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
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.
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
SGA1263Z
DCto4000MHz SILICON GERMANIUM HBT
CASCADABLE GAIN BLOCK
RFMD’s SGA1263Z is a Silicon Germanium HBT Heterostructure Bipolar
Transistor (SiGe HBT) amplifier that offers excellent isolation and flat gain
response for application to 4GHz. This RFIC is a 2-stage design that pro-
vides high isolation of up to 40dB at 2GHz and is fabricated using the lat-
est SiGe HBT 50GHz FT process, featuring one-micron emitters with
VCEO>7V. These unconditionally stable amplifiers have less than 1dB gain
drift over 125°C operating range (-40°C to +85°C) and are ideal for use
as buffer amplifiers in oscillator applications covering
cellular, ISM, and narrowband PCS bands.
-80
-60
-40
-20
0
100
500
900
1900
2400
3500
6000
dB
Frequency MHz
Isolation vs. Frequency
DCto4000MHz Operation
Single Supply Voltage
Excellent Isolation, >50dB at
900MHz
50 In/Out, Broadband
Match for Operation from DC-
4GHz
Unconditionally Stable
Applications
Buffer Amplifier for Oscillator
Applications
Broadband Gain Blocks
IF Amp
DS111011
Package: SOT-363
SGA1263Z
DCto 4000MH
z Silicon Ger-
manium HBT
Cascadable
Gain Block
Parameter Specification Unit Condition
Min. Typ. Max.
Small Signal Gain 15 17 19 dB 850 MHz
12 15 17 dB 1950MHz
Output Power at 1dB Compression -13.0 -9.5 dBm 1950MHz
Output Third Order Intercept Point -1.5 1.0 dBm 1950MHz
Determined by Return Loss (<-10dB) MHz
Input Return Loss 9.5 11.2 dB 1950MHz
Output Return Loss 7 8 dB 1950MHz
Noise Figure 2.5 4.0 dB 1950MHz
Device Voltage 2.5 2.8 3.1 V
Thermal Resistance 255 °C/W
Test Conditions: VS=5V, ID=8mA Typ., OIP3 Tone Spacing=1MHz, POUT per tone=-20dBm, RBIAS=270, TL=25°C, ZS=ZL=50