
IDT5V41066
4 OUTPUT PCIE GEN1/2 SYNTHESIZER
IDT 4 OUTPUT PCIE GEN1/2 SYNTHESIZER
3
IDT5V41066
REV D 112211
Pin Descriptions
Pin
Name
Pin
Type
Pin Description
1
VDDXD
Power
Connect to +3.3 V digital supply.
2
S0
Input
Spread spectrum select pin #0. See table above. Internal pull-up resistor.
3
S1
Input
Spread spectrum select pin #1. See table above Internal pull-up resistor.
4
S2
Input
Spread spectrum select pin #2. See table above. Internal pull-up resistor.
5
X1
Input
Crystal connection. Connect to a fundamental mode crystal or clock input.
6
X2
Output
Crystal connection. Connect to a fundamental mode crystal or leave open.
7
PD
Input
Powers down all PLL’s and tri-states outputs when low. Internal pull-up resistor.
8
OE
Input
Provides output on, tri-states output (High = enable outputs; Low = disable outputs).
Internal pull-up resistor.
9
GND
Power
Connect to digital ground.
10
IREF
Output
Precision resistor attached to this pin is connected to the internal current reference.
11
CLKD
Output
Selectable 100/200 MHz spread spectrum differential Complement output clock D.
12
CLKD
Output
Selectable 100/200 MHz spread spectrum differential True output clock D.
13
CLKC
Output
Selectable 100/200 MHz spread spectrum differential Complement output clock C.
14
CLKC
Output
Selectable 100/200 MHz spread spectrum differential True output clock C.
15
VDDODA
Power
Connect to +3.3 V analog supply.
16
GND
Power
Connect to analog ground.
17
CLKB
Output
Selectable 100/200 MHz spread spectrum differential Complement output clock B.
18
CLKB
Output
Selectable 100/200 MHz spread spectrum differential True output clock B.
19
CLKA
Output
Selectable 100/200 MHz spread spectrum differential Complement output clock A.
20
CLKA
Output
Selectable 100/200 MHz spread spectrum differential True output clock A.