CC3120 Datasheet, PDF (12/57 Pages) Texas Instruments – SimpleLink Wi-Fi Wireless Network Processor Internet-of-Things Solution for MCU Applications

CC3120
SWAS034 – FEBRUARY 2017
www.ti.com
4.6 TX Power and IBAT versus TX Power Level Settings
Figure 4-1, Figure 4-2, and Figure 4-3 show TX Power and IBAT versus TX power level settings for
modulations of 1 DSSS, 6 OFDM, and 54 OFDM, respectively.
In Figure 4-1, the area enclosed in the circle represents a significant reduction in current during transition
from TX power level 3 to level 4. In the case of lower range requirements (14-dBm output power), TI
recommends using TX power level 4 to reduce the current.
19.00
17.00
15.00
13.00
11.00
1 DSSS
Color by
TX Power (dBm)
IBAT (VBAT @ 3.6 V)
280.00
264.40
249.00
233.30
218.00
9.00
202.00
7.00
186.70
5.00
171.00
3.00
155.60
1.00
140.00
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
TX power level setting
Figure 4-1. TX Power and IBAT vs TX Power Level Settings (1 DSSS)
19.00
17.00
15.00
6 OFDM
Color by
TX Power (dBm)
IBAT (VBAT @ 3.6 V)
280.00
264.40
249.00
13.00
233.30
11.00
218.00
9.00
202.00
7.00
186.70
5.00
171.00
3.00
155.60
1.00
140.00
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
TX power level setting
Figure 4-2. TX Power and IBAT vs TX Power Level Settings (6 OFDM)
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