ICS502 Ver la hoja de datos (PDF) - Integrated Circuit Systems
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componentes Descripción
Fabricante
ICS502 Datasheet PDF : 4 Pages
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Pin Assignment
X1/ICLK 1
VDD 2
GND 3
REF 4
8 X2
7 S1
6 S0
5 CLK
ICS502
LOCO™ PLL Clock Multiplier
Clock Decoding Table (MHz)
S1 S0 CLK
00
x2
01
x5
M0
x3
M 1 x3.33
10
x4 Minimum input frequency for all
1 1 x2.5 selections is per table on page 3.
0 = connect directly to ground.
1 = connect directly to VDD.
M = leave unconnected (floating).
Common Output Frequencies Examples (MHz)
Output
20
25
30
32
33.33 37.5
40
48
50
54
60
Input
10
10
10
16
10
15
20
16
20
13.5
20
Selection (S1, S0) 0, 0
1, 1
M, 0
0, 0
M, 1
1, 1
0, 0
M, 0
1, 1
1, 0
M, 0
Output
64
66.66
72
75
80
81
90
100
108
120
135
Input
16
20
24
15
20
27
27
20
27
24
27
Selection (S1, S0) 1, 0
M, 1 M, 0
0, 1
1, 0
M, 0 M, 1
0, 1
1, 0
0, 1
0, 1
Note that all of the above outputs are achieved by using an inexpensive 10MHz to 27MHz crystal.
Consult MicroClock/ICS on how to achieve other output frequencies.
Pin Descriptions
Number
1
2
3
4
5
6
7
8
Name
X1/ICLK
VDD
GND
REF
CLK
S0
S1
X2
Type
I
P
P
O
O
I
TI
O
Description
Crystal connection or clock input.
Connect to +3.3V or +5V.
Connect to ground.
Buffered crystal oscillator output clock.
Clock output per Table above.
Select 0 for output clock. Connect to GND or VDD.
Select 1 for output clock. Connect to GND or VDD or float.
Crystal connection. Leave unconnected for clock input.
Key: I = Input, TI = Tri-Level Input, O = output, P = power supply connection
MDS 502 D
2
Revision 111000
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126•(408) 295-9800tel • www.icst.com
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