85401AKLFT IDT, Integrated Device Technology Inc, 85401AKLFT Datasheet - Page 7

• 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

Differential Clock Input Interface
The CLKx /CLKx accepts LVPECL, LVDS, CML and other
differential signals. The signal must meet the V
requirements. Figures 2A to 2E show interface examples for the
HiPerClockS CLKx/CLKx input driven by the most common driver
Figure 2A. HiPerClockS CLK/CLK Input Driven by an
Figure 2C. HiPerClockS CLK/CLK Input
Figure 2E. HiPerClockS CLK/CLK Input Driven by
IDT™ / ICS™ LVDS MULTIPLEXER
ICS85401
2:1 DIFFERENTIAL-TO-LVDS MULTIPLEXER
3.3V
3.3V
3.3V
LVDS
LVPECL
CML
IDT Open Collector CML Driver
Driven by a 3.3V LVPECL Driver
a 3.3V LVDS Drive
Zo = 50Ω
Zo = 50Ω
Zo = 50Ω
Zo = 50Ω
Zo = 50Ω
Zo = 50Ω
R3
125
3.3V
R1
84
R1
50
3.3V
R4
125
R2
84
R1
100
R2
50
PP
CLK
nCLK
CLK
nCLK
CLK
nCLK
and V
3.3V
3.3V
3.3V
HiPerClockS
HiPerClockS
HiPerClockS
CMR
input
7
types. The input interfaces suggested here are examples only. If
the driver is from another vendor, use their termination
recommendation. Please consult with the vendor of the driver
component to confirm the driver termination requirements.
Figure 2B. HiPerClockS CLK/CLK Input
Figure 2D. HiPerClockS CLK/CLK Input Driven by
3.3V
3.3V LVPECL
3.3V
CML Built-In Pullup
R5
100 - 200
Driven by a Built-In Pullup CML Driver
a 3.3V LVPECL Driver with AC Couple
R6
100 - 200
Zo = 50Ω
Zo = 50Ω
Zo = 50Ω
Zo = 50Ω
ICS85401AK REV. A MARCH 6, 2007
C1
C2
R1
125
R1
100
R2
125
CLK
nCLK
3.3V
CLK
nCLK
HiPerClockS
3.3V
HiPerClockS