ICS8545AG-02LF IDT, Integrated Device Technology Inc, ICS8545AG-02LF Datasheet - Page 9

• Manufacturer Part Number: ICS8545AG-02LF
• Description: IC FANOUT BUFFER 1-4 20-TSSOP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Fanout Buffer (Distribution), Multiplexerr

Specifications of ICS8545AG-02LF

• Number Of Circuits: 1
• Ratio - Input:output: 1:4
• Differential - Input:output: No/Yes
• Input: LVCMOS, LVTTL
• Output: LVDS
• Frequency - Max: 350MHz
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP
• Frequency-max: 350MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 8545AG-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.
Figure 2. Typical LVDS Driver Termination
IDT™ / ICS™ LVDS FANOUT BUFFER
ICS8545-02
LOW SKEW, 1-TO-4, LVCMOS/LVTTL-TO-LVDS FANOUT BUFFER
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.
For a multiple LVDS outputs buffer, if only partial outputs are used,
it is recommended to terminate the unused outputs.
+
–
3.3V
ICS8545AG-02 REV. A March 3, 2009