User Manual

MPR/MIB User’s Manual
Wireless Sensor Networks
Doc. # 7430-0021-06 Rev. A Page 26
Table 7-1. Chipcon
®
CC1000 Ouput Power (PA_POW) Settings and Typical Current
Consumption. From Smart RF
®
CC1000 Preliminary Datasheet (rev. 2.1), 2002-04-19, p. 29 of
48.
Pout (dBm)
PA_POW (hex)
433/315 MHz
Current
Consumption,
typ.
(mA)
PA_POW
(hex)
915 MHz
Current
Consumption,
typ.
(mA)
-20 0x01 5.3 0x02 8.6
-19 0x01 6.9 0x02 8.8
-18 0x02 7.1 0x03 9.0
-17 0x02 7.1 0x03 9.0
-16 0x02 7.1 0x04 9.1
-15 0x03 7.4 0x05 9.3
-14 0x03 7.4 0x05 9.3
-13 0x03 7.4 0x06 9.5
-12 0x04 7.6 0x07 9.7
-11 0x04 7.6 0x08 9.9
-10 0x05 7.9 0x09 10.1
-9 0x05 7.9 0x0b 10.4
-8 0x06 8.2 0x0c 10.6
-7 0x07 8.4 0x0d 10.8
-6 0x08 8.7 0x0f 11.1
-5 0x09 8.9 0x40 13.8
-4 0x0a 9.4 0x50 14.5
-3 0x0b 9.6 0x50 14.5
-2 0x0c 9.7 0x60 15.1
-1 0x0e 10.2 0x70 15.8
0 0x0f 10.4 0x80 16.8
1 0x40 11.8 0x90 17.2
2 0x50 12.8 0xb0 18.5
3 0x50 12.8 0xc0 19.2
4 0x60 13.8 0xf0 21.3
5 0x70 14.8 0xff 25.4
6 0x80 15.8
7 0x90 16.8
8 0xc0 20.0
9 0xe0 22.1
10 0xff 26.7
X NOTE:
In order to comply with "Biyjacku" (Japanese standard), the Radio Transmit power for the MICA2 must
have a PA_POW set to lowest value, 0x01.
The radio on the MICA2/MICA2DOT also provides a measurement of the received signal
strength, referred to as RSSI. This output is measured on ADC channel 0 and is available to the
software. Some versions of TinyOS provide this measurement automatically, and others must be
enabled by the user. The conversion from ADC counts to RSSI in dBm is given by: