SY88903VKG Micrel Inc, SY88903VKG Datasheet - Page 5

• Manufacturer Part Number: SY88903VKG
• Description: IC AMP POST PECL 3.3V TTL 10MSOP
• Manufacturer: Micrel Inc
• Type: Limiting Postamplifierr

Specifications of SY88903VKG

• Applications: Optical Networks
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-2072-5; SY88903VKG

Micrel, Inc.
Output Termination
load to V
Layout and PCB Design
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.
M9999-111307
[e-mail] or [phone]
DESIGN PROCEDURE
The SY88903V outputs must be terminated with a 50Ω
Since the SY88903V is a high-frequency component,
Figure 2. Differential Input Configuration
CC
–2V (or Thevenin equivalent).
0.1µF
0.1µF
50Ω
0.1µF
50Ω
V
D
D
REF
IN+
IN–
5
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
R1 + R2 ≥ 2.6kΩ
The SY88903V ground pin should be connected to the
LVS
= V
CC
-1.32V x
R1
R2
Figure 3. LOSLVL Circut
V
CC
R1 + R2
R1
LOS
V
REF
LVL
SY88903V