designed such that if the transmit power is within mean power spectral density limits then it will
automatically be within peak power limits although this should be checked during product design
verification.
As this is an analog circuit, there will be some variation in output power levels from IC to IC and hence
DW1000 should be calibrated and the calibrated power setting stored in the OTP memory. DW1000 provides
the facility to adjust the transmit power in coarse and fine steps; 3 dB and 0.5 dB nominally. It also provides
the ability to adjust the spectral bandwidth. These adjustments can be used to maximise transmit power
whilst meeting regulatory spectral mask limits.
8.2.1 Calibration Method
This calibration can be performed using either a radiated or conducted measurement procedure. The
calibration method is slightly different depending on whether Manual Transmit Power Control (see 7.2.31.3
– Manual Transmit Power Control) or Smart Transmit Power Control (see 7.2.31.2 – Smart Transmit Power
Control) is configured.
8.2.1.1 Calibration – Manual TX Power Control
Test Setup:
Reset the device so that it is in a known state before initiating the test procedure.
Configure the transmitter as described in the following steps (Table 54) and monitor the RF output on a
spectrum analyser.
Table 54: Register accesses required for transmitter configuration procedure
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