Specifications Subject to Change Without Notice.
M/A-COM, Inc.
1
North America: Tel. (800) 366-2266
Asia/Pacific: Tel. +81 3 3263-8761
Europe:
Tel. +44 (1344) 869-595
Fax (800) 618-8883
Fax +81 3 3263-8769
Fax +44 (1344) 300-020
an
company
AMP
Low Noise Amplifier
1400 - 2000 MHz
AM50-0006
V2.00
Features
Low Noise Figure: 1.6 dB
High Input IP3: -6 dBm at 3 V, 6.5 mA bias
High Gain: 18 dB
Single Supply: +3 to +8 VDC
Low Cost SOT-26 Miniature Plastic Package
Adjustable current: 3 to 20 mA with an external resistor
Description
M/A-COMs AM50-0006 is a high dynamic range, GaAs MMIC,
low noise amplifier in a low cost, SOT-26 miniature surface mount,
plastic package. It employs external input matching to obtain
optimum noise figure performance and operating frequency
flexibility. The AM50-0006 also features flexible biasing to control
the current consumption vs. dynamic range trade-off.
The
AM50-0006 can operate from any positive supply voltage in the 3 V
to 8 V range. Its current can be controlled over a range of 3 mA to
20 mA with an external resistor.
The AM50-0006 is ideally suited for use where low noise figure,
high gain, high dynamic range, and low power consumption are
required. Typical applications include receiver front ends in PDC-
1500, DCS-1800, DCS-1900, PHS and other PCN/PCS applications.
It is also useful as a gain block, buffer, driver and IF amplifier in both
fixed and portable PDC, PHS, and PCN/PCS systems.
The AM50-0006 is fabricated using a low-cost 0.5-micron gate
length GaAs process. The process features full passivation for
increased performance reliability. The AM50-0006 is 100% RF
tested to ensure performance specification compliance.
SOT-26
.114 .008
2,9 0,2
.002 .002
0,05 0,05
.075 .008
1,90 0,2
.063
1,60
+.008
-.004
+0.20
-0.10
.031
0,79
+.004
-.007
-0.18
+0.10
.016
0,40
-.002
+.004
+0.10
-0.05
.006
0,15 -0.05
+0.10
-.002
+.004
.008 MIN
0,20 MIN
.043
1,10
-.004
+.008
+0.20
-0.10
.110 .008
2,80 0,2
0 2 X Y
PIN # 1
Ordering Information
Part Number
Package
AM50-0006
SOT-26 Plastic Package
AM50-0006TR
Forward Tape and Reel*
AM50-0006PDC
AM50-0006PCS
1400-1520 MHz Designers Kit
1700-2000 MHz Designers Kit
* If specific reel size is required, consult factory for part number
assignment.
Electrical Specifications
1
:
T
A
=+25
C, Z
0
= 50
, P
IN
= - 30 dBm
Parameter
Test Conditions
Units
1500 MHz
1900 MHz
Min.
Typ.
Max.
Min.
Typ.
Max.
Gain
V
DD
= 3 Volts
dB
15
18
20
15
17.5
20
Noise Figure
V
DD
= 3 Volts
dB
1.60
2.00
1.65
2.00
Input VSWR
2.2:1
1.5:1
Output VSWR
1.5:1
1.5:1
Output 1 dB Compression
V
DD
= 3 Volts
dBm
1
0
Input IP3
V
DD
= 3 Volts
dBm
-5.0
-6.0
Reverse Isolation
dB
35
35
Drain current
V
DD
= 3 Volts
mA
4.5
6.5
10
4.5
6.5
10
1. Using external 120
resistor. See functional block diagrams on pages 2 and 5.
Low Noise Amplifier
AM50-0006
V2.00
Specifications Subject to Change Without Notice.
2
M/A-COM, Inc.
North America: Tel. (800) 366-2266
Asia/Pacific: Tel. +81 3 3263-8761
Europe:
Tel. +44 (1344) 869-595
Fax (800) 618-8883
Fax +81 3 3263-8769
Fax +44 (1344) 300-020
Absolute Maximum Ratings
1
Parameter
Absolute Maximum
V
,,
+10 VDC
Input Power
+17 dBm
Current
30 mA
Channel Temperature
!
+150
C
Operating Temperature
-40
C to +85
C
Storage Temperature
-65
C to +150
C
1. Exceeding any one or combination of these limits may
cause permanent damage.
2. When pin #2 is used to increase current. (See note 5.)
3. Thermal resistance (
jc) = +150
C/W.
