CC2430
10.6 Power supply decoupling and filtering
Proper power supply decoupling must be used
for optimum performance. The placement and
size of the decoupling capacitors and the
power supply filtering are very important to
achieve the best performance in an
application. TI provides a compact reference
design that should be followed very closely.
Refer
to
the
section
PCB
Layout
Recommendation on page 175.
C431
C441
C421
2.0 - 3.6V Power Supply
XTAL2
optional
Antenna
(50 Ohm)
1
2
3
4
5
6
7
8
9
36
35
34
33
32
P1_7
P1_6
P1_5
P1_4
P1_3
P1_2
DVDD
P1_1
P1_0
AVDD_RF2
AVDD_SW
RF_N
C341
L341
L321
TXRX_SWITCH
RF_P
L331
/4
31
30
29
28
27
AVDD_RF1
AVDD_PRE
AVDD_VCO
VCO_GUARD
AVDD_CHP
/4
10 RESET_N
or
R261
11
12
RBIAS2 26
25
P0_0
P0_1
AVDD_IF1
L331
L321
XTAL1
R221
C241
C191
C211
Figure 6: CC2430 Application Circuit. (Digital I/O and ADC interface not connected).
Decoupling capacitors not shown.
CC2430 Data Sheet (rev. 2.1) SWRS036F
Page 28 of 211
TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
