CC2430 Datasheet, PDF(28/212 Page) Texas Instruments – A True System-on-Chip solution for 2.4 GHz IEEE 802.15.4 / ZigBee-TM

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CC2430 Datasheet, PDF (28/212 Pages) Texas Instruments – A True System-on-Chip solution for 2.4 GHz IEEE 802.15.4 / ZigBee-TM

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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

CC2430

application. TI provides a compact reference

design that should be followed very closely.

Refer to the section PCB Layout

Recommendation on page 175.

C441

C431

optional

XTAL2

C421

2.0 - 3.6V Power Supply

1 P1_7

2 P1_6

3 P1_5

4 P1_4

5 P1_3

6 P1_2

7 DVDD

8 P1_1

9 P1_0

10 RESET_N

11 P0_0

12 P0_1

AVDD_RF2 36

AVDD_SW 35

RF_N 34

TXRX_SWITCH 33

RF_P 32

AVDD_RF1 31

AVDD_PRE 30

AVDD_VCO 29

VCO_GUARD 28

AVDD_CHP 27

RBIAS2 26

AVDD_IF1 25

Antenna

(50 Ohm)

L321

L341 C341

L331

/4

/4

or

R261

XTAL1

C191 C211

R221

C241

L331

L321

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

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