PRODUCT SPECIFICATION Single chip 433/868/915 MHz Transceiver nRF905 FEATURES APPLICATIONS * * * * * * * * * * * * * * * * * * * * * * * * * True single chip GFSK transceiver in a small 32-pin package (32L QFN 5x5mm) ShockBurstTM mode for low power operation Power supply range 1.9 to 3.6 V Multi channel operation - ETSI/FCC Compatible Channel switching time <650s Extremely low cost Bill of Material (BOM) No external SAW filter Adjustable output power up to 10dBm Carrier detect for "listen before transmit" protocols Data Ready signal when a valid data package is received or transmitted Address Match for detection of incoming package Automatic retransmission of data packages Automatic CRC and preamble generation Low supply current (TX), typical 11mA @ -10dBm output power Low supply current (RX), typical 12.5mA Wireless data communication Alarm and security systems Home Automation Remote control Surveillance Automotive Telemetry Industrial sensors Keyless entry Toys GENERAL DESCRIPTION nRF905 is a single-chip radio transceiver for the 433/868/915 MHz ISM band. The transceiver consists of a fully integrated frequency synthesiser, receiver chain with demodulator, a power amplifier, a crystal oscillator and a modulator. The ShockBurstT M feature automatically handles preamble and CRC. Configuration is easily programmable by use of the SPI interface. Current consumption is very low, in transmit only 11mA at an output power of -10dBm, and in receive mode 12.5mA. Built in power down modes makes power saving easily realizable. QUICK REFERENCE DATA Parameter Minimum supply voltage Maximum transmit output power Transmitted data rate (Manchester-encoder embedded) Supply current in transmit @ -10dBm output power Supply current in receive mode Temperature range Typical Sensitivity Supply current in power down mode Value 1.9 10 100 11 12.5 -40 to +85 -100 2.5 Unit V dBm kbps mA mA C dBm Table 1 nRF905 quick reference data. Main office: Nordic Semiconductor ASA Revision: 1.1 - Vestre Rosten 81, N-7075 Tiller, Norway Page 1 of 36 - Phone +4772898900 -Fax +4772898989 June 2004 PRODUCT SPECIFICATION nRF905 Single Chip 433/868/915 MHz Radio Transceiver ORDERING INFORMATION Type Number nRF905 IC nRF905-EVKIT 433 nRF905-EVKIT 868/915 Description 32L QFN 5x5mm Evaluation kit 433MHz Evaluation kit 868/915MHz Version 1.0 1.0 Table 2 nRF905 ordering information. BLOCK DIAGRAM DVDD_1V2 (31) VDD (25) VDD (4) VDD (17) VSS (30) VSS (29) VSS (28) VSS (27) VSS (26) VSS (24) VSS (21) VSS (18) VSS (9) VSS (16) VSS (5) XC1 (14) MISO (10) SCK (12) CSN (13) TRX_CE (1) PWR_UP (2) TX_EN (32) CD (6) AM (7) DR (8) SPI interface TX - addr. TX - reg. RX - reg. Config-reg. Voltage regulators Crystal oscillator IF BBF MOSI (11) LNA ShockBurst Demod Dataslicer CRC code/ decode Address decode Frequency Synthesiser VDD_PA (19) ANT1 (20) PA uPCLK (3) XC2 (15) ANT2 (21) GFSK filter Manchester encoder/ decoder IREF (23) Figure 1 nRF905 with external components. Main office: Nordic Semiconductor ASA Revision: 1.1 - Vestre Rosten 81, N-7075 Tiller, Norway Page 2 of 36 - Phone +4772898900 -Fax +4772898989 June 2004