Features
1 of 6
Optimum Technology
Matching® Applied
GaAs HBT
InGaP HBT
GaAs MESFET
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
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Product Description
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
InP HBT
LDMOS
RF MEMS
SGA5589Z
DC to 4000MHz, CASCADABLE SiGe HBT
MMIC AMPLIFIER
The SGA5589Z is a high performance SiGe HBT MMIC Amplifier. A Darling-
ton configuration featuring one-micron emitters provides high FT and
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.
0
8
16
24
32
0123456
Frequency (GHz)
Gain (dB)
-40
-30
-20
-10
0
Return Loss (dB)
GAIN
IRL
ORL
Gain & Return Loss vs. Frequency
V
D
= 3.9 V, I
D
= 60 mA (Typ.)
High Gain: 20.8dB at
1950MHz
Cascadable 50
Operates from Single Supply
Low Thermal Resistance
Package
Applications
PA Driver Amplifier
Cellular, PCS, GSM, UMTS
IF Amplifier
Wireless Data, Satellite
DS111014
Package: SOT-89
SGA5589ZDC
to 4000MHz,
Cascadable
SiGe HBT
MMIC Ampli-
fier
Parameter Specification Unit Condition
Min. Typ. Max.
Small Signal Gain 21.5 24.0 26.5 dB 850MHz
20.8 dB 1950MHz
18.9 dB 2400MHz
Output Power at 1dB Compression 18.2 dBm 850MHz
16.2 dBm 1950MHz
Output Third Intercept Point 32.9 dBm 850MHz
29.2 dBm 1950MHz
Bandwidth Determined by Return
Loss 4000 MHz >10dB
Input Return Loss 13.7 dB 1950MHz
Output Return Loss 25.2 dB 1950MHz
Noise Figure 3.4 dB 1950MHz
Device Operating Voltage 3.5 3.9 4.3 V
Device Operating Current 54 60 66 mA
Thermal Resistance
(Junction - Lead) 97 °C/W
Test Conditions: VS=8V, ID=60mA Typ., OIP3 Tone Spacing=1 MHz, POUT per tone=0dBm, RBIAS=68, TL=25°C, ZS=ZL=50