AMT2122051P
Data Sheet
Rev. 1.0 February 2007
2.7 – 3.7 GHz Low Noise Amplifier
Features
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
NC
Frequency Range : 2.7 – 3.7GHz
Low Noise Figure < 1.6 dB
23 dB High gain
19 dBm Medium Power output
High IP3
Input Return Loss > 6 dB
Output Return Loss > 10 dB
Single supply operation
No external matching required
DC decoupled input and output
0.15 µm InGaAs pHEMT Technology
QFN Plastic package : 5mm x 5mm x 1mm
32
GND
RF IN
GND
31
30
29
28
27
26
25
1
24
2
23
3
22
4
21
5
20
6
19
7
18
GND
RF OUT
GND
17
8
9
10
11
12
13
14
15
16
GND Vd1 GND Vd2 GND
Typical Applications
Š RADAR
Š Military & space
Š VSAT
Description
The ASTRA 2122051P is S-band Low noise amplifier available in a low-cost QFN
package for surface mount applications. The LNA uses 2 stages of amplification and
operates in 2.7 – 3.7 GHz frequency range. The LNA features 23 dB of gain with a low
noise figure of 1.6 dB and typical input and output return losses of 6 dB and 10 dB
respectively. The LNA is unique in delivering a medium power output of 19 dBm. This
feature enables it to be used in high gain applications with enhanced linearity
requirements. The chip operates from a single positive supply voltage.
Absolute Maximum Ratings (1)
Parameter
Drain bias voltage (Vd)
RF input power (RFin at Vd=4V)
Operating temperature
Storage Temperature
Absolute Maximum
+6
18
-50 to +85
-65 to +150
Units
volts
dBm
o
C
o
C
1. Operation beyond these limits may cause permanent damage to the component
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
Page 1 of 8
Email: info@astramtl.com
URL: www.astramtl.com
AMT2122051P
Data Sheet
Rev. 1.0 February 2007
Electrical Specifications (1) @ TA = 25 oC, Vd1 = 3V, Vd2 = 4V Zo =50 Ω
Parameter
Frequency Range
Typ.
Units
2.7 – 3.1
3.1 – 3.5
2.7 - 3.7
GHz
23
23.75
23.5
dB
± 0.25
± 0.4
± 0.6
dB
1.4
1.6
1.6
dB
Input Return Loss (min.)
5
11
5
dB
Output Return Loss (min.)
15
12
9
dB
Output Power (P1 dB)
18
19
18
dBm
Saturated output power (Psat)
-
21
-
dBm
Output Third Order Intercept (IP3)
-
30
-
dBm
Supply Current
-
110
-
mA
Gain
Gain Flatness
Noise Figure (max.)
Note:
1. Electrical specifications are measured in a test fixture.
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
Page 2 of 8
Email: info@astramtl.com
URL: www.astramtl.com
AMT2122051P
Data Sheet
Rev. 1.0 February 2007
Test fixture data
Vd1 = 3V, Vd2 = 4V, Total Current = 110mA, TA = 25 oC
Gain
26
25
24
Gain (dB)
23
22
21
20
19
18
17
16
2.7
2.8
2.9
3
3.1
3.2 3.3 3.4 3.5
Frequency (GHz)
3.6
3.7
3.8
3.9
4
Noise Figure
2
1.75
NF (dB)
1.5
1.25
1
0.75
0.5
2.7
2.8
2.9
3
3.1
3.2 3.3 3.4 3.5
Frequency (GHz)
3.6
3.7
3.8
3.9
4
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
Page 3 of 8
Email: info@astramtl.com
URL: www.astramtl.com
AMT2122051P
Data Sheet
Rev. 1.0 February 2007
Test fixture data
Vd1 = 3V, Vd2 = 4V, Total Current = 110mA, TA = 25 oC
Return Losses
0
-2
-4
S11
S11 & S22 (dB)
-6
-8
-10
-12
-14
S22
-16
-18
-20
2.7
2.8
2.9
3
3.1
3.2 3.3 3.4 3.5
Frequency (GHz)
3.6
3.7
3.8
3.6
3.7
3.8
3.9
4
Isolation
-20
-25
Isolation (dB)
-30
-35
-40
-45
-50
-55
-60
2.7
2.8
2.9
3
3.1
3.2 3.3 3.4 3.5
Frequency (GHz)
3.9
4
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
Page 4 of 8
Email: info@astramtl.com
URL: www.astramtl.com
AMT2122051P
Data Sheet
Rev. 1.0 February 2007
Test fixture data
Vd1 = 3V, Vd2 = 4V, Total Current = 110mA , TA = 25 oC
Output power at 1dB compression @ 3.3GHz
30
25
Gain (dB) & Pt (dBm)
-2.2dBm
23.1dB
-30dBm
24.1dB
20
-2.2dBm
21dBm
15
10
5
0
P1dB = 21dBm
-5
-10
-30
-27
-24
-21
-18
-15
-12
-9
-6
-3
0
Input Power (dBm)
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
Page 5 of 8
Email: info@astramtl.com
URL: www.astramtl.com
AMT2122051P
Data Sheet
Rev. 1.0 February 2007
Pin Configuration
26
27
28
29
30
31
32
NC
NC
NC
NC
NC
NC
NC
NC
24
1
23
2
22
3
21
4
20
5
19
6
18
7
17
8
GND
RF OUT
GND
25
16
15
GND
14
Vd2
13
12
GND
11
10
Vd1
GND
RF IN
GND
9
GND
Pin Designations
Symbol
GND
RF IN
RF OUT
Vd1
Vd2
NC
Pin No.
1,2,3,5,6,7,8,9,10,12,13,15,16,17,18,19,20,21,23,24
4
22
11
14
25,26,27,28,29,30,31,32
Description
Grounded
RF Input
RF Output
1st Stage drain voltage
2nd Stage drain voltage
No Connection
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
Page 6 of 8
Email: info@astramtl.com
URL: www.astramtl.com
AMT2122051P
Data Sheet
Rev. 1.0 February 2007
Test Board Pattern
GND
GND
RFout
RFin
GND
GND
0.1uF
0.1uF
Vd1
GND
Vd2
QFN mounted on test pattern
List of components
Capacitor value
0.1µF
Reference
0603
Note:
1.
2.
Input and output 50 ohm lines are on 10 mil RT duroid substrate
0.1 µF capacitors may be additionally used as a second level of bypass for reliable
operation
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
Page 7 of 8
Email: info@astramtl.com
URL: www.astramtl.com
AMT2122051P
Data Sheet
Rev. 1.0 February 2007
QFN package outline
All units are in millimeters
GaAs MMIC devices are susceptible to Electrostatic discharge.
Proper precautions should be observed during handling,
assembly & testing
All information and Specifications are subject to change without prior notice
Astra Microwave Products Limited, Hyderabad, INDIA
Phone: +91-40-30618000
Fax: +91-40-30618048
Page 8 of 8
Email: info@astramtl.com
URL: www.astramtl.com