max9235ete Maxim Integrated Products, Inc., max9235ete Datasheet - Page 8

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max9235ete

Manufacturer Part Number
max9235ete
Description
10-bit Lvds Serializer
Manufacturer
Maxim Integrated Products, Inc.
Datasheet

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The MAX9235 can operate in point-to-point or broad-
cast topologies.
A point-to-point connection terminated at each end in
the characteristic impedance of the cable or PCB
traces is shown in Figure 8. The total load seen by the
serializer is 50Ω. The double termination typically
reduces reflections compared to a single 100Ω termi-
nation. A single 100Ω termination at the deserializer
input is feasible and will make the differential signal
swing larger.
A point-to-point broadcast configuration is shown in
Figure 9. The low-jitter MAX9150 10-port repeater is
10-Bit LVDS Serializer
Figure 8. Double-Terminated Point-to-Point
8
Figure 9. Point-to-Point Broadcast Using MAX9150 Repeater
_______________________________________________________________________________________
PARALLEL
DATA IN
REPEATER
MAX9150
100Ω
MAX9235
ASIC
100Ω
100Ω
MAX9235
100Ω
Topologies
100Ω
SERIALIZED DATA
ASIC
100Ω
MAX9206
used to reproduce and transmit the serializer output
over 10 double-terminated point-to-point links.
The repeater eliminates nine serializers compared to 10
individual point-to-point serializer-to-deserializer con-
nections. Since repeater jitter subtracts from the serial-
izer-deserializer timing margin, a low-jitter repeater is
essential in most high data rate applications.
For LVDS applications, a four-layer PCB that provides
separate power, ground, and input/output signals is
recommended. Separate LVTTL/LVCMOS and LVDS
signals from each other to prevent coupling into the
LVDS lines.
100Ω
MAX9206
MAX9206
ASIC
100Ω
Board Layout
PARALLEL
DATA OUT

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