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SY88923V Datasheet(PDF) 4 Page - Micrel Semiconductor

Part No. SY88923V
Description  2.5Gbps HIGH-SPEED LIMITING POST AMPLIFIER
Download  6 Pages
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Maker  MICREL [Micrel Semiconductor]
Homepage  http://www.micrel.com
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SY88923V Datasheet(HTML) 4 Page - Micrel Semiconductor

   
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SY88923V
Micrel, Inc.
M9999-051706
hbwhelp@micrel.com or (408) 955-1690
Output Termination
The SY88923V outputs must be terminated with a 50
load to V
CC – 2V (or Thevenin equivalent).
Layout and PCB Design
Since the SY88923V is a high-frequency component,
performance can largely be determined by board layout
and design. A common problem with high-gain amplifiers is
feedback from the large swing outputs to the input via the
power supply.
DESIGN PROCEDURE
R1
R2
VCC
LOSLVL
VREF
Figure 3. LOS
LVL Circuit
50
50
0.1
µF
0.1
µF
0.1
µF
DIN+
DIN–
VREF
Figure 2. Differential Input Configuration
The SY88923V ground pin should be connected to the
circuit board ground. Use multiple PCB vias close to the
part to connect to ground. Avoid long, inductive runs which
can degrade performance.
Notes:
LOS
LVL = VCC
-1.32V +
R1 + R2
≥ 2.6kΩ
R2
× 1.32V
R1 + R2


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