CC2430
Table 23: Overview of external components (excluding supply decoupling capacitors)
Component
C191
Description
Differential Antenna
33 pF, 5%, NP0, 0402
27 pF, 5%, NP0, 0402
220 nF, 10%, 0402
Single Ended 50Ω Output
33 pF, 5%, NP0, 0402
27 pF, 5%, NP0, 0402
220 nF, 10%, 0402
32 MHz crystal load capacitor
32 MHz crystal load capacitor
C211
C241
Load capacitance for analogue power
supply voltage regulators
C421
C341
Load capacitance for digital power supply
voltage regulators
1 µF, 10%, 0402
1 µF, 10%, 0402
Not used
DC block to antenna and match
5.6 pF, 5%, NP0, 0402
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
1.8 pF, Murata COG 0402,
GRM15
1.6 nH, Murata 0402,
LQG15HS1N6S02
C431, C441
L321
32.768 kHz crystal load capacitor (if low-
frequency crystal is needed in application)
15 pF, 5%, NP0, 0402
15 pF, 5%, NP0, 0402
Discrete balun and match
Discrete balun and match
Discrete balun and match
6.8 nH, 5%,
Monolithic/multilayer, 0402
12 nH 5%,
Monolithic/multilayer, 0402
L331
22 nH, 5%,
Monolithic/multilayer, 0402
27 nH, 5%,
Monolithic/multilayer, 0402
L341
1.8 nH, +/-0.3 nH,
Not used
Monolithic/multilayer, 0402
R221
Precision resistor for current reference
generator to system-on-chip part
56 kΩ, 1%, 0402
56 kΩ, 1%, 0402
43 kΩ, 1%, 0402
R261
Precision resistor for current reference
generator to RF part
43 kΩ, 1%, 0402
XTAL1
XTAL2
32 MHz Crystal
32 MHz crystal,
ESR < 60 Ω
32 MHz crystal,
ESR < 60 Ω
Optional 32.768 kHz watch crystal (if low-
frequency crystal is needed in application) Epson MC 306.
32.768 kHz crystal,
32.768 kHz crystal,
Epson MC 306.
CC2430 Data Sheet (rev. 2.1) SWRS036F
Page 29 of 211
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