Chips cc2420

cc2420 is RF transceiver for IEEE 802.15.4 / 2.4GHz communication, originally made by ChipCon, now owned by TI.

Main characteristics

• 2.4 GHz, 1MHz resolution
• max data rate: 250kbps max
• output power: -25dbm - 0dbm
• energy consumption at 3V is just under 20mA. Can be less in various modes and tx powers.

Channels

• No. 11 = 2405 MHz
• No. 18 = 2440 MHz
• No. 26 = 2480 MHz
• For any channel X (11..26): freqency = 2405 + 5(X-11) MHz

Tx Power

• From 1 to 31.
• No. 0 = -25 dBm
• No 31 = 0 dBm

Webpage

• http://focus.ti.com/docs/prod/folders/print/cc2420.html

Datasheets

• 2.4 GHz IEEE 802.15.4 / ZigBee-Ready RF Transceiver (Rev. B) (cc2420.pdf, 765 KB)
• CC2420 Errata Notes (swrz003.pdf, 252 KB)

Links

• Boomerang radio parameters (TinyOS channel numbers to freqency, etc.)

TinyOS related

To change channel, from Makefile

• CFLAGS=-DCC2420_DEF_CHANNEL=18

To change power from Makefile

• CFLAGS=-DCC2420_DEF_RFPOWER=31

Note, another chip cc2430 is SoC with cc2420 core for RF.