
Low-Cost, 308MHz, 315MHz, and 433.92MHz
FSK Transceiver with Fractional-N PLL
Table 3. Component Values for Typical Application Circuit
COMPONENT
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
C22
C23
C24
L1
L2
L3
L4
L5
L6
R1
R2
R3
Y1
Y2
VALUE FOR
433.92MHz RF
220pF
680pF
6.8pF
6.8pF
10pF
220pF
0.1μF
100pF
1.8pF
100pF
220pF
100pF
1500pF
0.047μF
0.047μF
470pF
220pF
220pF
0.01μF
100pF
100pF
220pF
0.01μF
0.01μF
22nH
22nH
22nH
10nH
16nH
68nH
100k ?
100k ?
0 ?
17.63416MHz
10.7MHz ceramic filter
VALUE FOR
315MHz RF
220pF
680pF
12pF
10pF
22pF
220pF
0.1μF
100pF
2.7pF
100pF
220pF
100pF
1500pF
0.047μF
0.047μF
470pF
220pF
220pF
0.01μF
100pF
100pF
220pF
0.01μF
0.01μF
27nH
30nH
30nH
12nH
30nH
100nH
100k ?
100k ?
0 ?
12.67917MHz
10.7MHz ceramic filter
DESCRIPTION
10%
10%
5%
5%
5%
10%
10%
5%
±0.1pF
5%
10%
5%
10%
10%
10%
10%
10%
10%
10%
5%
5%
10%
10%
10%
Coilcraft 0603CS
Coilcraft 0603CS
Coilcraft 0603CS
Coilcraft 0603CS
Murata LQW18A
Coilcraft 0603CS
5%
5%
—
Crystal, 4.5pF load
capacitance
Murata SFECV10.7 series
Note: Component values vary depending on PCB layout.
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