputs CL=0, 33MHz CLKIN
– 8 mA
IDD2
Power Supply Current
All Outputs CL=0, 66MHz CLKIN
– 14 mA
IDD3
Power Supply Current
All Outputs CL=0, 100MHz CLKIN
– 20 mA
IDD4
Power Supply Current
All Outputs CL=0, 133MHz CLKIN
– 26 mA
RPD
Pull-down Resistors
Pins-1/2/3/5/7/8, 250kΩ-typ
175 325 kΩ
Rev 2.1, October 22, 2007
Page 5 of 11
5 Page 
Ordering Information [3]
Ordering Number
SL2305SC-1
SL2305SC-1T
SL2305SI-1
SL2305SI-1T
SL2305SC-1H
SL2305SC-1HT
SL2305SI-1H
SL2305SI-1HT
SL2305ZC-1
SL2305ZC-1T
SL2305ZI-1
SL2305ZI-1T
SL2305ZC-1H
SL2305ZC-1HT
SL2305ZI-1H
SL2305ZI-1HT
Marking
SL2305SC-1
SL2305SC-1
SL2305SI-1
SL2305SI-1
SL2305SC-1H
SL2305SC-1H
SL2305SI-1H
SL2305SI-1H
SL2305ZC-1
SL2305ZC-1
SL2305ZI-1
SL2305ZI-1
SL2305ZC-1H
SL2305ZC-1H
SL2305ZI-1H
SL2305ZI-1H
Notes:
3. The SL2305 products are RoHS compliant.
SL2305
Shipping Package
Tube
Tape and Reel
Tube
Tape and Reel
Tube
Tape and Reel
Tube
Tape and Reel
Tube
Tape and Reel
Tube
Tape and Reel
Tube
Tape and Reel
Tube
Tape and Reel
Package
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin SOIC
8-pin TSSOP
8-pin TSSOP
8-pin TSSOP
8-pin TSSOP
8-pin TSSOP
8-pin TSSOP
8-pin TSSOP
8-pin TSSOP
Temperature
0 to 70°C
0 to 70°C
-40 to 85°C
-40 to 85°C
0 to 70°C
0 to 70°C
-40 to 85°C
-40 to 85°C
0 to 70°C
0 to 70°C
-40 to 85°C
-40 to 85°C
0 to 70°C
0 to 70°C
-40 to 85°C
-40 to 85°C
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 2.1, October 22, 2007
Page 11 of 11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet SL2305.PDF ] | |
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