ICS411LF Integrated Circuit System, ICS411LF Datasheet

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ICS411LF

Manufacturer Part Number
ICS411LF
Description
PC Peripheral Clock
Manufacturer
Integrated Circuit System
Datasheet
MDS 411 C
Description
The ICS411 is a cost-effective clock synthesizer
developed to optimize component count for PC
motherboard and peripheral applications. The device
supports a common, low cost 14.31818 MHz crystal.
The device locks all output frequencies to enhance
system performance. By supporting common PC
peripheral interface frequencies including 25 MHz for
Ethernet and 24.576 MHz for audio and other
applications, the device lowers chip count enhancing
system cost and reliability.
The ICS411 utilizes a low pin count 8-pin SOIC
package to optimize board space.
ICS is a leader in low jitter and power consumer
application clock sources. These devices are capable
of supporting CCD, video, audio, USB, CPU, and other
peripherals.
Block Diagram
In te grated Circui t Systems
1 4 .3 1 8 1 8 M H z
l
IC L K
5 25 Race Stre et, San Jose, CA 9 5126
1
Features
V D D
Low operating voltage of 3.3 V
Accepts 14.31818 MHz clock input to lower jitter
Fixed dual 25 MHz clocks for Ethernet
Fixed 24.576 MHz clock
Power consumption of 15 mA (typ) extends battery
life
Duty cycle of 45 to 55% (24.576M)
Packaged in 8-pin SOIC
Available in Pb (lead) free package
Contact ICS for custom frequency requirements
G N D
2
P L L
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te l (4 08) 297 -1201
PC P
ERIPHERAL
2 4 .5 7 6 M
2 5 M
2 5 M
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w w w. i c s t . c o m
ICS411
Revision 062005
C
LOCK

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ICS411LF Summary of contents

Page 1

Description The ICS411 is a cost-effective clock synthesizer developed to optimize component count for PC motherboard and peripheral applications. The device supports a common, low cost 14.31818 MHz crystal. The device locks all output frequencies to enhance system performance. By ...

Page 2

Pin Assignment CLK 2 7 VDD 3 6 GND 4 5 24. 576 (150 SOI C Pin Descriptions Pin Pin Number Name 1 ICLK 2 VDD 3 GND 4 24.576M ...

Page 3

External Components Series Termination Resistor Clock output traces over one inch should use series termination. To series terminate a 50 Ω trace (a commonly used trace impedance), place a 33 Ω resistor in series with the clock line, as close ...

Page 4

DC Electrical Characteristics VDD=3.3 V ±10% Notes: 1. Nominal switching threshold is VDD/2 Parameter Operating Voltage Input High Voltage Input Low Voltage Output High Voltage Output Low Voltage Operating Supply Current Short Circuit Current AC Electrical Characteristics VDD = 3.3 ...

Page 5

... ICS411MLF ICS411LF ICS411MLFT ICS411LF Parts that are ordered with a "LF" suffix to the part number are the Pb-Free configuration and are RoHS compliant. While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems (ICS) assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use ...

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