Functional Block Diagram For
1700-2000 MHz Operation
V
DD
RF IN
RF OUT
C1
L1
L2
C2
R1 (See note 5)
3
4
6
1,5
C3
TRL
in
Recommended PCB Configuration For
1700-2000 MHz Operation
Layout View
PIN # 1
RF OUT
V
DD
RF IN
U1
L2
C2
TRL
C1
L1
C3
R1
Pin Configuration
Pin No.
Pin Name Description
1
GND
RF and DC Ground
2
Rext
Cext
External Current Control
By-Pass Capacitor
3
IN
RF Input of the Amplifier
4
V
,,
Positive Supply Voltage
5
GND
RF and DC Ground
6
OUT
RF Output of the Amplifier
Input Reflection Coefficient
1700-2000 MHz Operation
Freq.
1700 MHz
1850 MHz
2000 MHz
in (mag)
0.699
0.674
0.649
in (ang)
48.47
38.68
29.27
External Circuitry Parts List For
1700-2000 MHz Operation
4
Part
Value
Purpose
C1
47 pF
DC Block
C2
470 pF
By-Pass
L1
2.7 nH
Tuning
L2
22 nH
RF Choke
R1
See Note 5
Current control
C3
470 pF
By-Pass
4. All external circuitry parts are readily available, low cost
surface mount components (.060 in. x .030 in. or .080 in. x
.050 in.).
5. Pin 2 allows use of an external resistor to ground for optional,
higher current.
For I
,,
~ 5 mA, R1 = 150 ohms;
I
,,
~ 6.5 mA, R1 = 120 ohms;
I
,,
~ 20 mA, R1 = 27 ohms.
Cross Section View
RF Traces + Components
RF Ground
DC Routing
Customer Defined
The PCB dielectric between RF traces and RF ground layers
should be chosen to reduce RF discontinuities between 50
lines and package pins. M/A-COM recommends an FR-4
dielectric thickness of 0.008 (0.20 mm) yielding a 50
line
width of 0.015 (0.38 mm). The recommended RF metalization
is 1 ounce copper.
Low Noise Amplifier
AM50-0006
V2.00
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
3
North America:
Tel. (800) 366-2266
Asia/Pacific: Tel. +81 3 3263-8761
Europe:
Tel. +44 (1344) 869-595
Fax (800) 618-8883
Fax +81 3 3263-8769
Fax +44 (1344) 300-020
Typical 1700-2000 MHz Performance Data (when matched at input with
in, see page 2)
Test Conditions: T
)
= +25
C, Z
= 50
, unless otherwise specified.
GAIN vs. FREQUENCY
12
14
16
18
20
22
1.7
1.8
1.9
2.0
2.1
2.2
Frequency (GHz)
Gain
(dB)
5V,20mA
3V,6.5mA
3V,5mA
NOISE FIGURE vs. FREQUENCY (Bias = 3V, 6.5mA)
1.0
1.5
2.0
2.5
1.7
1.8
1.9
2.0
2.1
2.2
Frequency (GHz)
Noise
Figure
(dB)
OUTPUT P1dB vs. FREQUENCY
-5.0
0.0
5.0
10.0
15.0
1.7
1.8
1.9
2.0
Frequency (GHz)
1
d
B
Compression
(dBm)
5V, 20mA
3V, 6.5mA
3V, 5mA
INPUT IP3 vs. FREQUENCY
-10
-5
0
5
10
1.7
1.8
1.9
2.0
Fre qu e ncy (G Hz )
Input
IP3
(dBm)
5V, 20mA
3V, 6.5mA
3V, 5mA
VSWR vs. FREQUENCY (Bias = 3V, 6.5mA)
1.0
1.5
2.0
2.5
3.0
1.7
1.8
1.9
2.0
2.1
2.2
Frequency (GHz)
8594
Output
Input
INPUT IP3 vs. DRAIN CURRENT (Freq. = 1900 MHz)
-10
-5
0
5
10
5
10
15
20
D rain C urre nt (mA)
Input
IP3
(dBm)
5V
3V
Low Noise Amplifier
AM50-0006
V2.00
Specifications Subject to Change Without Notice.
4
M/A-COM, Inc.
North America: Tel. (800) 366-2266
Asia/Pacific: Tel. +81 3 3263-8761
Europe:
Tel. +44 (1344) 869-595
Fax (800) 618-8883
Fax +81 3 3263-8769
Fax +44 (1344) 300-020
Typical 1700-2000 MHz Performance Data cont. (when matched at input with
in, see page 2)
Test Conditions: Bias = 3V, 6.5 mA, Z
= 50
, unless otherwise specified.
