MAAM12022 MA-COM [M/A-COM Technology Solutions, Inc.], MAAM12022 Datasheet - Page 4

• Manufacturer Part Number: MAAM12022
• Description: GaAs MMIC Low Noise Amplifier SOIC-8 Platform
• Manufacturer: MA-COM [M/A-COM Technology Solutions, Inc.]

4
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GaAs MMIC Low Noise Amplifier SOIC-8 Platform
Application Note
M540
Table 1. One-time Product Qualification
Procedure
MMIC LNA Product Customer Use
Considerations
The SOIC-8 MMIC LNAs are fairly straightforward to use.
By following some basic design considerations, the
performance in the data sheet is easily achieved. The
following sections discuss the electrical (DC and RF),
manufacturing,
customer must keep in mind for proper use of these
MMIC LNAs.
Sub
Lot
G
G
A
A
A
B
B
C
C
D
D
E
F
Physical Dimensions
Temperature Cycle
ESD Classification
High Temperature
Visual Inspection
Infrared Reflow
Operation Bias
Electrical Test
Electrical Test
Electrical Test
Electrical Test
Electrical Test
Resistance to
Sub Lot Split
Sub Lot Split
Operation
Simulation
Autoclave
Electrical
Solvents
DPA
and
reliability
+150°C 30 min dwell
100% of dimensions
total of 180 seconds
96 hrs 100% RH 15
ATP at -40,25,80°C
coplanarity < 4 mils
35 seconds above
235°C max 245°C
150°C for 600 hrs
200 cycles -55 to
MIL-STD-3015
MIL-STD-2015
ATP at +25°C
ATP at +25°C
ATP at +25°C
ATP at 25°C
ATP at 25°C
-40,25,80°C
-40,25,80°C
Condition
at extremes
REL-002
General
considerations
psi
Qty.
500
500
392
392
300
280
40
20
76
76
96
76
20
22
22
6
4
the
Customer Electrical Considerations
These MMIC LNAs were designed to be used on low cost
FR4 printed circuit boards. Before discussing the proper
board layout, an understanding of each of the pins of the
LNA family is necessary. All the products of the MMIC
LNA family have the same pin assignments, shown
previously in Figure 7, except for the AM50-0002, which
will be discussed separately below. Pins 1, 4, 5, an 8 are
DC and RF ground. Pins 3 and 6 are RF
respectively. Pin 7 is V
an optional bias control pin.
operation, no external connection is made to pin 2.
An important consideration is the off-chip components
used for DC biasing, Pin 7, the V
passed with a 500-pF surface mount MLC capacitor
mounted as close as possible to the pin. RF decoupling
of the power supply with a chip inductor of at least 15 nH
is recommended. Pin 2 is a parallel connection to the first
stage FET source resistor and is normally left open.
Connecting a chip resistor from pin 2 to ground will
increase the current draw and extend the dynamic range
of the LNAs as shown on the data sheets and discussed
below in the product applications section. For the low
gain MAAM12022, MAAM12032, and MAAM22010,
connecting a 30-35 ohm resistor from pin 2 to ground will
increase the current 20 mA from nominal 5 mA. For the
high gain MAAM12021 and MAAM12031, connecting a
35-40 ohm resistor from pin 2 to ground will increase the
current to 20 mA from the nominal 8 mA. For the higher
current AM50-0001, a resistor ranging from 10-40 ohms
can be used. For each of these six LNAs, care must be
taken so the maximum current rating on the data sheet is
not exceeded.
The AM50-0002 has DC and RF ground pins everywhere
except for pin 2, RF
and V
AM50-0002 requires a simple low loss external input
matching network. Figure 8 shows the functional diagram
of the AM50-0002 and details the requirements of the
matching network at 1.575 GHz.
If the system does not provide the bias (V
output line, the bias can be coupled to the RF output line
using a simple bias tee network. Please note that the
AM50-0002 has no optional bias pin.
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DD
.
To realize minimum noise performance, the
IN
, and pin 6, which is both the RF
DD
, a positive voltage, and pin 2 is
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For nominal current
DD
pin, must be by-
DD
IN
) on the RF
and RF
Rev. V3
OUT
OUT
,