CC115LRGP datasheet(36/74 Pages) TI2

36 / 74 page

CC115L

SWRS105B – MAY 2011 – REVISED JUNE 2014

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5.15 Output Power Programming

The RF output power level from the device has two levels of programmability. The PATABLE register can

hold two user selected output power settings and the FREND0.PA_POWER value selects the PATABLE

entry to use (0 or 1). PATABLE must be programmed in burst mode if writing to other entries than

PATABLE[0]. See Section 5.5.6 for more programming details.

For OOK modulation, FREND0.PA_POWER should be 1 and the logic 0 and logic 1 power levels shall be

programmed to index 0 and 1 respectively. For all other modulation formats, the desired output power

should be programmed to index 0.

Table 5-8 contains the recommended PATABLE settings for various output levels and frequency bands.

DN013 SWRA168 gives the complete tables for the different frequency bands using multi-layer inductors.

Using PA settings from 0x61 to 0x6F is not allowed. Table 5-11 contains output power and current

consumption for default PATABLE setting (0xC6). The measurements are done on SWRR045.

NOTE

All content of the PATABLE except for the first byte (index 0) is lost when entering the

SLEEP state.

Table 5-8. Optimum PATABLE Settings for Various Output Power Levels Using Wire-Wound Inductors in

868- and 915-MHz Frequency Bands

868 MHz

915 MHz

Current Consumption,

Output Power [dBm]

Setting

Typ. [mA]

12/11

0xC0

34.2

0xC0

33.4

0xC5

30.0

0xC3

30.7

0xCD

25.8

0xCC

25.7

0x86

19.9

0x84

20.2

0x50

16.8

0x8E

17.2

−6

0x37

16.4

0x38

17.0

−10

0x26

14.5

0x27

14.8

−15

0x1D

13.3

0x1E

13.3

−20

0x17

12.6

0x0E

12.5

−30

0x03

12.0

0x03

11.9

Table 5-9. Output Power and Current Consumption for Default PATABLE Setting Using Wire-Wound

Inductors in 868- and 915-MHz Frequency Bands

868 MHz

915 MHz

Default Power Setting

Output Power [dBm]

Current Consumption,

Output Power [dBm]

Current Consumption,

Typ. [mA]

0xC6

9.6

29.4

8.9

28.7

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