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
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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
2 of 6 DS111011
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
SGA1263Z
Absolute Maximum Ratings
Parameter Rating Unit
Max Device Current (ID) 20 mA
Max Device Voltage (VD) 5 V
Max RF Input Power -12 dBm
Max Junction Temperature (TJ) +150 °C
Operating Temperature Range (TL) -40 to +85 °C
Max Storage Temperature +150 °C
Operation of this device beyond any one of these limits may cause permanent dam-
age. For reliable continuous operation, the device voltage and current must not
exceed the maximum operating values specified in the table on page one.
Bias Conditions should also satisfy the following expression:
IDVD<(T
J-TL)/RTH, j-l
Parameter Specification Unit Condition
Min. Typ. Max.
Bandwidth T=25°C
Frequency Range DC 4000 MHz
Device Bias T=25°C
Operating Voltage 2.8 V
Operating Current 8 mA
500MHz T=25°C
Gain 16.0 dB
Noise Figure 2.7 dB
Output IP3 4.0 dBm
Output P1dB -6.9 dBm
Input Return Loss 8.5 dB
Isolation 61.6 dB
850MHz T=25°C
Gain 15.7 dB
Noise Figure 2.7 dB
Output IP3 2.6 dBm
Output P1dB -7.8 dBm
Input Return Loss 8.9 dB
Isolation 48.4 dB
1950 MHz T=25°C
Gain 14.7 dB
Noise Figure 3.0 dB
Output IP3 2.8 dBm
Output P1dB -7.4 dBm
Input Return Loss 8.8 dB
Isolation 35.6 dB
2400 MHz T=25°C
Gain 14.2 dB
Noise Figure 2.8 dB
Output IP3 0.2 dBm
Output P1dB -7.0 dBm
Input Return Loss 8.4 dB
Isolation 33.6 dB
Caution! ESD sensitive device.
Exceeding any one or a combination of the Absolute Maximum Rating conditions may
cause permanent damage to the device. Extended application of Absolute Maximum
Rating conditions to the device may reduce device reliability. Specified typical perfor-
mance or functional operation of the device under Absolute Maximum Rating condi-
tions is not implied.
The information in this publication is believed to be accurate and reliable. However, no
responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any
infringement of patents, or other rights of third parties, resulting from its use. No
license is granted by implication or otherwise under any patent or patent rights of
RFMD. RFMD reserves the right to change component circuitry, recommended appli-
cation circuitry and specifications at any time without prior notice.
RFMD Green: RoHS compliant per EU Directive 2002/95/EC, halogen free
per IEC 61249-2-21, < 1000ppm each of antimony trioxide in polymeric
materials and red phosphorus as a flame retardant, and <2% antimony in
solder.
3 of 6DS111011
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
SGA1263Z
Application Schematic for +5V Operation at 900MHz
Application Schematic for +5V Operation at 1900MHz
Pin Function Description
1GND
Connection to ground. Use via holes for best performance to reduce lead inductance as close to ground leads as possi-
ble.
2GND
Same as Pin 1.
3RF IN
RF input pin. This pin requires the ise of an external DC blocking capacitor chosen for the frequency of operation.
4VCC
Supply Connection. This pin should be bypassed with suitable capacitor(s).
5GND
Same as Pin 1.
6RF OUT
RF output and bias pin. DC voltage is present on this pin, therefore a DC blocking capacitor is necessary for proper oper-
ation.
270 Ω
100pF
1uF 68pF
100pF
50 Ω
microstrip
50 Ω
microstrip
VCC=+5V
3
4
6
1,2,5
Note: A bias resistor is needed for
stability over temperature
270 Ω
68pF
1uF 22pF
68pF
50 Ω
microstrip
50 Ω
microstrip
VCC=+5V
3
4
6
1,2,5
Recommended Bias Resistor Values
Supply
Voltage(Vs) 3.6V 5V 7.5V 9V 12V
Rbias
(Ohms) 100 275 588 775 1150
4 of 6 DS111011
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
SGA1263Z
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6
12
18
24
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S21, Id =8 mA, T=+25C
dB
Frequency MHz
dB
dB dB
Frequency MHz
S12, Id =8 mA, T=+25C
S22, Id =8 mA, T=+25C
Frequency MHz
Frequency MHz
S11, Id =8 mA, T=+25C
S11, Id=8 mA, Ta= +25C S22, Id=8 mA, Ta= +25C
Freq. Min = 0.1 GHz
Freq. Max = 6.0 GHz Freq. Min = 0.1 GHz
Freq. Max = 6.0 GHz
5 of 6DS111011
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
SGA1263Z
Package Dimensions
Pad Layout
Dimensions in inches [millimeters]
RF
OUT
RF
I N
Notes:
1. Provide a large ground pad area under device
pins 1, 2, 4, & 5 with many plated via holes as
shown.
2. Dimensions given for 50 Ohm RF I/O lines are for
31 mil thick Getek. Scale accordingly for different
board thicknesses and dielectric contants.
3. We recommend 1 or 2 ounce copper. Measure-
ments for this data sheet were made on a 31 mil
thick Getek with 1 ounce copper on both sides.
6 of 6 DS111011
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
SGA1263Z
Part Identification Marking
Ordering Information
Ordering Code Description
SGA1263Z 7" Reel with 3000 pieces
SGA1263ZSQ Sample bag with 25 pieces
SGA1263ZSR 7” Reel with 100 pieces
SGA1263Z-EVB1 850MHz, 5V Operation PCBA
1 2 3
6 5 4