nRF903

Manufacturer Part NumbernRF903
DescriptionMultichannel RF Transceiver 433/868/915MHz
ManufacturerNordic VLSI
nRF903 datasheet
 


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PRODUCT SPECIFICATION
430MHz-950MHz
Single Chip RF Transceiver
Single chip GFSK multi-channel
transceiver
433MHz, 868MHz and 915MHz
ISM/LPRD-bands compatible
76.8kbit/s data rate
High bandwidth efficiency
Easy 14-bit configuration
Reliable communication due to
superior adjacent channel selectivity
Full output power in all ISM-bands
Few external components required
Standby- and power down-mode
nRF903 is a true single chip multi-channel UHF transceiver designed to operate in the
unlicensed 433MHz, 868MHz and 915MHz ISM-/LPRD- (Industrial Scientific Medical /
Low Power Radio Device) bands. Multi-channel operation, excellent receiver selectivity and
sensitivity, high bandwidth efficiency and blocking performance make the nRF903 suitable
for wireless links where high reliability is a key requirement.
The device features GFSK (Gaussian Frequency Shift Keying) modulation and demodulation
capability at an effective bit rate of 76.8kbit/s in 153.6kHz channel bandwidths. Transmit
power can be adjusted to a maximum of 10dBm which is available for all frequency bands
and channels. Antenna interface is differential and suited for low cost PCB-antennas. All
necessary configuration data is programmed by a 14-bit configuration word via a Serial
Peripheral Interface (SPI). nRF903 operates from a single +3V DC supply and features power
down- and standby-modes which makes power saving easy and efficient.
Frequency bands
Datarate
Sensitivity @ 300 , BR=76.8kbit/s, BER<10
Modulation
Blocking performance (>1 MHz from carrier)
Max. RF output power @ 300 , 3V
Supply voltage
Number of available channels
Table 1. nRF903 quick reference data.
Nordic VLSI ASA
-
Vestre Rosten 81, N-7075 Tiller, Norway
Revision: 3.1
Alarm and Security Systems
Automotive
Home Automation
Automatic Meter Reading (AMR)
Wireless Handsfree
Remote Control
Surveillance
Wireless Communications
Telemetry
Toys
433.05 - 434.87
-3
433.05 - 434.87 MHz
868 - 870 MHz
902-928 MHz
-
Phone +4772898900
Qhtrà ÂsÃ"!
868 - 870
MHz
902-928
76.8
kbit/s
-104
dBm
GFSK
>50
dB
10
dBm
2.7 – 3.3
V
10
7
-
169
-
Fax +4772898989
December 2002