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ICSI - Package Outline and Package Dimensions

Numéro de référence ICS280
Description Package Outline and Package Dimensions
Fabricant ICSI 
Logo ICSI 





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ICS280 fiche technique
PRELIMINARY INFORMATION
ICS280
Triple PLL Field Prog. Spread Spectrum Clock Synthesizer
Description
The ICS280 field programmable spread spectrum
clock synthesizer generates up to four high-quality,
high-frequency clock outputs including multiple
reference clocks from a low-frequency crystal input. It
is designed to replace crystals, crystal oscillators and
stand alone spread spectrum devices in most
electronic systems.
Using ICS’ VersaClockTM software to configure PLLs
and outputs, the ICS280 contains a One-Time
Programmable (OTP) ROM for field programmability.
Programming features include input/output
frequencies, spread spectrum amount and eight
selectable configuration registers.
Using Phase-Locked Loop (PLL) techniques, the
device runs from a standard fundamental mode,
inexpensive crystal, or clock. It can replace multiple
crystals and oscillators, saving board space and cost.
The ICS280 is also available in factory programmed
custom versions for high-volume applications.
Features
Packaged as 16-pin TSSOP
Eight addressable registers
Replaces multiple crystals and oscillators
Output frequencies up to 200 MHz at 3.3 V
Configurable Spread Spectrum Modulation
Input crystal frequency of 5 to 27 MHz
Input clock frequency of 3 to 166 MHz
Up to four reference outputs
Operating voltages of 3.3 V
Controllable output drive levels
Advanced, low-power CMOS process
Available in Pb (lead) free packaging
Block Diagram
S2:S0 3
OTP
ROM
with PLL
Values
Crystal or
Clock Input
X1/ICLK
X2
Crystal
Oscillator
External capacitors
are required with a crystal input.
VDD 3
PLL1 with
Spread
Spectrum
PLL2
PLL3
Divide
Logic
and
Output
Enable
Control
GND 3
PDTS
CLK1
CLK2
CLK3
CLK4
MDS 280 C
1
Revision 062205
Integrated Circuit Systems, Inc. 525 Race Street, San Jose, CA 95126 tel (408) 297-1201 www.icst.com

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