8S89874BKILF IDT [Integrated Device Technology], 8S89874BKILF Datasheet - Page 10

• Manufacturer Part Number: 8S89874BKILF
• Description: 1:2 Differential-to-LVPECL Buffer/Divider
• Manufacturer: IDT [Integrated Device Technology]

ICS8S89874I Data Sheet
2.5V LVPECL Input with Built-In 50
The IN /nIN with built-in 50Ω terminations accept LVDS, LVPECL,
CML and other differential signals. Both signals must meet the V
and V
examples for the IN/nIN with built-in 50
Figure 3A. IN/nIN Input with Built-In 50Ω
Figure 3C. IN/nIN Input with Built-In 50Ω
ICS8S89874BKI REVISION A OCTOBER 22, 2010
3.3V or 2.5V
IH
2.5V
input requirements. Figures 3A to 3D show interface
CML
LVDS
Driven by an LVDS Driver
Driven by a CML Driver
Zo = 50Ω
Zo = 50Ω
Zo = 50Ω
Zo = 50Ω
Ω
termination input driven by
IN
VT
nIN
IN
VT
nIN
Ω
2.5V
2.5V
Termination Interface
Receiver
With
Built-In
50Ω
Receiver
With
Built-In
50Ω
IN
10
the most common driver 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 3B. IN/nIN Input with Built-In 50Ω
Figure 3D. IN/nIN Input with Built-In 50Ω Driven by a
2.5V
2.5V
CML - Built-in 50Ω Pull-up
LVPECL
Driven by an LVPECL Driver
CML Driver with Built-In 50Ω Pullup
1:2 DIFFERENTIAL-TO-LVPECL BUFFER/DIVIDER
Zo = 50Ω
Zo = 50Ω
Zo = 50Ω
Zo = 50Ω
©2010 Integrated Device Technology, Inc.
R1
18Ω
IN
VT
nIN
IN
VT
nIN
2.5V
2.5V
Receiver
With
Built-In
50Ω
Receiver
With
Built-In
50Ω