
Preliminary
Product Description
Sirenza Microdevice’s CGA-3318 is a high performance Silicon
Germanium HBT MMIC Amplifier. Designed with SiGe process
technology for excellent linearity at an exceptional price. A
Darlington configuration is utilized for broadband performance.
The heterojunction increases breakdown voltage and minimizes
leakage current between junctions. The CGA-3318 contains
two amplifiers for use in wideband Push-Pull CATV amplifiers
requiring excellent second order performance. The second and
third order non-linearities are greatly improved in the push pull
configuration.
Amplifier Configuration
EDS-101993 Rev G
1
303 S. Technology Ct., Broomfield, CO 80021 Phone: (800) SMI-MMIC http://www.sirenza.com
The information provided herein is believed to be reliable at press time. Sirenza Microdevices assumes no responsibility for inaccuracies or omissions. Sirenza Microdevices assumes no responsibility for the use of
this information, and all such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are
implied or granted to any third party. Sirenza Microdevices does not authorize or warrant any Sirenza Microdevices product for use in life-support devices and/or systems. Copyright 2001 Sirenza Microdevices, Inc..
All worldwide rights reserved.
CGA-3318
Dual CATV Broadband High
Linearity SiGe HBT Amplifier
Product Features
Excellent CSO/CTB/XMOD Performance at
+34 dBmV Output Power per Tone
Dual Devices in each SOIC-8 Package simplify
Push-Pull configuration PC board layout
5 to 900 MHz operation
Applications
CATV Head End Driver and Predriver Amplifier
CATV Line Driver Amplifier
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Test Conditions:
V
S
= 8 V R
BIAS
= 51 Ohms I
D
= 150 mA Typ. @ T
L
= 25oC Z
S
= Z
L
= 75 Ohms Push Pull Application Circuit
ELECTRICAL SPECIFICATIONS