CC8520

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SWRS091A – MARCH 2010

7

Copyright

PIN

PIN NAME

PIN TYPE

DESCRIPTION

39

DCPL

Power (Digital)

1.7V-1.85 V linear voltage regulator output to which a 1 uF decoupling capacitor should be

attached. For test-purposes an external digital supply voltage (1.62-1.98 V) can be applied

here, bypassing the voltage regulator.

NOTE: The voltage regulator is intended for use with the CC8520 chip only. It cannot be

used to provide supply voltage to other devices.

40

DVDD

Power (Digital)

Digital power supply for the linear voltage regulator.

1

Digital I/O pad with 4 mA source/sink capability, programmable direction and pull-up, pull-down or high-impedance.

2

Digital I/O pad with 20 mA source/sink capability, programmable direction and pull-up, pull-down or high-impedance.

1

9

7

10

8

6

5

4

3

2

30

22

24

21

23

25

26

27

28

29

CC8520

xANTM

xANTP

CSN

SCLK

MOSI

MISO

GIO1

GIO2

GIO3

IOVDD

RBIAS

VBAT

AVDD

AVDD

AVDD

RF_N

RF_P

AVDD

X0

X1

Audio Device

2.0V-3.6V

Power Supply

Antenna

(50 Ohm)

C301

C302

L301

L302

L303

C303

C306

C305

Alternative:

CC2590 External LNA/PA

Antenna

(50 Ohm)

CC2590 +

Matching/

Filtering

C391

L304

Figure 2 - CC8520 Application Circuit