Product Description
Sirenza Microdevices SGA-6486 is a high performance SiGe
HBT 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 80mA , the SGA-
6486 typically provides +35 dBm output IP3, 19.7 dB of gain,
and +20.2 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
= 5.1 V, I
D
= 75 mA (Typ.)
SGA-6486
DC-4500 MHz, Cascadable
SiGe HBT MMIC Amplifier
Product Features
High Gain : 16.4 dB at 1950 MHz
Cascadable 50 Ohm
Patented SiGe Technology
24
18
Gain (dB)
GAIN
0
-10
-20
-30
Return Loss (dB)
Operates From Single Supply
Low Thermal Resistance Package
12
6
0
0
1
ORL
IRL
Applications
PA Driver Amplifier
Cellular, PCS, GSM, UMTS
IF Amplifier
Wireless Data, Satellite
Units
dB
dBm
dBm
M Hz
dB
dB
dB
V
mA
°C/W
1950 M Hz
1950 M Hz
1950 M Hz
4.7
67
Frequency
850 M Hz
1950 M Hz
2400 M Hz
850 M Hz
1950 M Hz
850 M Hz
1950 M Hz
Min.
18.0
Ty p.
19.7
16.4
14.8
20.2
18.5
35.0
32.0
4500
21.4
18.0
3.3
5.1
75
97
5.5
83
Max.
22.0
T
L
=+25ºC
-40
2
3
Frequency (GHz)
4
5
Sy mbol
G
P
1dB
OIP
3
Parameter
Small Signal Gain
Output Pow er at 1dB Compression
Output Third Order Intercept Point
Bandw idth
Determined by Return Loss (>10dB)
IRL
ORL
NF
V
D
I
D
R
TH
, j-l
Input Return Loss
Output Return Loss
Noise Figure
Device Operating Voltage
Device Operating Current
Thermal Resistance (junction to lead)
V
S
= 8 V
R
BIAS
= 39 Ohms
I
D
= 75 mA Typ.
T
L
= 25ºC
Test Conditions:
OIP
3
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. Sirenza Microdevices assumes no responsibility for inaccuracies or omissions. Sirenza 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. Sirenza Microdevices does not authorize or warrant any Sirenza Microdevices product for use in life-support devices and/or systems. Copyright 2001 Sirenza Microdevices, Inc..
All worldwide rights reserved.
522 Almanor Ave., Sunnyvale, CA 94085
Phone: (800) SMI-MMIC
1
http://www.sirenza.com
EDS-100615 Rev D
STANFORD [ STANFORD MICRODEVICES ]
