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[nrf fromlist] bindings: nrf21540: set default tx-en-settle-time-us to 26 #2833

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merged 1 commit into from
May 5, 2025
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[nrf fromlist] bindings: nrf21540: set default tx-en-settle-time-us to 26 #2833

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11 changes: 7 additions & 4 deletions dts/bindings/net/wireless/nordic,nrf21540-fem.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -95,13 +95,16 @@ properties:
This must be present to support SPI control of the FEM.
tx-en-settle-time-us:
type: int
default: 11
default: 26
description: |
Settling time in microseconds from state PG to TX.

Default value is based on Table 6 of the nRF21540 Product
Specification (v1.0), and can be overridden for tuned
configurations.
Default value of 11 microseconds is based on Table 6 of the nRF21540
Product Specification (v1.0). However the FEM must be ready when
the RF power starts to rise at the output of the SoC. That's why
the default value is increased by the time needed by the RF power
to rise at the output of the nRF5 SoCs.
This time can be overridden for tuned configurations.
rx-en-settle-time-us:
type: int
default: 11
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