ICS552-01A Datasheet, PDF (2/4 Pages) Integrated Circuit Systems – Crystal Oscillator & Multiplier with 8 Low Skew Outputs

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 4
S2 5
GND 6
CLK1 7
CLK2 8
17 CLK7
16 _VDD
15 _S3
14 GND
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
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