NRF2401G IC Nordic VLSI, NRF2401G IC Datasheet - Page 22

• Manufacturer Part Number: NRF2401G IC
• Description: RF Transceiver, Single chip 2.4GHz Transceiver, 24-QFN
• Manufacturer: Nordic VLSI

PRODUCT SPECIFICATION
nRF2401 Single Chip 2.4 GHz Radio Transceiver
General device configuration:
This section of the configuration word handles RF and device related parameters.
Modes:
Bit 15:
Bit 14:
Bit 13:
Bit 12-10:
Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -
Revision: 1.1
RX2_EN
15
RX2_EN:
NOTE:
Communication Mode:
RF Data Rate:
NOTE:
XO_F:
In two channels receive, the nRF2401 receives on two, separate
frequency channels simultaneously. The frequency of receive channel
1 is set in the configuration word bit[7-1], receive channel 2 is always
8 channels (8 MHz) above receive channel 1.
Utilizing 250 kbps instead of 1Mbps will improve the receiver
sensitivity by 10 dB. 1Mbps requires 16MHz crystal.
CM
14
D12
0
0
0
0
1
Logic 0: One channel receive
Logic 1: Two channels receive
Logic 0: nRF2401 operates in direct mode.
Logic 1: nRF2401 operates in ShockBurst™ mod
Logic 0: 250 kbps
Logic 1: 1 Mbps
Selects the nRF2401 crystal frequency to be used:
RFDR_SB
D11
Table 16 Crystal frequency setting.
Table 15 RF operational settings.
XO FREQUENCY SELECTION
13
0
0
1
1
0
D10
0
1
0
1
0
Page 22 of 39
12
Crystal Frequency [MHz]
XO_F
11
Phone [phone]
12
16
20
4
8
10
9
RF_PWR
-
e
Fax [phone]
June 2004
8