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ICS552-01A Datasheet Preview

ICS552-01A Datasheet

Crystal Oscillator & Multiplier

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ICS552-01A
Crystal Oscillator & Multiplier with 8 Low Skew Outputs
Description
The ICS552-01A produces 8 low skew
copies of a multiple of the input when a
clock or fundamental, parallel-mode crystal
is connected to it. Unlike other clock
drivers, it does not require a separate
oscillator for the input. Using a phase-
locked loop (PLL) to multiply the input
frequency, it is ideal for generating and
distributing multiple high frequency clocks.
Block Diagram
VDD GND
Features
• Packaged in 20 pin SSOP (QSOP)
• Input frequency of 10.0 - 27.0 MHz
• Contains on-chip multiplier with selections
of x1, x1.33, x2, x2.66, x3, x3.33, x4,
x4.66, x5, and x6
• Provides 8 low skew outputs (<250 ps)
• Output clock duty cycle of 40/60 at 3.3 V
• Operating voltages of 3.0 V to 5.5 V
• Industrial temperature available
• Power Down and Tri state modes
S3:S0
4
PLL
Multiplier
10.0 - 27.0 MHz
crystal or clock X1
X2
Clock
Buffer/
Crystal
Oscillator
Output
Buffer
Output
Buffer
Output
Buffer
Output
Buffer
Output
Buffer
Output
Buffer
Output
Buffer
Output
Buffer
CLK1
CLK2
CLK3
CLK4
CLK5
CLK6
CLK7
CLK8
MDS 552-01 AB
1 Revision 032200 Printed 11/14/00
Integrated Circuit Systems • 525 Race Street • San Jose • CA • 95126 • (408) 295-9800tel • www.icst.com



ICST
ICST

ICS552-01A Datasheet Preview

ICS552-01A Datasheet

Crystal Oscillator & Multiplier

No Preview Available !

ICS552-01A pdf
ICS552-01A
Crystal Oscillator & Multiplier with 8 Low Skew Outputs
Pin Assignment
DC 1
X2 2
20 S0
19 DC
X1/ICLK 3
18 CLK8
VDD
S2
GND
CLK1
4
5
6
7
17 CLK7
16 VDD
15 S3
14 GND
CLK2 8
13 CLK6
CLK3 9
12 CLK5
CLK4 10
11 S1
20 pin SSOP (QSOP)
Multiplier Select Table
S3 S2 S1 S0 Multiplier
0 0 0 0 Power Down
0001
x1
0010
x1.333
0011
x2
0100
x2.666
0101
x3
0110
x3.333
0111
x4
1000
x5
1001
x4.66
1010
x6
1 1 0 1 Tri state All
0 = connect directly to ground.
1 = connect directly to VDD.
All clocks stop low in Power Down state.
All clocks outputs are high impedance in 1101 mode.
Pin Descriptions
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Name
DC
X2
X1/ICLK
VDD
S2
GND
CLK1
CLK2
CLK3
CLK4
S1
CLK5
CLK6
GND
S3
VDD
CLK7
CLK8
DC
S0
Type
-
XO
XI
P
I
P
O
O
O
O
I
O
O
P
I
P
O
O
-
I
Description
Don't connect.
Crystal connection. Connect to a 10 - 27 MHz fundamental mode crystal.
Crystal connection. Connect to a 10 - 27 MHz fundamental mode crystal, or clock.
Connect to +3.3 V or +5.0 V. Decouple with pin 6.
Multiplier Select Pin 2 per table above.
Connect to ground.
Clock Output 1.
Clock Output 2.
Clock Output 3.
Clock Output 4.
Multiplier Select Pin 1 per table above.
Clock Output 5.
Clock Output 6.
Connect to ground.
Multiplier Select Pin 3 per table above.
Connect to +3.3 V or +5.0 V. Decouple with pin 14.
Clock Output 7.
Clock Output 8.
Don't connect.
Multiplier Select Pin 0 per table above.
Key: I = Input; O = output; P = power supply connection, XI, XO = crystal connections
MDS 552-01 AB
2 Revision 032200 Printed 11/14/00
Integrated Circuit Systems • 525 Race Street • San Jose • CA • 95126 • (408) 295-9800tel • www.icst.com


Part Number ICS552-01A
Description Crystal Oscillator & Multiplier
Maker ICST
Total Page 4 Pages
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