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Unformatted text preview: CC2500 SWRS040C Page 1 of 89 CC2500 Low-Cost Low-Power 2.4 GHz RF Transceiver Applications 2400-2483.5 MHz ISM/SRD band systems Consumer electronics Wireless game controllers Wireless audio Wireless keyboard and mouse RF enabled remote controls Product Description The CC2500 is a low-cost 2.4 GHz transceiver designed for very low-power wireless appli- cations. The circuit is intended for the 2400- 2483.5 MHz ISM (Industrial, Scientific and Medical) and SRD (Short Range Device) frequency band. The RF transceiver is integrated with a highly configurable baseband modem. The modem supports various modulation formats and has a configurable data rate up to 500 kBaud. CC2500 provides extensive hardware support for packet handling, data buffering, burst transmissions, clear channel assessment, link quality indication, and wake-on-radio. The main operating parameters and the 64- byte transmit/receive FIFOs of CC2500 can be controlled via an SPI interface. In a typical system, the CC2500 will be used together with a microcontroller and a few additional passive components. 6 7 8 9 10 20 19 18 17 16 Key Features RF Performance High sensitivity (104 dBm at 2.4 kBaud, 1% packet error rate) Low current consumption (13.3 mA in RX, 250 kBaud, input well above sensitivity limit) Programmable output power up to +1 dBm Excellent receiver selectivity and blocking performance Programmable data rate from 1.2 to 500 kBaud Frequency range: 2400 2483.5 MHz Analog Features OOK, 2-FSK, GFSK, and MSK supported Suitable for frequency hopping and multi- channel systems due to a fast settling frequency synthesizer with 90 us settling time Automatic Frequency Compensation (AFC) can be used to align the frequency synthesizer to the received centre frequency Integrated analog temperature sensor Digital Features Flexible support for packet oriented systems: On-chip support for sync word detection, address check, flexible packet length, and automatic CRC handling Efficient SPI interface: All registers can be programmed with one burst transfer Digital RSSI output Programmable channel filter bandwidth Programmable Carrier Sense (CS) indicator CC2500 SWRS040C Page 2 of 89 Programmable Preamble Quality Indicator (PQI) for improved protection against false sync word detection in random noise Support for automatic Clear Channel Assessment (CCA) before transmitting (for listen-before-talk systems) Support for per-package Link Quality Indication (LQI) Optional automatic whitening and de- whitening of data Low-Power Features 400 nA SLEEP mode current consumption Fast startup time: 240 us from SLEEP to RX or TX mode (measured on EM design) Wake-on-radio functionality for automatic low-power RX polling Separate 64-byte RX and TX data FIFOs (enables burst mode data transmission) General Few external components: Complete on- chip frequency synthesizer, no external filters or RF switch needed...
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This document was uploaded on 02/08/2012.
- Winter '09