IDT5V41065
2 OUTPUT PCIE GEN1/2 SYNTHESIZER
Pin Descriptions
VFQFPN TSSOP
Pin Pin
Number Number
Pin
Name
Pin
Type
Pin Description
16
1
1
2
3
4
5
6
S0
S1
Input Select pin 0. See Table1. Internal pull-up resistor.
Input Select pin 1. See Table 1. Internal pull-up resistor.
2
SS0
X1/ICLK
X2
Input Spread Select pin 0. See Table 2. Internal pull-up resistor.
Input Crystal or clock input. Connect to a 25 MHz crystal or single ended clock.
Output Crystal connection. Leave unconnected for clock input.
3
4
5
OE
Input Output enable. Tri-states outputs and device is not shut down. Internal
pull-up resistor.
6
7
8
7
8
9
GNDXD
SS1
Power Connect to ground.
Input Spread Select pin 1. See Table 2. Internal pull-up resistor.
IREF
Output Precision resistor attached to this pin is connected to the internal current
reference.
9
10
11
12
13
14
15
16
CLK1
CLK1
Output HCSL complementary clock output 1.
Output HCSL true clock output 1.
10
11
12
13
14
15
VDDODA
GNDODA
CLK0
Power Connect to voltage supply +3.3 V for output driver and analog circuits
Power Connect to ground.
Output HCSL complementary clock output 0.
Output HCSL true clock output 0.
CLK0
VDDXD
Power Connect to voltage supply +3.3 V for crystal oscillator and digital circuit.
IDT® 2 OUTPUT PCIE GEN1/2 SYNTHESIZER
3
IDT5V41065 APRIL 17, 2017