Chipcon CC2420 ZigBee/IEEE 802.15.4 RF Transceiver

Posted in RF Transmitter, Receiver, Wireless Controller, ZigBee
On Tuesday, August 1, 2006

Chipcon CC2420 is a low cost, low power 2.4 GHz RF transceiver, compliant with the IEEE 802.15.4 and ZigBee Transceiver standards.

Chipcon provides free IEEE/802.15.4 MAC software

Key features of Chipcon CC2420 ZigBee RF Transceiver

Application notes of Chipcon CC2420 RF Transceiver (from ChipCon Website)

1
	This application note describes the coexistence performance of the CC2420 2.4 GHz ZigBee / IEEE 802.15.4 transceiver when operating in an environment together with Bluetooth, WLAN or other ZigBee devices.

2
	AN040 is a new application note describing a folded dipole PCB antenna design applicable for CC2400, CC2420, C2430 and CC2431. The reference design, which is available for download for CC2400, can be used with all 4 circuits as the impedance is more or less identical.

3
	The CC2420 with external power amplifier reference design is highly suitable for IEEE 802.15.4/ZigBeeTM solutions in need of achieving longer range while still running off batteries. Achieving 580m with 10dBm nominal output power and less than 35mA current consumption makes this design highly attractive. The reference design can be downloaded from Chipcon’s web pages. .

4
	This application note describes the steps involved in porting the RF Blinking LED software example originally written for the CC2420DB/Atmega128 platform to an MSP430F116 used with a Texas Instruments MSP-FET430P140 development board. The example demonstrates a subset of the IEEE 802.15.4 protocol.

5
	This application note contains a summary of regulations affecting products using the 2.4 GHz license-free band. Regulations covering USA, Europe and Japan are discussed in the application note.

6
	This appnote describes an LC filter that attenuates high frequencies better than the Pi-type filter used on most of Chipcon’s development kits. This filter can be used to reduce harmonic output levels if these are too high according to local radio regulations.

7
	This application note shows you how to interface chips using different supply voltages. For example, this is useful if you want to connect a 3V RF transceiver to a 5V microcontroller. The application note covers some basic theories regarding different signal levels used for digital signals and an overview of the various methods for doing voltage level conversion.

8
	Frequency hopping is a technique which renders an RF link more resistant to interference. All of Chipcon’s RF chips are very well suited to implementing frequency hopping. This application note covers frequency hopping techniques in general, and also gives pointers on how to implement frequency hopping using Chipcon transceivers and transmitters.

9
	This application note addresses one of the most important issues faced by a designer of short-range radio systems

10
	The ETSI standard for licence-free short range devices (SRDs) in the 433MHz band, EN 300 220, sets the requirement to receiver spurious emission to <-57dBm. This application note shows how this requirement is met using the CC400 transceiver.

11
	International regulations and national laws regulate the use of radio receivers and transmitters. This document is a summary of the most important aspects of these regulations for licence free operation of radio receivers and transmitters.

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