User`s manual

A8520E24A91 – User’s Manual Page 31 of 36
Release Date 01/23/15
Anaren Integrated Radio (AIR)
5. Configuration and Programming
The integrator of this module into an application must program the module to match both the
Codec chip used and the human interface methods employed. To do this the integrator must
use the PurePath™ software from TI to configure the module
5.1. Calibrating Transmit Power
This power calibration number is an approximate power output value in dBm for the CC85xx
chip – however the module CC2591 adds additional 16dB amplification.
It can be useful to set a lower power for systems that do not require the full range and thus save
on power consumption. The typical power consumption at 3.3v supply for a A8520E24A91
module is shown below depending on the output power setting.
NOTE: For prior versions, see Table 1 for the maximum permitted PurePath power setting
Table 7 Transmit power settings
PurePath
Power
Setting
Module
Output Power
(Approximate)
Peak Current Consumption
Average Current Consumption [mA]
@ 3.3V AVdd,IOVdd, Ambient*
[dBm]
[dBm]
[dBm]
Master
Slave
4
20
184
78
36
3
19
174
72
35
2
17
147
64
34
1
15
143
63
34
0
13
118
55
32
-1
13
118
54
32
-2
12
113
52
32
-3
11
106
50
32
-4
11
106
50
32
-5
10
99
48
31
-6
10
97
47
31
-7
10
97
47
31
-8
8
94
46
31
-9
7
92
46
31
-10
6
91
46
31
* PurePath application state set to “stereo audio”
In the PurePath
TM
configurator when creating the application image, in the “Radio” page for both
master and slave the target Tx power must be set to the max allowed power level, or lower,
(note that the max allowed power setting for US and Canada is 4. However for Europe, only the
power settings up to -3 are allowed due to power spectral density limits). Figure 11 indicates the
location for setting the module output power. PurePath Wireless Configurator 1.3.0.36447 has
been used for the current measurements.