clc2000 Cadeka Microcircuits LLC., clc2000 Datasheet - Page 16

• Manufacturer Part Number: clc2000
• Description: High Output Current Dual Amplifer
• Manufacturer: Cadeka Microcircuits LLC.

Data Sheet
Line coupling through a 1:2 transformer is used to realize
these levels. Standard back termination is used to match
the characteristic 100Ω impedance of the CAT5 cable. For
proper power transfer, this requires an effective 1:4 im-
pedance match of 25Ω at the inputs of the transformer. To
account for the voltage drop of the impedance matching
resistors, the signal levels at the output of the amplifier
need to be doubled. Thus each amplifier will swing ±3.75V
about a centered common mode output voltage.
In general, the CLC2000 can be used in any application
where an economical and local hardwired connection is
needed. For example, routing analog or digital video infor-
mation for a in-cabin entertainment system. Networking of
a local surveillance system also could be considered.
Layout Considerations
General layout and supply bypassing play major roles in
high frequency performance. CADEKA has evaluation
boards to use as a guide for high frequency layout and as
aid in device testing and characterization. Follow the steps
below as a basis for high frequency layout:
• Include 6.8µF and 0.1µF ceramic capacitors for power
supply decoupling
• Place the 6.8µF capacitor within 0.75 inches of the power pin
• Place the 0.1µF capacitor within 0.1 inches of the power pin
• Remove the ground plane under and around the part,
especially near the input and output pins to reduce para-
sitic capacitance
• Minimize all trace lengths to reduce series inductances
Refer to the evaluation board layouts below for more in-
formation.
Evaluation Board Information
The following evaluation board is available to aid in the
testing and layout of this device:
©2004-2008 CADEKA Microcircuits LLC
CEB006
Evaluation Board
#
CLC2000
Products
Evalutaion Board Schematics
Evaluation board schematics and layouts are shown in Fig-
ures 7-9. These evaluation boards are built for dual- sup-
ply operation. Follow these steps to use the board in a
single-supply application:
directly connected to the ground plane.
1. Short -Vs to ground.
2. Use C3 and C4, if the -V
Figure 7. CEB006 Schematic
Figure 8. CEB006 Top View
S
pin of the amplifier is not
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