CC2550-RTY1 datasheet(31/62 Pages) TI2

31 / 62 page

CC2550

SWRS039B

Page 31 of 58

e.g 6

PA_POWER[2:0]

in FREND0 register

PATABLE(0)[7:0]

PATABLE(1)[7:0]

PATABLE(2)[7:0]

PATABLE(3)[7:0]

PATABLE(4)[7:0]

PATABLE(5)[7:0]

PATABLE(6)[7:0]

PATABLE(7)[7:0]

Index into PATABLE(7:0)

The PA uses this

setting.

Settings 0 to PA_POWER are

used during ramp-up at start of

transmission and ramp-down at

end of transmission, and for

OOK modulation.

The SmartRF® Studio software

should be used to obtain optimum

PATABLE settings for various

output powers.

Figure 19: PA_POWER and PATABLE

Output Power, Typical,

+25

oC, 3.0 V [dBm]

PATABLE

Value

Current Consumption,

Typical [mA]

(–55 or less)

0x00

8.0

–30

0x44

9.3

–28

0x41

9.2

–26

0x43

9.7

–24

0x84

9.8

–22

0x82

9.7

–20

0x47

10.0

–18

0xC8

11.6

–16

0x85

10.2

–14

0x59

11.6

–12

0xC6

11.2

–10

0x97

12.0

–8

0xD6

12.9

–6

0x7F

14.7

–4

0xA9

16.2

–2

0xBF

18.1

0xEE

19.4

0xFF

21.3

Table 20: Optimum PATABLE Settings for Various Output Power Levels

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