SGA-6489 Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – DC 3500 MHZ CASCADABLE SIGE HBT MMIC AMPLIFIER

Product Description
Stanford Microdevices’ SGA-6489 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 75mA , the SGA-6489 typically provides +33.4 dBm
output IP3, 20.1 dB of gain, and +20.7 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. Freq. @T_L=+25°C
25
0
GAIN
-6
20
ORL
-12
15
-18
IRL
-24
10
-30
5
-36
0
1
2
3
4
5
Frequency (GHz)
Symbol
Parameter
G
Small Signal Gain
P_1dB Output Power at 1dB Compression
OIP₃
Output Third Order Intercept Point
(Power out per tone = 0dBm)
Bandwidth Determined by Return Loss (<-10dB)
IRL Input Return Loss
ORL Output Return Loss
SGA-6489
DC-3500 MHz, Cascadable
SiGe HBT MMIC Amplifier
Product Features
• High Gain : 17.5 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
Units
dB
dB
dB
dBm
dBm
dBm
dBm
MHz
dB
dB
Frequency
850 MHz
1950 MHz
2400 MHz
850 MHz
1950 MHz
850 MHz
1950 MHz
1950 MHz
1950 MHz
Min.
18.4
Typ.
20.1
17.5
16.5
20.7
18.7
33.4
31.3
3500
14.4
10.4
Max.
22.4
NF Noise Figure
dB
1950 MHz
3.0
V_D
Device Voltage
R_Th
Thermal Resistance
Test Conditions:
V_S = 8 V
R_BIAS = 39 Ohms
I_D = 75 mA Typ.
T_L = 25ºC
V
4.7
5.1
5.5
97
OIP₃ Tone Spacing = 1 MHz, Pout per tone = 0 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-100621 Rev. C