ICS650-11B Datasheet, PDF (2/4 Pages) Integrated Circuit Systems – BroadCom Networking Clock Synthesizer

PRELIMINARY INFORMATION
ICS650-11B
BroadCom Networking Clock Synthesizer
Pin Assignment
GND 1
X2 2
X1 3
VDD 4
GND 5
GND 6
DC 7
DC 8
DC 9
100M 10
20 D C
19 D C
18 133.33M
17 33.33M
16 VDD
15 VDD
14 _GND
13 25M
12 66.66M
11 _GND
20 pin (150 mil) SSOP
Pin Descriptions
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Name
GND
X2
X1
VDD
GND
GND
DC
DC
DC
100M
GND
66.66M
25M
GND
VDD
VDD
33.33M
133.33M
DC
DC
Type
P
XO
XI
P
P
P
-
-
-
O
P
O
O
P
P
P
O
O
-
-
Description
Connect to ground.
Crystal connection. Connect to 25 MHz crystal or leave unconnected for a clock input.
Crystal connection. Connect to 25 MHz fundamental crystal or clock input.
Connect to +3.3 V or +5 V. Must be same as other VDDs.
Connect to ground.
Connect to ground.
Don't Connect. Do not connect anything to this pin.
Don't Connect. Do not connect anything to this pin.
Don't Connect. Do not connect anything to this pin.
100.0 MHz clock output.
Connect to ground.
66.66 MHz clock output.
25.0 MHz clock output.
Connect to ground.
Connect to +3.3V or +5V. Must be same as other VDDs.
Connect to +3.3 V or +5 V. Must be same as other VDDs.
33.33 MHz clock output.
133.33 MHz clock output.
Don't Connect. Do not connect anything to this pin.
Don't Connect. Do not connect an thing to this pin.
Key: XI, XO = crystal connections; O = Output; P = power supply connection
MDS 650-11B C
2
Revision 012005
Printed 11/14/04
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