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SiGe, High-Linearity, 2300MHz to 4000MHz
Upconversion/Downconversion Mixer with LO Buffer
Exposed Pad RF/Thermal Considerations
The exposed pad (EP) of the MAX2044’s 20-pin thin
QFN package provides a low thermal-resistance path
to the die. It is important that the PCB on which the
the EP. In addition, provide the EP with a low-inductance
path to electrical ground. The EP MUST be soldered to
a ground plane on the PCB, either directly or through an
array of plated via holes.
MAX2044 is mounted be designed to conduct heat from
Table 2. Upconverter Mode Component Values
DESIGNATION
C1
C2, C6, C8, C11
C3, C9
C4, C7
C5
C10
C12
R1
T1
U1
QTY
1
4
0
2
0
1
1
0
1
1
1
DESCRIPTION
3.3nH microwave inductor (0402). Use for RF
frequencies ranging from 2300MHz to 3000MHz .
8.2pF microwave capacitor (0402). Use for RF
frequencies ranging from 3000MHz to 4000MHz .
0.01 F F microwave capacitors (0402)
Not installed, microwave capacitors (0402)
470pF microwave capacitors (0402)
Not installed, microwave capacitor (0402)
2pF microwave capacitor (0402)
0.3pF microwave capacitor (0402). Use for RF
frequencies ranging from 2300MHz to 3000MHz .
Microwave capacitor (0402) not installed for RF
frequencies ranging from 3000MHz to 4000MHz .
698 I ±1% resistor (0402). Use for V CC = +5.0V
applications.
698 I ±1% resistor (0402). Use for V CC = +3.3V
applications.
1:1 IF balun MABAES0029
MAX2044 IC (20 TQFN)
COMPONENT SUPPLIER
Coilcraft, Inc.
Murata Electronics North America, Inc.
Murata Electronics North America, Inc.
—
Murata Electronics North America, Inc.
—
Murata Electronics North America, Inc.
Murata Electronics North America, Inc.
—
Digi-Key Corp.
Digi-Key Corp.
M/A-Com
Maxim Integrated Products, Inc.
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