GAIN vs. TEMPERATURE
12
14
16
18
20
22
1.7
1.8
1.9
2.0
2.1
2.2
Frequency (GHz)
Gain
(dB)
-40C
+85C
+25C
NOISE FIGURE vs. TEMPERATURE
0.5
1.0
1.5
2.0
2.5
3.0
1.7
1.8
1.9
2.0
2.1
2.2
Fre qu e ncy (G Hz )
Noise
Figure
(dB)
+85C
-40C
+25C
Designers Kit AM50-0006PCS
The AM50-0006 Designer's Kit allows for immediate evaluation
of M/A-COM's AM50-0006 tuned for 1700-2000 MHz operation.
The Designers Kit includes an AM50-0006, an evaluation board,
and a floppy disk containing typical performance data and a DXF
files of the recommended PCB layouts.
The evaluation board consists of the recommended external
surface mount circuitry, RF connectors, and a DC multi-pin
connector, all mounted to a multi-layer FR-4 PCB. The
AM50-0006PCS evaluation PCB is illustrated below with
all functional ports labeled.
AM50-0006PCS EVALUATION BOARD
Evaluation PCB + RF Connector Losses
Port Reference
Approximate RF Loss
LNA Input
0.15 dB @ 1.90 GHz
LNA Output
0.15 dB @ 1.90 GHz
The DC connector on the Designers Kit PCB allows
convenient DC line access. This is accomplished by of the
one or more of the following methods:
1. A mating female multi-pin connector (Newark
Electronics Stock # 46F-4658, not included).
2. Wires soldered to the necessary pins (not included).
3. Clip leads (not included).
Low Noise Amplifier
AM50-0006
V2.00
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
5
North America:
Tel. (800) 366-2266
Asia/Pacific: Tel. +81 3 3263-8761
Europe:
Tel. +44 (1344) 869-595
Fax (800) 618-8883
Fax +81 3 3263-8769
Fax +44 (1344) 300-020
Absolute Maximum Ratings
1
Parameter
Absolute Maximum
V
,,
+10 VDC
Input Power
+17 dBm
Current
30 mA
Channel Temperature
!
+150
C
Operating Temperature
-40
C to +85
C
Storage Temperature
-65
C to +150
C
1. Exceeding any one or combination of these limits may
cause permanent damage.
2. When pin #2 is used to increase current. (See note 5.)
3. Thermal resistance (
jc) = +150
C/W.
Functional Block Diagram For
1400-1520 MHz Operation
C1
L1
R1 (see note 5)
C2
C3
L2
L3
V
DD
RF OUT
RF IN
2
3
6
1,5
4
Recommended PCB Configuration For
1400-1520 MHz Operation
Layout View
L1
C1
L2
L3
C2
C3
R1
V
,,
RF IN
RF OUT
Pin #1
Pin Configuration
Pin No.
Pin Name Description
1
GND
RF and DC Ground
2
Rext
Cext
External Current Control
By-Pass Capacitor
3
IN
RF Input of the Amplifier
4
V
,,
Positive Supply Voltage
5
GND
RF and DC Ground
6
OUT
RF Output of the Amplifier
External Circuitry Parts List For
1400-1520 MHz Operation
4
Part
Value
Purpose
C1
47 pF
DC Block
C2
470 pF
By-Pass
L1
10 nH
Tuning
L2
3.9 nH
Tuning
L3
22 nH
RF Choke
R1
See Note 5
Current control
C3
470 pF
By-Pass
4. All external circuitry parts are readily available, low cost
surface mount components (.060 in. x .030 in. or .080 in. x
.050 in.).
5. Pin 2 allows use of an external resistor to ground for optional,
higher current.
For I
,,
~ 5 mA, R1 = 150 ohms;
I
,,
~ 6.5 mA, R1 = 120 ohms;
I
,,
~ 20 mA, R1 = 27 ohms.
Cross Section View
RF Traces + Components
RF Ground
DC Routing
Customer Defined
The PCB dielectric between RF traces and RF ground layers
should be chosen to reduce RF discontinuities between 50
lines and package pins. M/A-COM recommends an FR-4
dielectric thickness of 0.008 (0.20 mm) yielding a 50
line
width of 0.015 (0.38 mm). The recommended RF metalization
is 1 ounce copper.
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