SGC-6489Z
50MHz to
3500MHz Sili-
con Germa-
nium Active
Bias Gain
SGC-6489Z
Block
50MHz to 3500MHz SILICON GERMANIUM
ACTIVE BIAS GAIN BLOCK
NOT FOR NEW DESIGNS
Package: SOT-89
Product Description
Features
RFMD’s SGC-6489Z is a high performance SiGe HBT MMIC amplifier utiliz-
ing a Darlington configuration with an active bias network. The active bias
network provides stable current over temperature and process Beta varia-
tions. Designed to run directly from a 5V supply, the SGC-6489Z does not
require a dropping resistor as compared to traditional Darlington amplifi-
ers. The SGC-6489Z product is designed for high linearity 5V gain block
applications that require small size and minimal external components. It is
internally matched to 50.
Single Supply Operation: 5V
at I = 85mA
D
No Dropping Resistor
Required
Patented Self Bias Circuitry
Gain = 19.5dBm at 1950MHz
P1dB = 19.2dBm at
1950MHz
Optimum Technology
Gain and Return Loss
Matching® Applied
V
D = 5V, ID = 85mA
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
30.0
20.0
10.0
0.0
IP3 = 32.8dBm at 1950MHz
Robust 1000V ESD, Class 1C
HBM
S21
Bias Tee Data, ZS = ZL = 50 , TL
Applications
S22
-10.0
-20.0
-30.0
-40.0
PA Driver Amplifier
Cellular, PCS, GSM, UMTS
IF Amplifier
S11
Si BJT
GaN HEMT
InP HBT
Wireless Data, Satellite
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
RF MEMS
LDMOS
Frequency (GHz)
Specification
Parameter
Unit
Condition
Min.
20.7
18.0
Typ.
22.2
19.5
18.3
20.6
19.2
18.4
34.1
32.8
31.4
18
Max.
23.7
21.0
Small Signal Gain
dB
dB
dB
dBm
dBm
dBm
dBm
dBm
dBm
dB
850MHz
1950MHz
2400MHz
850MHz
1950MHz
2400MHz
850MHz
1950MHz
2400MHz
1950MHz
1950MHz
1930MHz
Output Power at 1dB Compression
Output Third Order Intercept Point
17.7
30.8
Input Return Loss
Output Return Loss
Noise Figure
Device Operating Voltage
Device Operating Current
Thermal Resistance
14
8
11
2.4
5
82
dB
dB
V
mA
3.4
94
70
70
°C/W
junction to lead
Test Conditions: V = 5.0V, I = 82mA, T = 25°C, OIP3 Tone Spacing = 1MHz, Bias Tee Data, Z = Z = 50, P per tone = 0dBm
OUT
D
D
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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