NRF905 NORDIC SEMICONDUCTOR, NRF905 Datasheet - Page 17

• 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
6.3
The interface supports SPI mode 0. SPI operation and timing is given in Figure 6 to
Figure 8 and in Table 8. The device must be in one of the power saving modes for the
configuration registers to be read or written to.
MOSI
MISO
Main office: Nordic Semiconductor ASA
Revision: 1.4
MOSI
MISO
CSN
SCK
CSN
SCK
MOSI
MISO
CSN
SCK
SPI Timing
C7
S7
C7
S7
C6
S6
C6
S6
C5
S5
C5
S5
Tcc
C4
S4
C4
S4
Tdc
Tcsd
C3
S3
C3
S3
C7
Tdh
C2
S2
Tch
Tch
C2
S2
Figure 8 SPI NOP timing diagram.
S7
C1
S1
C1
S1
Figure 7 SPI write operation.
Figure 6 SPI read operation.
- Vestre Rosten 81, N-7075 Tiller, Norway
C0
S0
C0
S0
Tcl
Tcl
D7
Tcd
D7
C6
D6
D6
Page 17 of 42
D5
D5
D4
D4
D3
D2
D3
C0
D1
D2
D0
D1
S0
D0
D1 5
- Phone [phone] -Fax [phone]
D1 5
D1 4
Tcch
D1 3
Tcdz
Tcwh
Tcwh
D1 4
D1 2
D1 3
D1 1
D1 2
D1 0
D1 1
D9
D1 0
D8
June 2006
D9
D8