Product Description
The SGA-6486 is a high performance SiGe HBT MMIC Ampli-
fier. A Darlington configuration featuring 1 micron emitters
provides high FT 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. Only 2 DC-blocking capacitors, a
bias resistor and an optional RF choke are required for op-
eration.
The matte tin finish on Sirenza’s lead-free package utilizes a
post annealing process to mitigate tin whisker formation and
is RoHS compliant per EU Directive 2002/95. This package
is also manufactured with green molding compounds that
contain no antimony trioxide nor halogenated fire retardants.
Gain & Return Loss vs. Frequency
SGA-6486
SGA-6486Z
Pb
RoHS Compliant
&
Green
Package
DC-4500 MHz, Cascadable
SiGe HBT MMIC Amplifier
Product Features
• Now available in Lead Free, RoHS
Compliant, & Green Packaging
• High Gain : 16.4 dB at 1950 MHz
• Cascadable 50 Ohm
• Operates From Single Supply
24
18
Gain (dB)
V
D
= 5.1 V, I
D
= 75 mA (Typ.)
0
-10
-20
Return Loss (dB)
• Low Thermal Resistance Package
GAIN
12
6
0
0
1
ORL
IRL
Applications
•
•
•
•
PA Driver Amplifier
Cellular, PCS, GSM, UMTS
IF Amplifier
Wireless Data, Satellite
T
L
=+25ºC
-30
-40
2
3
Frequency (GHz)
4
5
Symbol
G
Parameter
Small Signal Gain
Units
dB
Frequency
850 MHz
1950 MHz
2400 MHz
850 MHz
1950 MHz
850 MHz
1950 MHz
Min.
18.0
Typ.
19.7
16.4
14.8
20.2
18.5
35.0
32.0
4500
Max.
22.0
P
1dB
OIP
3
Output Pow er at 1dB Compression
Output Third Order Intercept Point
dBm
dBm
MHz
dB
dB
dB
V
mA
°C/W
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
1950 MHz
1950 MHz
1950 MHz
4.7
67
21.4
18.0
3.3
5.1
75
97
5.5
83
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 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. 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.
303 Technology Court, Broomfield, CO 80021
Phone: (800) SMI-MMIC
1
http://www.sirenza.com
EDS-100615 Rev F
SIRENZA [ SIRENZA MICRODEVICES ]
