650G-36LF IDT, 650G-36LF Datasheet - Page 2

• Manufacturer Part Number: 650G-36LF
• Description: Clock Drivers & Distribution SYSTEM PERIPHERAL CLOCK SOURCE
• Manufacturer: IDT

Specifications of 650G-36LF

• Rohs: yes
• Part # Aliases: ICS650G-36LF

Pin Assignment
Pin Descriptions
IDT™ / ICS™ NETWORKING AND PCI CLOCK SOURCE
ICS650-36
NETWORKING AND PCI CLOCK SOURCE
Number
PDTS
CLK3
CLK2
GND
VDD
Pin
X2
X1
S2
10
11
12
13
1
2
3
4
5
6
7
8
9
16-pin (173 mil) TSSOP
1
2
3
4
5
6
7
8
Name
PDTS
CLK3
CLK2
CLK1
GND
GND
VDD
VDD
Pin
X2
X1
S2
S1
S0
16
15
14
13
12
11
10
9
Output
Output
Output
Output
Power
Power
Power
Power
Type
Input
Input
Input
Input
Input
Pin
VDD
GND
REF
S0
VDD
CLK1
GND
S1
Crystal connection. Connect to 25 MHz crystal input or float for
clock.
Crystal connection. Connect to 25 MHz crystal or clock input.
Connect to ground.
Selectable clock output. See table above for frequency. Weak
internal pull-down when tri-state.
Powers down entire chip and tri-states outputs when low. Internal
pull-up resistor.
Select pin. Selects clock output frequency from table above.
Internal pull-up resistor.
Selectable clock output. See table above for frequency. Weak
internal pull-down when tri-state.
Connect to +3.3 V.
Select pin. Selects clock output frequency from table above.
Internal pull-up resistor.
Connect to ground.
Selectable clock output. See table above for frequency. Weak
internal pull-down when tri-state.
Connect to +3.3 V.
Select pin. Selects clock output frequency from table above.
Internal pull-up resistor.
2
CLK Output Selection Table
Note: All frequencies are in MHz.
S2
0
0
0
0
1
1
1
1
Pin Description
S1
0
0
1
1
0
0
1
1
S0
0
1
0
1
0
1
0
1
REF
OFF
ON
ON
ON
ON
ON
ON
ON
33.333
33.333
66.666
33.333
33.333
33.333
CLK1
33.30
33.30
CLOCK SYNTHESIZER
ICS650-36
33.333
66.666
66.666
66.666
CLK2
50
50
50
50
CLK3
REV F 051310
125
125
125
125
125
100
100
125