NRF24L01G NORDIC SEMICONDUCTOR, NRF24L01G Datasheet - Page 22

• Manufacturer Part Number: NRF24L01G
• Description: IC, RF TRANSCEIVER, 2.4-2.4835GHZ QFN-20
• Manufacturer: NORDIC SEMICONDUCTOR

Specifications of NRF24L01G

• Transmitting Current: 11.3mA
• Data Rate: 2Mbps
• Frequency Range: 2.4GHz To 2.4835GHz
• Modulation Type: GFSK
• Sensitivity Dbm: -82dBm
• Rf Ic Case Style: QFN
• No. Of Pins: 20
• Sensitivity (dbm): -82dBm
• Supply Voltage Range: 1.9V To 3.6V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6.1.7
The timing information in this section is related to the transitions between modes and the timing for the CE
pin. The transition from TX mode to RX mode or vice versa is the same as the transition from standby-I to
TX mode or RX mode,Tstby2a.
When nRF24L01 is in power down mode it must settle for 1.5ms before it can enter the TX or RX modes. If
an external clock is used this delay is reduced to 150µs, see
be controlled by the MCU.
6.2
The air data rate is the modulated signaling rate the nRF24L01 uses when transmitting and receiving data.
The air data rate can be 1Mbps or 2Mbps. The 1Mbps data rate gives 3dB better receiver sensitivity com-
pared to 2Mbps. High air data rate means lower average current consumption and reduced probability of
on-air collisions.
The air data rate is set by the RF_DR bit in the RF_SETUP register.
A transmitter and a receiver must be programmed with the same air data rate to be able to communicate
with each other.
For compatibility with nRF2401A, nRF24E1, nRF2402 and nRF24E2 the air data rate must be set to
1Mbps.
Revision 2.0
Tpece2csn
Tpd2stby
Tpd2stby
a. In this operating mode if the
b. This operating mode pulses the
Note: The register value is lost if VDD is turned off. In this case, nRF24L01 must be configured
Tstby2a
Name
Thce
sible retransmits are carried out. The transmission continues as long as the TX FIFO is refilled. If the
TX FIFO is empty when the
mission of a packet is started as soon as the
FIFO.
This is the normal operating mode. After the packet is transmittet, the nRF24L01 enters standby-I
mode.
Air data rate
Timing Information
before entering the TX or RX modes.
Power Down
Power Down
Standby modes
Minimum CE high
Delay from CE pos. edge to CSN low
nRF24L01
CE
Table 13. Operational timing of nRF24L01
CE
is still high, nRF24L01 enters standby-II mode. In this mode the trans-
Standby mode
Standby mode
CE
is held high the TX FIFO is emptied and all necessary ACK and pos-
Table 12. nRF24L01 main modes
TX/RX mode
high for at least 10µs. This allows one packet to be transmitted.
Page 22 of 74
CSN
is set high after a upload (UL) of a packet to TX
Table 13. on page
nRF24L01 Product Specification
1.5ms
150µs
130µs
Max.
Min.
10µs
22. The settling time must
4µs
Internal crystal
oscillator
With external
clock
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