85401AKLFT IDT, Integrated Device Technology Inc, 85401AKLFT Datasheet - Page 8

• Manufacturer Part Number: 85401AKLFT
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock Multiplexerr

Specifications of 85401AKLFT

• Number Of Clock Inputs: 2
• Mode Of Operation: Differential
• Output Frequency: >2500MHz
• Output Logic Level: LVDS
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.465V
• Package Type: VFQFN
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 16
• Lead Free Status / RoHS Status: Compliant

Recommendations for Unused Input Pins
Inputs:
CLK/CLK Inputs:
For applications not requiring the use of the differential input, both
CLK and CLK can be left floating. Though not required, but for
additional protection, a 1kW resistor can be tied from CLK to
ground.
Application Schematic Example
Figure 3 shows an example of ICS85401 application schematic.
This device can accept different types of input signal. In this
Figure 3. ICS85401 Application Schematic Example
IDT™ / ICS™ LVDS MULTIPLEXER
ICS85401
2:1 DIFFERENTIAL-TO-LVDS MULTIPLEXER
3.3V
3.3V
LVDS
LVDS
Zo = 50
Zo = 50
Zo = 50
Zo = 50
100
100
R2
R3
0.1u
C1
U1
ICS85401
1
2
3
4
CLK0
nCLK0
CLK1
nCLK1
1K
R4
3.3V
GND
GND
nQ
Q
3.3V
12
11
10
9
8
C2
0.1u
example, the input is driven by a LVDS driver. The decoupling
capacitor should be located as close as possible to the power pin.
Zo = 50
Zo = 50
R1
100
+
-
ICS85401AK REV. A MARCH 6, 2007