ax5042-1 AXSEM, ax5042-1 Datasheet - Page 29

• Manufacturer Part Number: ax5042-1
• Description: Rf Transceiver
• Manufacturer: AXSEM

5.15. PWRMODE Register
The operation sequences of the chip can be controlled using the
registers.
Version 2.2
PWRMODE
register
0x6C
0x6D
0x00
0x60
0x00
0x61
0x01
0x68
0x69
APEOVER
register
0x80
0x00
0x00
0x00
0x00
0x00
0x00
Name
POWERDOWN
STANDBY
PWRUPPIN
SYNTHRX
FULLRX
SYNTHTX
FULLTX
Description
All digital and analog functions, except the register file, are
disabled. SPI registers are still accessible.
The crystal oscillator is powered on; receiver and transmitter
are off.
The mode is determined by the state of the PWRUP and
IRQ_TXEN pins.
The synthesizer is running on the receive frequency.
Transmitter and receiver are still off. This mode is used to let
the synthesizer settle on the correct frequency for receive.
Synthesizer and receiver are running
The synthesizer is running on the transmit frequency.
Transmitter and receiver are still off. This mode is used to let
the synthesizer settle on the correct frequency for transmit.
Synthesizer and transmitter are running. Do not switch into
this mode before the synthesizer has completely settled on
the transmit frequency (in SYNTHTX mode), otherwise
spurious spectral transmissions will occur.
PWRUP = 0: Same function as POWERDOWN
PWRUP = 1, IRQ_TXEN = 0: Same function as FULLRX
PWRUP = 1, IRQ_TXEN = 1: Same function as FULLTX
PWRMODE
Circuit Description
Datasheet AX5042
and
APEOVER
Typical Idd
17 - 21 mA
13 - 37 mA
17 - 21 mA
13 - 37 mA
650 µA
0.5 µA
0.5 µA
12 mA
11 mA
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