ICS501
LOCO™ PLL CLOCK MULTIPLIER
CLOCK MULTIPLIER
Pin Assignment
Clock Output Table
S1 S0
CLK
4X input
Minimum Input
0
0
0
M
1
per page 5
20 MHz
X1/ICLK
VDD
8
7
6
5
1
2
3
4
X2
5.3125X input
5X input
OE
S0
0
per page 5
4 MHz
M
M
M
1
0
6.25X input
2X input
GND
S1
M
1
per page 5
8 MHz
CLK
3.125X input
6X input
0
per page 5
per page 5
per page 5
8 Pin (150 mil) SOIC
1
M
1
3X input
1
8X input
0 = connect directly to ground
1 = connect directly to VDD
M = leave unconnected (floating)
Common Output Frequency Examples (MHz)
Output
Input
20
24
12
30
10
32
16
33.33
16.66
M, M
37.5
12
40
10
48
12
50
60
62.5
20
10
16.66
1, M
10
Selection (S1, S0) M, M
M, M
1, M
M, M
M, 1
0, 0
0, 0
1, 0
M, 1
Output
64
16
66.66
16.66
0, 0
72
12
75
12
80
10
83.33
16.66
0, 1
90
15
100
20
106.25
20
120
15
125
20
Input
Selection (S1, S0)
0, 0
1, 0
M, 0
1, 1
1, 0
0, 1
0, M
1, 1
M, 0
Pin Descriptions
Pin Pin
Number Name
Pin
Type
Pin Description
1
2
3
4
5
6
7
8
XI/ICLK
VDD
GND
S1
Input
Power
Power
Crystal connection or clock input.
Connect to +3.3 V or +5 V.
Connect to ground.
Tri-level Iinput
Output
Select 1 for output clock. Connect to GND or VDD or float.
Clock output per table above.
CLK
S0
Tri-level Input
Input
Select 0 for output clock. Connect to GND or VDD or float.
OE
Output enable. Tri-states CLK output when low. Internal pull-up.
Crystal connection. Leave unconnected for clock input.
X2
Output
IDT™ / ICS™ LOCO™ PLL CLOCK MULTIPLIER
2
ICS501
REV Q 092209
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
