Preliminary
Product Description
Stanford Microdevices’ SGA-2386 is a high performance
cascadeable 50-ohm amplifier designed for operation from
a 2.7-volt supply. This RFIC uses the latest Silicon
Germanium Heterostructure Bipolar Transistor (SiGe HBT)
process featuring 1 micron emitters with F
T
up to 65 GHz.
This circuit uses a darlington pair topology with resistive
feedback for broadband performance as well as stability
over its entire temperature range. Internally matched to
50 ohm impedance, the SGA-2386 requires only DC
blocking and bypass capacitors for external components.
SGA-2386
DC-2800 MHz Silicon Germanium
HBT Cascadeable Gain Block
Small Signal Gain vs. Frequency
24
18
Product Features
•
DC-2800 MHz Operation
•
2.7V Single Voltage Supply
•
High Output Intercept: +21dBm typ. at 850 MHz
•
High Gain: 17.2dB typ. at 850 MHz
•
Low Noise Figure: 2.9 dB typ. at 850 MHz
Applications
•
Broadband Gain Blocks
•
Cordless Phones
•
IF/ RF Buffer Amplifier
•
Drivers for CATV Amplifiers
Units
Min.
Typ.
8.8
8.0
15.5
17.2
15.3
14.0
21.0
1.67:1
1.40:1
21.0
21.2
2.9
3.6
112.0
2.4
2.7
3.0
Max.
dB
12
6
1900
2400
3500
5000
100
500
900
0
Frequency MHz
Symbol
P
1dB
Parameters: Test Conditions:
Z
0
= 50 Ohms, Id = 20 mA, T = 25ºC
Output Power at 1dB Compression
f = 850 MHz
f = 1950 MHz
f = DC - 1000 MHz
f = 1000 - 2000 MHz
f = 2000 - 2800 MHz
f = DC - 2800 MHz
f = DC - 2800 MHz
f = DC - 2800 MHz
f = 850 MHz
f = 1950 MHz
f = DC - 1000 MHz
f = 1000 - 2400 MHz
f = 1000 MHz
dB m
dB m
dB
dB
dB
dB
-
-
dB m
dB m
dB
dB
pS
V
S
21
S
12
S
11
S
22
IP
3
NF
T
D
V
D
Small Signal Gain
Reverse Isolation
Input VSWR
Output VSWR
Third Order Intercept Point
Noise Figure
Group Delay
Device Voltage
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 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. Stanford Microdevices does not authorize or warrant any Stanford
Microdevices product for use in life-support devices and/or systems.
Copyright 1999 Stanford Microdevices, Inc. All worldwide rights reserved.
522 Almanor Ave., Sunnyvale, CA 94086
Phone: (800) SMI-MMIC
http://www.stanfordmicro.com
Doc # EDS-100627 Rev. A
STANFORD [ STANFORD MICRODEVICES ]
