CC2420

Product Summary

The CC2420 is a true single-chip 2.4 GHz IEEE 802.15.4 compliant RF transceiver designed for low-power and low-voltage wireless applications. CC2420 includes a digital direct sequence spread spectrum baseband modem providing a spreading gain of 9 dB and an effective data rate of 250 kbps. The CC2420 is a low-cost, highly integrated solution for robust wireless communication in the 2.4 GHz unlicensed ISM band. It complies with worldwide regulations covered by ETSI EN 300 328 and EN 300 440 class 2 (Europe), FCC CFR47 Part 15 (US) and ARIB STD-T66 Japan). The CC2420 provides extensive hardware support for packet handling, data buffering, burst transmissions, data encryption, data authentication, clear channel assessment, link quality indication and packet timing information. These features reduce the load on the host controller and allow CC2420 to interface low-cost microcontrollers. The configuration interface and transmit / receive FIFOs of CC2420 are accessed via an SPI interface. In a typical application CC2420 will be used together with a microcontroller and a few external passive components. CC2420 is based on Chipcons SmartRF®-03 technology in 0.18 μm CMOS.

Parametrics

Absolute maximum ratings:(1)Supply voltage for on-chip voltage regulator, VREG-IN pin 43: -0.3 to 3.6V; (2)Supply voltage (VDDIO) for digital I/Os, DVDD3.3, pin 25: -0.3 to 3.6V; (3)Supply voltage (VDD) on AVDD-VCO, DVDD1.8, etc (pin no 1, 2, 3, 4, 10, 14, 15, 17, 18, 20, 26, 35, 37, 44 and 48): -0.3 to 2.0V; (4)Voltage on any digital I/O pin, (pin no. 21, 27-34 and 41): -0.3 to VDDIO+0.3, max 3.6V; (5)Voltage on any other pin, (pin no. 6, 7, 8, 11, 12, 13, 16, 36, 38, 39, 40, 45, 46 and 47): -0.3 to VDD+0.3, max 2.0V; (6)Input RF level: 10dBm; (7)Storage temperature range: -50 to 150℃; (8)Reflow solder temperature: 260℃.

Features

Features:(1)2400 – 2483.5 MHz RF Transceiver; (2)Direct Sequence Spread Spectrum (DSSS) transceiver; (3)250 kbps data rate, 2 MChip/s chip rate; (4)O-QPSK with half sine pulse shaping modulation; (5)Very low current consumption (RX: 19.7 mA, TX: 17.4 mA); (6)High sensitivity (-94 dBm); (7)High adjacent channel rejection (39 dB); (8)High alternate channel rejection (55 dB); (9)On-chip VCO, LNA and PA; (10)Low supply voltage (2.1 – 3.6 V) with on-chip voltage regulator; (11)Programmable output power; (12)I/Q low-IF soft decision receiver; (13)I/Q direct up-conversion transmitter; (14)Separate transmit and receive FIFOs; (15)128 byte transmit data FIFO; (16)128 byte receive data FIFO; (17)Very few external components; (18)Only reference crystal and a minimised number of passives; (19)No external filters needed; (20)Easy configuration interface.

Diagrams