CC2520_11 Datasheet, PDF (72/133 Pages) Texas Instruments – 2.4 GHZ IEEE 802.15.4/ZIGBEE RF TRANSCEIVER

CC2520 DATASHEET
2.4 GHZ IEEE 802.15.4/ZIGBEE® RF TRANSCEIVER
SWRS068 – DECEMBER 2007
Table 17: Output power and current consumption measured on the CC2520 reference design @
+3.0 V, +25°C, f_c=2.440 GHz
TXPOWER
Typical output Typical current
register (hex) power (dBm) consumption (mA)
F7
5
33.6
F2
3
31.3
AB
2
28.7
13
1
27.9
32
0
25.8
81
-2
24.9
88
-4
23.1
2C
-7
19.9
03
-18
16.2
19.9 Tips And Tricks
• Trigger the STXON and STXONCCA strobes from GPIO pins. This gives the microcontroller very
accurate control of the timing of the outgoing frame.
• Use a timer in the microcontroller to capture the timing of the SFD exception. This gives the
microcontroller exact knowledge of when the frame was transmitted.
• Note that there is no requirement to have the complete frame in the TXFIFO before starting a
transmission. Bytes may be added to the TX FIFO during transmission.
• It is possible to make CC2520 transmit non-IEEE 802.15.4 compliant frames by setting
MDMTEST1.MODULATION_MODE=’1’.
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