NRF905 NORDIC SEMICONDUCTOR, NRF905 Datasheet - Page 23

• Manufacturer Part Number: NRF905
• Description: IC, TRANSCEIVER, 430 928MHZ, SMD
• Manufacturer: NORDIC SEMICONDUCTOR

Specifications of NRF905

• Transmitting Current: 9mA
• Data Rate: 50Kbps
• Frequency Range: 430MHz To 928MHz
• Modulation Type: GFSK
• Sensitivity Dbm: -100dBm
• Rf Ic Case Style: QFN
• No. Of Pins: 32
• Supply Voltage Range: 1.9V To 3.6V
• Output Power: 10dBm
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PRODUCT SPECIFICATION
nRF905 Single Chip 433/868/915 MHz Radio Transceiver
7.5
The time-on-air is the sum of the radio start-up time and the data-packet length. The
length of the preamble, address field, payload and CRC-checksum give the data-
packet length while the radio start-up time is given in Table 11. While preamble
length and start-up time are fixed the user sets the other parameters in the RF-
configuration register. The below equation shows how to calculate TOA
t
and N
the bitrate, which is equal to 50kbps.
Main office: Nordic Semiconductor ASA
Revision: 1.4
startup
and t
Time On Air
CRC
are numbers of bits in the address, payload and CRC-checksum while BR is
preamble
are RF-start-up time and preamble time respectively. N
TOA
t
startup
- Vestre Rosten 81, N-7075 Tiller, Norway
t
preamble
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N
address
N
BR
payload
N
- Phone [phone] -Fax [phone]
CRC
address
, N
June 2006
payload