MAX2021
High-Dynamic-Range, Direct Up-/Downconversion
650MHz to 1200MHz Quadrature Mod/Demod
Typical Application Circuit
V CC
C12
0.1 μ F
C13
33pF
C10
33pF
C11
0.1 μ F
V CC
R3
GND
GND
GND
GND
GND
GND
GND
332 ?
+
36
35
34
33
32
31
30
29
28
GND
1
MAX2021
27
GND
V CC
C2
0.1 μ F
C1
33pF
C3
RBIASLO3
VCCLOA
2
3
BIAS
LO3
26
25
BBQ+
BBQ-
Q+
Q-
LO
82pF
LO
4
90 °
0 °
24
GND
C9
8.2pF
GND
5
23 RF
RF
RBIASLO1
6
BIAS
LO1
Σ
22
GND
R1
432 ?
N.C.
7
21
BBI-
I-
RBIASLO2
8
BIAS
LO2
20
BBI+
I+
R2
619 ?
GND
9
EP
19
GND
10
GND
11
GND
12
GND
13
14
GND
15
16
GND
17
GND
18
GND
V CC
C5
0.1 μ F
C6
33pF
C7
33pF
C8
0.1 μ F
V CC
Table 3. Component List Referring to the Typical Application Circuit
COMPONENT
C1, C6, C7, C10, C13
C2, C5, C8, C11, C12
C3
C9
R1
R2
R3
Maxim Integrated
VALUE
33pF
0.1μF
82pF
8.2pF
432 ?
619 ?
332 ?
DESCRIPTION
33pF ±5%, 50V C0G ceramic capacitors (0402)
0.1μF ±10%, 16V X7R ceramic capacitors (0603)
82pF ±5%, 50V C0G ceramic capacitor (0402)
8.2pF ±0.1pF, 50V C0G ceramic capacitor (0402)
432 ? ±1% resistor (0402)
619 ? ±1% resistor (0402)
332 ? ±1% resistor (0402)
19
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