8S89874BKILF IDT [Integrated Device Technology], 8S89874BKILF Datasheet - Page 9

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

ICS8S89874I Data Sheet
Applications Information
3.3V Differential 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 input with built-in 50Ω terminations driven by
Figure 2A. N/nIN Input with Built-In 50Ω
Figure 2C. IN/nIN Input with Built-In 50Ω
ICS8S89874BKI REVISION A OCTOBER 22, 2010
3.3V
IH
3.3V
input requirements. Figures 2A to 2D show interface
CML – Open Collector
LVDS
Driven by an LVDS Driver
Driven by a CML Driver
Zo = 50Ω
Zo = 50Ω
Zo = 50Ω
Zo = 50Ω
IN
VT
nIN
IN
VT
nIN
3.3V
3.3V
Ω
Receiver
With
Built-In
50Ω
Termination Interface
Receiver
With
Built-In
50Ω
IN
9
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 2B. IN/nIN Input with Built-In 50Ω
Figure 2D. IN/nIN Input with Built-In 50Ω Driven by a
3.3V
3.3V
LVPECL
CML – Built-in 50Ω Pull-up
Driven by an LVPECL Driver
CML Driver with Built-In 50Ω Pullup
Zo = 50Ω
Zo = 50Ω
1:2 DIFFERENTIAL-TO-LVPECL BUFFER/DIVIDER
Zo = 50Ω
Zo = 50Ω
©2010 Integrated Device Technology, Inc.
R1
50Ω
IN
VT
nIN
IN
VT
nIN
3.3V
3.3V
Receiver
With
Built-In
50Ω
Receiver
With
Built-In
50Ω