8545AG-02LF IDT, 8545AG-02LF Datasheet - Page 9

• Manufacturer Part Number: 8545AG-02LF
• Description: Clock Drivers & Distribution
• Manufacturer: IDT

Specifications of 8545AG-02LF

• Product Category: Clock Drivers & Distribution
• Rohs: yes
• Part # Aliases: ICS8545AG-02LF

Application Information
Recommendations for Unused Input and Output Pins
Inputs:
CLK Inputs
For applications not requiring the use of a clock input, it can be left
floating. Though not required, but for additional protection, a 1kΩ
resistor can be tied from the CLK input to ground.
LVCMOS Control Pins
All control pins have internal pull-ups or pull-downs; additional
resistance is not required but can be added for additional protection.
A 1kΩ resistor can be used.
3.3V LVDS Driver Termination
A general LVDS interface is shown in Figure 2. In a 100Ω differential
transmission line environment, LVDS drivers require a matched load
termination of 100Ω across near the receiver input. For a multiple
Figure 2. Typical LVDS Driver Termination
ICS8545I-02 Data Sheet
ICS8545AGI-02 REVISION A JULY 29, 2009
3.3V
LVDS Driver
100 Differential Transmission Line
50
50
R1
100
9
Outputs:
LVDS Outputs
All unused LVDS output pairs can be either left floating or terminated
with 100Ω across. If they are left floating, there should be no trace
attached.
LVDS outputs buffer, if only partial outputs are used, it is
recommended to terminate the unused outputs.
+
–
3.3V
LOW SKEW, 1-TO-4 LVCMOS/LVTTL-TO-LVDS FANOUT BUFFER
©2009 Integrated Device Technology, Inc.