SGA6486ZDC
to 4500MHz,
Cascadable
SiGe HBT
MMIC Ampli-
fier
SGA6486Z
DC to 4500MHz, CASCADABLE SiGe HBT
MMIC AMPLIFIER
Package: SOT-86
Product Description
Features
The SGA6486Z is a high performance SiGe HBT MMIC Amplifier. A Darling-
ton configuration featuring one-micron emitters provides high FT and
High Gain: 16.4dB at
1950MHz
excellent thermal performance. The heterojunction increases breakdown
voltage and minimizes leakage current between junctions. Cancellation of
emitter junction non-linearities results in higher suppression of intermodu-
lation products. Only two DC-blocking capacitors, a bias resistor, and an
optional RF choke are required for operation.
Cascadable 50Ω
Operates from Single Supply
Low Thermal Resistance
Package
Applications
Optimum Technology
Gain & Return Loss vs. Frequency
VD= 5.1 V, ID= 75 mA (Typ.)
Matching® Applied
PA Driver Amplifier
Cellular, PCS, GSM, UMTS
IF Amplifier
24
18
12
6
0
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
GAIN
-10
-20
Wireless Data, Satellite
ORL
IRL
TL=+25ºC
SiGe HBT
-30
GaAs pHEMT
Si CMOS
0
-40
0
1
2
3
4
5
Si BJT
Frequency (GHz)
GaN HEMT
RF MEMS
Specification
Parameter
Unit
Condition
Min.
18.0
Typ.
19.7
16.4
14.8
20.2
18.5
35.0
32.0
4500
Max.
22.0
Small Signal Gain
dB
dB
dB
dBm
dBm
dBm
dBm
MHz
850MHz
1950MHz
2400MHz
850MHz
1950MHz
850MHz
1950MHz
>10dB
Output Power at 1dB Compression
Output Third Intercept Point
Bandwidth Determined by Return
Loss
Input Return Loss
Output Return Loss
Noise Figure
Device Operating Voltage
Device Operating Current
Thermal Resistance
(Junction - Lead)
21.4
18.0
3.3
5.1
75
dB
dB
dB
1950MHz
1950MHz
1950MHz
4.7
67
5.5
83
V
mA
°C/W
97
Test Conditions: V =8V, I =75mA Typ., OIP Tone Spacing=1MHz, P
per tone=0dBm, R
=39Ω, T =25°C, Z =Z =50Ω
S
D
3
OUT
BIAS
L
S
L
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trade-
mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2006, RF Micro Devices, Inc.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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