ics581-01-02 Integrated Device Technology, ics581-01-02 Datasheet
ics581-01-02
Manufacturer Part Number
ics581-01-02
Description
Zero Delay Glitch-free Clock Multiplexer
Manufacturer
Integrated Device Technology
Datasheet
1.ICS581-01-02.pdf
(10 pages)
ZERO DELAY GLITCH-FREE CLOCK MULTIPLEXER
Description
The ICS581-01/02 are glitch free, Phase Locked Loop
(PLL) based clock multiplexers (mux) with zero delay from
input to output. They each have four low skew outputs
which can be configured as a single output, three outputs,
or four outputs. The ICS581-01 allows user control over the
mux switching, while the ICS581-02 has automatic
switching between the two clock inputs.
The ICS581-01 and -02 are members of IDT’s
ClockBlocks
and distribution devices. For a non-PLL based clock mux,
see the ICS580-01.
Block Diagram
IDT™ / ICS™ ZERO DELAY GLITCH-FREE CLOCK MULTIPLEXER
TM
family of clock generation, synchronization,
ICS581-02
ICS581-01
FBIN
S1:0
SELA
FBIN
INA
INB
S1:0
DIV
INA
INB
2
2
/48
/3
1
0
1
0
1
0
VDD
IN
PLL
GND
PLL
GND
VDD
Transition
Detector
2
2
2
1
2
Output
Divide
Output
Features
•
•
•
•
•
•
•
•
•
•
•
Divide
16-pin TSSOP package
RoHS compliant packaging
No short pulses or glitches on output
Operates from 6 to 200 MHz
Low skew outputs
User controlled (-01) or automatic, timed mux switch (-02)
Ideal for systems with back-up or redundant clocks
Zero delay (input to output)
50% output duty cycle allows duty cycle correction
SpreadSmart
parts
Industrial temperature of ICS581-02 available
OE0
OE0
OE1
OE1
TM
technology works with spread spectrum
CLK2
CLK3
CLK4
CLK2
CLK3
CLK4
CLK1
CLK1
ICS581-01/02
ICS581-01/02
DATASHEET
REV L 051310
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