MK5814 Integrated Circuit System, MK5814 Datasheet

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MK5814

Manufacturer Part Number
MK5814
Description
Low EMI Clock Generator
Manufacturer
Integrated Circuit System
Datasheet
MDS 5811A A
Description
The MK5811A device generates a low EMI output clock
from a clock or crystal input. The device is designed to
dither a high emissions clock to lower EMI in consumer
applications. Using ICS’ proprietary mix of analog and
digital Phase Locked Loop (PLL) technology, the device
spreads the frequency spectrum of the output and
reduces the frequency amplitude peaks by several dB.
The MK5811A offers both centered and down spread
from a high-speed clock input.
For different multiplier configurations, use the MK5812
(2x) or MK5814 (4x).
ICS offers many other clocks for computers and
computer peripherals. Consult ICS when you need to
remove crystals and oscillators from your board.
Block Diagram
Integrated Circuit Systems, Inc.
The crystal requires external capacitors for
accurate tuning of the clock
Spread Direction
X1/CLK
FRSEL
X2
S1:0
2
525 Race Street, San Jose, CA 95126
Clock Buffer/
Ocsillator
Crystal
1
GND
VDD
Features
and Spread
PLL Clock
Synthesis
Spectrum
Circuitry
Packaged in 8-pin SOIC
Available in Pb (lead) free package
Provides a spread spectrum output clock
Supports flat panel controllers
Accepts a clock or crystal input (provides same
frequency dithered output)
Input frequency range of 4 to 32 MHz
Output frequency range of 4 to 32 MHz
1X frequency multiplication
Center and down spread
Peak reduction by 8 dB to 16 dB typical on 3rd
through 19th odd harmonics
Low EMI feature can be disabled
Includes power down
Operating voltage of 3.3 V
Advanced, low-power CMOS process
Low EMI Clock Generator
tel (408) 297-1201
SSCLK
MK5811A
www.icst.com
Revision 091205

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MK5814 Summary of contents

Page 1

... The MK5811A offers both centered and down spread from a high-speed clock input. For different multiplier configurations, use the MK5812 (2x) or MK5814 (4x). ICS offers many other clocks for computers and computer peripherals. Consult ICS when you need to remove crystals and oscillators from your board. ...

Page 2

... connect to GND M = unconnected (floating connect directly to VDD Note 1: The information in this datasheet does not apply to the MK5812 and MK5814 as each have independent datasheets available at www.icst.com. MDS 5811A A Integrated Circuit Systems, Inc. Spread Direction and Spread Percentage S0 S1 ...

Page 3

... GPIO pins which drive the select pins. MDS 5811A A Integrated Circuit Systems, Inc. Pin Description Connect to 4-32 MHz crystal or clock. Connect to ground. Function select 1 input. Selects spread amount and direction per table above. ...

Page 4

... Ambient Operating Temperature Storage Temperature Junction Temperature Soldering Temperature Recommended Operation Conditions Parameter Ambient Operating Temperature Power Supply Voltage (measured in respect to GND) MDS 5811A A Integrated Circuit Systems, Inc. Item Min. 0 +3.0 4 525 Race Street, San Jose, CA 95126 MK5811A Low EMI Clock Generator ...

Page 5

... Cycle-to-cycle Jitter 1 Cycle-to-cycle Jitter Output Rise Time Output Fall Time EMI Peak Frequency Reduction Note 1: Spread is enabled. MDS 5811A A Integrated Circuit Systems, Inc. Conditions No load, at 3.3 V, Fin=12 MHz No load, at 3.3 V, Fin=24 MHz No load, at 3.3 V, Fin=32 MHz CMOS ...

Page 6

... Package dimensions are kept current with JEDEC Publication No INDEX AREA Thermal Characteristics for 8-pin SOIC Parameter Thermal Resistance Junction to Ambient Thermal Resistance Junction to Case MDS 5811A A Integrated Circuit Systems, Inc. (8-pin SOIC, 150 Mil. Body) Symbol α ...

Page 7

... 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, Inc. (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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