Preliminary
Product Description
Stanford Microdevices’ SGA-5486 is a high performance
cascadeable 50-ohm amplifier designed for operation at
voltages as low as 3.5V. 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-5486 requires only DC
blocking and bypass capacitors for external components.
Small Signal Gain vs. Frequency
SGA-5486
DC-2400 MHz Silicon Germanium
HBT Cascadeable Gain Block
24
18
dB
Product Features
•
DC-2400 MHz Operation
•
Single Voltage Supply
•
High Output Intercept: +32.0dBm typ. at 850 MHz
•
Low Current Draw: 60mA at 3.5V typ.
•
Low Noise Figure: 3.0dB typ. at 850 MHz
Applications
•
Oscillator Amplifiers
•
PA for Low Power Applications
•
IF/ RF Buffer Amplifier
•
Drivers for CATV Amplifiers
U nits
f = 850 MHz
f = 1950 MHz
f = D C -1000 MHz
f = 1000-2000 MHz
f = 2000-5000 MHz
f = D C -1000 MHz
f = 1000-2000 MHz
f = 2000-5000 MHz
f = D C -5000 MHz
f = D C -5000 MHz
f = 850 MHz
f = 1950 MHz
f = D C -1000 MHz
f = 1000-2400 MHz
f = 1000 MHz
dB m
dB m
dB
dB
dB
dB
dB
dB
-
-
dB m
dB m
dB
dB
pS
V
mA
3.1
17.5
Min.
Typ.
17.0
15.0
19.7
17.3
13.5
22.5
23.0
18.0
1.50:1
1.50:1
32.0
28.0
3.0
3.5
121.0
3.5
60.0
3.9
Max.
12
6
0
100
500
900
1900
2400
3500
5000
Frequency MHz
Electrical Specifications at Ta = 25C
Symbol
P
1dB
Parameters: Test C onditions:
Z
0
= 50 Ohms, f = D C -2400 MH z
Output Power at 1dB C ompressi on
S
21
Small Si gnal Gai n
S
12
S
11
S
22
IP
3
NF
T
D
V
D
I
D
Reverse Isolati on
Input VSWR
Output VSWR
Thi rd Order Intercept Poi nt
Noi se Fi gure
Group D elay
D evi ce Voltage
D evi ce C urrent
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
EDS-100612 Rev A
STANFORD [ STANFORD MICRODEVICES ]
