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ICS581-01 fiches techniques PDF

Integrated Circuit Systems - (ICS581-01/-02) Zero-Delay Glitch-Free Clock Multiplexer

Numéro de référence ICS581-01
Description (ICS581-01/-02) Zero-Delay Glitch-Free Clock Multiplexer
Fabricant Integrated Circuit Systems 
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ICS581-01 fiche technique
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ICS581-01, -02
Zero-Delay Glitch-Free Clock Multiplexer
Description
Features
The ICS581-01 and ICS581-02 are glitch free,
Phase Locked Loop (PLL) based clock multiplexers
(mux) with zero delay from input to output. They
each have 4 low skew outputs which can be
configured as a single output, 3 outputs or 4
outputs. The ICS581-01 allows user control over
the mux switching. The ICS581-02 has automatic
switching between the 2 clock inputs.
The ICS581-01 and -02 are members of the ICS
Clock Blocks™ family of clock generation,
synchronization, and distribution devices. For a
non-PLL based clock mux, see the ICS580-01.
Block Diagrams
• Tiny 16 pin TSSOP package
• No short pulses or glitches on output. Operates to
200 MHz
• User controlled (ICS581-01) or automatic, timed
(ICS581-02) switch
• Low skew outputs
• Ideal for systems with backup or redundant clocks
• Zero delay, input to output
• 50% output duty cycle allows duty cycle correction
• Spread Smart™ technology works with spread
spectrum parts
INA
INB
FBIN
ICS581-01
1
0
SELA
OE0
OE1
CLK1
OE0
CLK2
PLL
2 CLK3
S0, S1
CLK4
OE1
External Feedback
÷48 1
÷3 0
IN NO_INA
Transition
Detector
DIV
INA 1
INB 0
CLK1
OE0
CLK2
FBIN
ICS581-02
PLL
OE0 2
OE1 S0, S1
CLK3
CLK4
External Feedback
OE1
MDS 581-01, 581-02 A
1 Revision 041100
Printed 11/14/00
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126• (408) 295-9800tel • www.icst.com

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