CGA-3318 Просмотр технического описания (PDF) - Stanford Microdevices
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CGA-3318 Datasheet PDF : 5 Pages
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Product Description
Stanford Microdevices 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 amplifier 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
1
8
2
7
3
6
4
5
PPrerelilmimininaarryy
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
Operates from a single supply
Dropping Resistor provides
Temperature Compensation
Applications
CATV Head End Driver and Predriver Amplifier
CATV Line Driver Amplifier
Key 75 Ohm Parameters at Room Temperature 50-860MHz CATV Band Data
Gain
Test Conditions: VS = 8.0 V
RBIAS=51 Ohms TL = 25ºC
lBIAS = 150mA
ZS = ZL = 75 Ohms
Freq.
50 MHz
500 MHz
860 MHz
Units
Min.
dB
Typ.
12.5
12.5
11.9
Max.
Output IP2
Tone spacing = 1 MHz
Pout/Tone = +6 dBm
50 MHz
70
500 MHz
dBm
68
860 MHz
73
Output IP3
Tone spacing = 1 MHz
Pout/Tone = +6 dBm
50 MHz
500 MHz
860 MHz
dBm
36.5
38.0
38.0
Output P1dB
50 MHz
500 MHz
860 MHz
dBm
20.0
21.0
20.6
Input Return Loss
50 MHz
15
500 MHz
dB
20
860 MHz
14
Output Return Loss
50 MHz
10
500 MHz
dB
14
860 MHz
19
Noise Figure
Average of 3 devices
Balun Insertion Loss Included
50 MHz
4.2
500 MHz
dB
4.3
860 MHz
4.8
CSO
Worst Case Over Band 79 Ch., Flat, +34dBmV
dBc
70
CTB
Worst Case Over Band 79 Ch., Flat, +34dBmV
dBc
68
XMOD
Worst Case Over Band 79 Ch., Flat, +34dBmV
dBc
63
Vd
V
4.3
Note: Measured in Push-Pull Application test board
The information provided herein is believed to be reliable at press time. Stanford Microdevices assumes no responsibility for inaccuracies or omissions.
Stanford Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the users 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. Stanford Microdevices does not
authorize or warrant any Stanford Microdevices product for use in life-support devices and/or systems.
Copyright 2001 Stanford Microdevices, Inc. All worldwide rights reserved.
726 Palomar Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
http://www.stanfordmicro.com
EDS-101993 Rev B
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