56 lines
1.6 KiB
YAML
56 lines
1.6 KiB
YAML
# Copyright (c) 2020-2021 Nordic Semiconductor ASA
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# SPDX-License-Identifier: Apache-2.0
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description: |
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This is a representation of generic radio Front-End Module (FEM)
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that has a two-pin control interface (CTX, CRX).
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The CTX control pin is used to enable the Power Amplifier (PA) in
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the transmit path. This is therefore sometimes referred to as
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the "PA pin" in other contexts.
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The CRX control pin is used to enable the Low Noise Amplifier
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(LNA) in the receive path, and is sometimes referred to as
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the "LNA pin" in other contexts.
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Each of these pins is optional, and may be omitted if not present.
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(Though if you do specify a pin, you must also specify its
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corresponding settle-time-us property.)
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compatible: "generic-fem-two-ctrl-pins"
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include: base.yaml
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properties:
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ctx-gpios:
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type: phandle-array
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description: |
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SoC GPIO connected to the CTX input pin on the FEM device.
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crx-gpios:
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type: phandle-array
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description: |
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SoC GPIO connected to the CRX input pin on the FEM device.
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ctx-settle-time-us:
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type: int
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description: |
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Desired minimum settling time, in microseconds, from
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assertion of the CTX pin to beginning of transmission.
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crx-settle-time-us:
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type: int
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description: |
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Desired minimum settling time, in microseconds, from
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assertion of the CRX pin to beginning of reception.
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tx-gain-db:
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type: int
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description: |
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TX gain of the PA of the FEM device, in dB.
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rx-gain-db:
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type: int
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description: |
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RX gain of the LNA of the FEM device, in dB.
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