NRF905 NORDIC SEMICONDUCTOR, NRF905 Datasheet - Page 26

• 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
8.7
The operating RF-frequency of nRF905 is set in the configuration register by CH_NO
and HFREQ_PLL. The operating frequency is given by:
When HFREQ_PLL is ‘0’ the frequency resolution is 100kHz and when it is ‘1’ the
resolution is 200kHz.
The application operating frequency has to be chosen to apply with the Short Range
Devise regulation in the area of operation.
Main office: Nordic Semiconductor ASA
Revision: 1.4
Output Frequency
Operating frequency
f
OP
430.0 MHz
433.1 MHz
433.2 MHz
434.7 MHz
862.0 MHz
868.2 MHz
868.4 MHz
869.8 MHz
902.2 MHz
902.4 MHz
927.8 MHz
Table 14 Examples of real operating frequencies.
(
422
4 .
(
- Vestre Rosten 81, N-7075 Tiller, Norway
CH
_
HFREQ_PLL
NO
/
Page 26 of 42
10
[0]
[0]
[0]
[0]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
))
1 (
HFREQ
[001001100]
[001101011]
[001101100]
[001111011]
[001010110]
[001110101]
[001110110]
[001111101]
[100011111]
[100100000]
[110011111]
CH_NO
_
- Phone [phone] -Fax [phone]
PLL
)
MHz
June 2006