Transmit mode Receive mode
IDLE
Manual freq.
synth. calibration
RX FIFO
overflow
TX FIFO
underflow
Frequency
synthesizer on
SFSTXON
SRX or wake-on-radio (WOR)
STX
STX
STX or RXOFF_MODE=10
RXOFF_MODE = 00
SFTX
SRX or TXOFF_MODE = 11
SIDLE
SCAL
SFRX
IDLE
TXOFF_MODE = 00
SFSTXON or RXOFF_MODE = 01
SRX or STX or SFSTXON or wake-on-radio (WOR)
Sleep
SPWD or wake-on-radio (WOR)
Crystal
oscillator off
SXOFF
CSn = 0
CSn = 0
TXOFF_MODE = 01
Frequency
synthesizer startup,
optional calibration,
settling
Optional freq.
synth. calibration
Default state when the radio is not
receiving or transmitting. Typ.
current consumption: 1.7 mA.
Lowest power mode. Most
register values are retained.
Current consumption typ
200 nA, or typ 500 nA when
wake-on-radio (WOR) is
enabled.
All register values are
retained. Typ. current
consumption; 165 µA.
Used for calibrating frequency
synthesizer upfront (entering
receive or transmit mode can
then be done quicker).
Transitional state. Typ. current
consumption: 8.4 mA.
Frequency synthesizer is turned on, can optionally be
calibrated, and then settles to the correct frequency.
Transitional state. Typ. current consumption: 8.4 mA.
Frequency synthesizer is on,
ready to start transmitting.
Transmission starts very
quickly after receiving the STX
command strobe.Typ. current
consumption: 8.4 mA.
Typ. current consumption:
16.8 mA at 0 dBm output,
30.0 mA at +10 dBm output,
34.2 mA at +12 dBm output.
Typ. current
consumption:
from 14.7 mA (strong
input signal) to 15.7 mA
(weak input signal).
Optional transitional state. Typ.
current consumption: 8.4 mA.
In FIFO-based modes,
transmission is turned off and
this state entered if the TX
FIFO becomes empty in the
middle of a packet. Typ.
current consumption: 1.7 mA.
In FIFO-based modes,
reception is turned off and this
state entered if the RX FIFO
overflows. Typ. current
consumption: 1.7 mA.
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