61 lines
1.7 KiB
YAML
61 lines
1.7 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iio/amplifiers/adi,hmc425a.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Analog Devices HMC425A and similar Digital Step Attenuators
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maintainers:
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- Michael Hennerich <michael.hennerich@analog.com>
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description: |
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Digital Step Attenuator IIO devices with gpio interface.
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Offer various frequency and attenuation ranges.
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ADRF5750 2 dB LSB, 4-Bit, Silicon Digital Attenuator, 10 MHz to 60 GHz
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https://www.analog.com/media/en/technical-documentation/data-sheets/adrf5740.pdf
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HMC425A 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.2 - 8.0 GHz
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https://www.analog.com/media/en/technical-documentation/data-sheets/hmc425A.pdf
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HMC540S 1 dB LSB Silicon MMIC 4-Bit Digital Positive Control Attenuator, 0.1 - 8 GHz
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https://www.analog.com/media/en/technical-documentation/data-sheets/hmc540s.pdf
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properties:
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compatible:
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enum:
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- adi,adrf5740
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- adi,hmc425a
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- adi,hmc540s
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vcc-supply: true
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ctrl-gpios:
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description:
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Must contain an array of 6 GPIO specifiers, referring to the GPIO pins
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connected to the control pins V1-V6.
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minItems: 6
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maxItems: 6
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required:
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- compatible
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- ctrl-gpios
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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gpio_hmc425a: hmc425a {
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compatible = "adi,hmc425a";
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ctrl-gpios = <&gpio 40 GPIO_ACTIVE_HIGH>,
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<&gpio 39 GPIO_ACTIVE_HIGH>,
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<&gpio 38 GPIO_ACTIVE_HIGH>,
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<&gpio 37 GPIO_ACTIVE_HIGH>,
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<&gpio 36 GPIO_ACTIVE_HIGH>,
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<&gpio 35 GPIO_ACTIVE_HIGH>;
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vcc-supply = <&foo>;
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};
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...
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