SGA-4263 Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – DC-3500 MHZ CASCADABLE SIGE HBT MMIC AMPLIFIER

Product Description
Stanford Microdevices’ SGA-4263 is a high performance
SiGe Heterojunction Bipolar Transistor MMIC Amplifier. A
Darlington configuration featuring 1 micron emitters provides
high F_T and excellent thermal perfomance. The heterojunction
increases breakdown voltage and minimizes leakage current
between junctions. Cancellation of emitter junction non-
linearities results in higher suppression of intermodulation
products. At 850 Mhz and 45mA , the SGA-4263 typically
provides +29.3 dBm output IP3, 13.7 dB of gain, and +14.2
dBm of 1dB compressed power using a single positive
voltage supply. Only 2 DC-blocking capacitors, a bias
resistor and an optional RF choke are required for operation.
Gain & Return Loss vs. Frequency
V_D= 3.2 V, I_D= 45 mA (Typ.)
16
0
GAIN
12
-10
8
ORL
-20
IRL
4
-30
0
-40
0
1
2
3
4
5
6
Frequency (GHz)
Preliminary
SGA-4263
DC-3500 MHz, Cascadable
SiGe HBT MMIC Amplifier
Product Features
• High Gain : 12.7 dB at 1950 MHz
• Cascadable 50 Ohm
• Patented SiGe Technology
• Operates From Single Supply
• Low Thermal Resistance Package
Applications
• Cellular, PCS, CDPD
• Wireless Data, SONET
• Satellite
Symbol
Parameter
G
Small Signal Gain
P_1dB Output Power at 1dB Compression
OIP₃
Output Third Order Intercept Point
(Power out per tone = -5dBm)
Bandwidth Determined by Return Loss (<-10dB)
IRL Input Return Loss
ORL Output Return Loss
NF Noise Figure
V_D
Device Voltage
R_Th
Thermal Resistance
Test Conditions:
V_S = 8 V
R_BIAS = 110 Ohms
I_D = 45 mA Typ.
T_L = 25ºC
Units Frequency Min. Typ. Max.
dB
dB
dB
dBm
dBm
dBm
dBm
MHz
dB
850 MHz
1950 MHz
2400 MHz
850 MHz
1950 MHz
850 MHz
1950 MHz
1950 MHz
12.3
13.7
12.7
12.4
14.2
12.5
29.3
25.7
3500
31.3
15.1
dB
1950 MHz
13.8
dB
1950 MHz
3.7
V
2.9
3.2
3.5
°C/W
255
OIP₃ Tone Spacing = 1 MHz, Pout per tone = -5 dBm
Z_S = Z_L = 50 Ohms
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 2000 Stanford Microdevices, Inc. All worldwide rights reserved.
726 Palomar Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
1
http://www.stanfordmicro.com
EDS-100640 Rev. B