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ICS548A-03

LOW SKEW CLOCK INVERTER AND DIVIDER



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LOW SKEW CLOCK INVERTER AND DIVIDER
DATASHEET
ICS548A-03
Description
The ICS548A-03 is a low cost, low skew, high-performance
general purpose clock designed to produce a set of one
output clock, one inverted output clock, and one clock
divided-by-two. Using our patented Phase-Locked Loop
(PLL) techniques, the device operates from a frequency
range of 10 MHz to 120 MHz in the PLL mode, and up to
160 MHz in the non-PLL mode.
In applications that need to maintain low phase noise in the
clock tree, the non-PLL (when S3=S2=1) modes should be
used.
This chip is not a zero delay buffer. Many applications may
be able to use the ICS527 for zero delay dividers.
Features
Packaged in 16-pin SOIC (150 mil)
Input clock up to 160 MHz in the non-PLL mode
Provides clock outputs of CLK, CLK, and CLK/2
Low skew (500 ps) on CLK, CLK, and CLK/2
All outputs can be tri-stated
Entire chip can be powered down by changing one or two
select pins
3.3 V operating range
Available in commercial and industrial temperature
ranges
RoHS 5 (green) or RoHS 6 (green and lead free)
compliant package
Block Diagram
S3:S0
4
Clock
input
Input
Buffer
VDD
2
GND
2
Clock
Synthesis
and Divider
Circuitry
CLK
CLK
CLK/2
OE (all outputs)
IDT™ / ICS™ LOW SKEW CLOCK INVERTER AND DIVIDER
1
ICS548A-03 REV C 063006



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ICS548A-03 pdf
ICS548A-03
LOW SKEW CLOCK INVERTER AND DIVIDER
www.DataSheet4U.com
Pin Assignment
ICLK
VDD
VDD
S3
GND
GND
S2
S0
1
2
3
4
5
6
7
8
16 DC
15 DC
14 DC
13 CLK
12 CLK
11 CLK/2
10 OE
9 S1
CLK, CLK, and CLK/2 Select Table (MHz)
S3 S2 S1 S0 CLK, CLK
0 000
Low
0 001
Input/4
0 010
Input
0 011
Input/2
0 100
Low
0 1 0 1 Input x 2
0 110
Input/5
0 111
Input/3
1 000
Low
1 001
Input/4
1 010
Input
1 011
Input/2
1 100
Low
1 101
Input/6
1 110
Input/8
1 111
Input/2
CLK/2
Low
Input/8
Input/2
Input/4
Low
Input
Input/10
Input/6
Low
Input/8
Input/2
Input/4
Low
Input/12
Input/16
Input/4
PLL
OFF
ON
ON
ON
OFF
ON
ON
ON
OFF
ON
ON
ON
OFF
OFF
OFF
OFF
Input Range
Power Down
30 - 120
20 - 40
20 - 80
Power Down
10 - 20
40 - 120
25 - 120
Power Down
30 - 120
20 - 40
20 - 80
Power Down
0 - 160
0 - 160
0 - 80
CLOCK DIVIDER
IDT™ / ICS™ LOW SKEW CLOCK INVERTER AND DIVIDER
2
ICS548A-03 REV C 063006



Part Number ICS548A-03
Description LOW SKEW CLOCK INVERTER AND DIVIDER
Maker Integrated Device Technology - Integrated Device Technology
Total Page 7 Pages
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