GPS Low Noise Amplifier
1.5 - 1.7 GHz
Features
•
•
•
•
•
•
High Gain: 20 dB
Low Noise Figure: 1.5 dB
Good 50
Ω
Input / Output Match
Single +3 V to +5 V Bias
Adjustable Current
Low Cost Plastic SOT-26 Package
MAALSS0027
V1
Functional Schematic
VDD 1
VDD 2
Description
M/A-COM’s MAALSS0027 is a GaAs MMIC low
noise amplifier in a low-cost SOT-26 surface mount
plastic package. It employs a monolithic 2-stage
design featuring a convenient 50-ohm input/output
impedance that minimizes the number of external
components required.
The MAALSS0027 is optimized for the GPS
frequency of 1.575 GHz. It operates with a single 3
volt to 5 volt supply and has an off chip resistor that
can be used to improve the linearity performance.
The MAALSS0027 is fabricated using M/A-COM’s
E/D process to realize low noise and high dynamic
range. The process features full passivation for
increased performance and reliability.
GND
RF OUT
RF IN
GND
Pin Configuration
Pin
1
2
3
4
Pin Name
V
DD1
GND
RF IN
GND
RF OUT
V
DD2
Description
Stage 1 Voltage
Ground
RF input
Ground
RF output
Stage 2 Voltage
Ordering Information
Part Number
MAALSS0027
MAALSS0027TR-3000
MAALSS0027SMB
5
6
Package
Bulk Packaging
3000 piece reel
Sample Test Board
Absolute Maximum Ratings
1,2
Parameter
Input Power
Operating Voltage
Operating Temperature
Storage Temperature
Absolute Maximum
+8 dBm
+6 Volts
-40°C to +85°C
-40°C to +150°C
Note: Reference Application Note M513 for reel size
information.
1. Exceeding any one or combination of these limits may cause
permanent damage to this device.
2. M/A-COM does not recommend sustained operation near
these survivability limits.
1
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
GPS Low Noise Amplifier
1.5 - 1.7 GHz
Electrical Specifications: T
A
= 25°C, V
DD
= 3 V, Z
0
= 50
Ω
Parameter
Gain
Noise Figure
Input Return Loss
Output Return Loss
Output 1 dB Compression
Output IP3
Reverse Isolation
Current
MAALSS0027
V1
Test Conditions
1.575 GHz
1.575 GHz
1.575 GHz
1.575 GHz
1.575 GHz
-28 dBm Input Power, 1 MHz tone separation
1.575 GHz
1.575 GHz
—
Units
dB
dB
dB
dB
dBm
dBm
dB
mA
Min
17
—
—
—
—
12
—
—
Typ
20
1.5
15
15
8.5
17
34
9.5
Max
22
1.9
—
—
—
—
—
16
SOT-26 Plastic Package
Operating the MAALSS0027
To operate the device, follow these steps:
1. Ramp V
DD
to desired voltage, typically 3 to 5 V.
2. Set RF input.
3. Power down in reverse sequence.
Handling Procedures
Please observe the following precautions to avoid
damage:
Static Sensitivity
Gallium Arsenide Integrated Circuits are sensitive
to electrostatic discharge (ESD) and can be
damaged by static electricity. Proper ESD control
techniques should be used when handling these
devices.
2
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
GPS Low Noise Amplifier
1.5 - 1.7 GHz
Application Schematic
MAALSS0027
V1
Recommended Tuning for 1.575 GHz
Item
Description
27 pF Capacitor,
0402 Package, 5%
1.5 pF Capacitor,
0402 Package, 5%
0.1 µF Capacitor,
0402 Package, 5%
10 pF Capacitor,
0402 Package, 5%
12 nH Inductor,
0402 Package, 2%
3.9 nH Inductor,
0402 Package, 2%
23.7 KOhm Resistor,
0402 Package, 1%
Manufacturer
Murata
Murata
Murata
Murata
Coilcraft
Coilcraft
Panasonic
V
DD1
C3
V
DD2
C5
C1
V
DD
C2
R1
GND
RF
OUT
C4
RF
IN
C1
C2
L2
RF
OUT
C3,C5
C4
L1
L2
L1
RF
IN
GND
Recommended PCB Configuration
R1
3
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
GPS Low Noise Amplifier
1.5 - 1.7 GHz
Typical Performance Curves
Broadband Gain and Return Loss @ 3 Volts
25
20
15
10
5
0
-5
-10
-15
-20
0.0
0.5
1.0
1.5
2.0
2.5
3.0
S21
S11
S22
MAALSS0027
V1
Broadband Gain and Return Loss @ 5 Volts
25
20
15
10
5
0
-5
-10
-15
-20
0.0
0.5
1.0
1.5
2.0
2.5
3.0
S21
S11
S22
Frequency (GHz)
Frequency (GHz)
S21 @ 3 Volts
24
+25°C
-40°C
+85°C
S21 @ 5 Volts
24
22
22
20
20
18
18
+25°C
-40°C
+85°C
16
1.50
1.55
1.60
1.65
1.70
16
1.50
1.55
1.60
1.65
1.70
Frequency (GHz)
Frequency (GHz)
Noise Figure @ 3 Volts
4
+25°C
-40°C
+85°C
Noise Figure @ 5 Volts
4
+25°C
-40°C
+85°C
3
3
2
2
1
1
0
1.50
1.55
1.60
1.65
1.70
0
1.50
1.55
1.60
1.65
1.70
Frequency (GHz)
4
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
Frequency (GHz)
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
GPS Low Noise Amplifier
1.5 - 1.7 GHz
Typical Performance Curves
S11 @ 3 Volts
0
+25°C
-40°C
+85°C
MAALSS0027
V1
S11 @ 5 Volts
0
+25°C
-40°C
+85°C
-5
-10
-15
-20
-25
-30
1.50
-5
-10
-15
-20
-25
-30
1.50
1.55
1.60
1.65
1.70
1.55
1.60
1.65
1.70
Frequency (GHz)
Frequency (GHz)
S22 @ 3 Volts
0
S22 @ 5 Volts
0
+25°C
-40°C
+85°C
-5
-10
-15
-20
-25
-30
1.50
+25°C
-40°C
+85°C
-5
-10
-15
-20
-25
-30
1.50
1.55
1.60
1.65
1.70
1.55
1.60
1.65
1.70
Frequency (GHz)
Frequency (GHz)
S12 @ 3 Volts
0
+25°C
-40°C
+85°C
S12 @ 5 Volts
0
+25°C
-40°C
+85°C
-10
-10
-20
-20
-30
-30
-40
1.50
1.55
1.60
1.65
1.70
-40
1.50
1.55
1.60
1.65
1.70
Frequency (GHz)
5
M/A-COM Inc. and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice. M/A-COM makes
no warranty, representation or guarantee regarding the suitability of its
products for any particular purpose, nor does M/A-COM assume any liability
whatsoever arising out of the use or application of any product(s) or
information.
Frequency (GHz)
•
North America
Tel: 800.366.2266 / Fax: 978.366.2266
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
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