CC2480
Table 19: Overview of external components (excluding supply decoupling capacitors)
Component
C191
C211
C241
Description
32 MHz crystal load capacitor
32 MHz crystal load capacitor
Load capacitance for analogue power
Single Ended 50 ? Output
33 pF, 5%, NP0, 0402
27 pF, 5%, NP0, 0402
220 nF, 10%, 0402
Differential Antenna
33 pF, 5%, NP0, 0402
27 pF, 5%, NP0, 0402
220 nF, 10%, 0402
supply voltage regulators
C421
Load capacitance for digital power supply
1 μ F, 10%, 0402
1 μ F, 10%, 0402
voltage regulators
C341
C431, C441
DC block to antenna and match
Note: For RF connector a LP filter can be
connected between this C, the antenna
and good ground in order to remove
conducted spurious emission by using
1.8pF in parallel with 1.6nH
32.768 kHz crystal load capacitor (if low-
5.6 pF, 5%, NP0, 0402
1.8 pF, Murata COG 0402,
GRM15
1.6 nH, Murata 0402,
LQG15HS1N6S02
15 pF, 5%, NP0, 0402
Not used
15 pF, 5%, NP0, 0402
frequency crystal is needed in application)
L321
L331
L341
Discrete balun and match
Discrete balun and match
Discrete balun and match
6.8 nH, 5%,
Monolithic/multilayer, 0402
22 nH, 5%,
Monolithic/multilayer, 0402
1.8 nH, +/-0.3 nH,
12 nH 5%,
Monolithic/multilayer, 0402
27 nH, 5%,
Monolithic/multilayer, 0402
Not used
Monolithic/multilayer, 0402
R221
R261
XTAL1
XTAL2
Precision resistor for current reference
generator to system-on-chip part
Precision resistor for current reference
generator to RF part
32 MHz Crystal
Optional 32.768 kHz watch crystal (if low-
frequency crystal is needed in application)
56 k ? , 1%, 0402
43 k ? , 1%, 0402
32 MHz crystal,
ESR < 60 ?
32.768 kHz crystal,
Epson MC 306.
56 k ? , 1%, 0402
43 k ? , 1%, 0402
32 MHz crystal,
ESR < 60 ?
32.768 kHz crystal,
Epson MC 306.
CC2480 Data Sheet SWRS074A
Page 22 of 43
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