MAALSS0048 Datasheet, PDF (6/8 Pages) Tyco Electronics – Low Noise Amplifier 1400 - 2000 MHz

Low Noise Amplifier
1400 - 2000 MHz
Data for 1400 - 1520 MHz Operation
Functional Schematic
VDD
L2
C2
RF
Input
C1
L3
1
L1
6
3
2,4
5
RF
Output
R1
C3
(See note 10)
Recommended PCB Configuration
Layout View
RoHS
Compliant
MAALSS0048
V2
External Circuitry Parts List⁹
Part
C1
C2
L1
L2
L3
R1
C3
Value
47 pF
470 pF
10 nH
3.9 nH
22 nH
See note 10
470 pF
Purpose
DC Block
By-Pass
Tuning
Tuning
RF Choke
Current control
By-Pass
9. All external circuitry parts are readily available, low cost
surface mount components (.060 in. x .030 in. or .080 in.
x .050 in.)
10. Pin 5 allows use of an external resistor to ground for
optional, higher current.
For IDD ~ 5 mA, R1 = 150 ohms;
IDD ~ 6.5 mA, R1 = 120 ohms;
IDD ~ 20 mA, R1 = 27 ohms.
Cross Section View
Pin 1
The PCB dielectric between RF traces and RF ground layers
should be chosen to reduce RF discontinuities between 50 Ohm
lines and package pins. M/A-COM recommends an FR-4 di-
electric thickness of 0.008” (0.20 mm) yielding a 50 Ohm line
width of 0.015” (0.38 mm). The recommended RF metalization
thickness is 1 ounce copper.
6
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information.
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