AX5043-QFN28-TU AXSEM, AX5043-QFN28-TU Datasheet - Page 33

• Manufacturer Part Number: AX5043-QFN28-TU
• Description: RF Transceiver Narrow-Band-IC
• Manufacturer: AXSEM

Specifications of AX5043-QFN28-TU

• Number Of Receivers: 1
• Number Of Transmitters: 1
• Wireless Frequency: 70 MHz to 1050 MHz
• Interface Type: SPI
• Output Power: 18 dBm to 22 dBm
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Maximum Supply Current: 60 mA
• Minimum Operating Temperature: - 40 C
• Modulation: ASK, FSK
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5.15. Power-modes
The
following:
Version 0.2
PWRMODE
POWERDOWN
DEEPSLEEP
STANDBY
FIFO
SYNTHRX
FULLRX
WOR
SYNTHTX
FULLTX
Name
register controls, which parts of the chip are operating. Power-modes are the
For the corresponding currents see table in section 4.2.
Description
All digital and analog functions, except the register file, are disabled. The core
supply voltages are switched off to conserve leakage power. Register
contents are preserved and accessible registers via SPI, but at a slower
speed.
Access to the FIFO is not possible and the contents are not preserved.
POWERDOWN mode is only entered once the FIFO is empty.
AX5043
register contents are lost.
To leave DEEPSLEEP mode the pin SEL has to be pulled low. This will initiate
startup and reset of the AX5043. Then the MISO line should be polled, as it
will be held low during initialization and will rise to high at the end of the
initialization, when the chip becomes ready for operation.
The crystal oscillator and the reference are powered on; receiver and
transmitter are off. Register contents are preserved and accessible registers
via SPI.
Access to the FIFO is not possible and the contents are not preserved.
STANDBY is only entered once the FIFO is empty.
The reference is powered on. Register contents are preserved and accessible
registers via SPI.
Access to the FIFO is possible and the contents are preserved.
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.
Receiver wakeup-on-radio mode.
The mode the same as powerdown, but the 640 Hz internal low power
oscillator is 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.
is fully turned off. All digital and analog functions are disabled. All
Preliminary
Circuit Description
Datasheet AX5043
33