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linux-kernel/linux-7.2.3/Documentation/devicetree/bindings/iio/amplifiers/adi,adl8113.yaml
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2026-09-06 12:53:21 -06:00

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/amplifiers/adi,adl8113.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices ADL8113 Low Noise Amplifier with integrated bypass switches
maintainers:
- Antoniu Miclaus <antoniu.miclaus@analog.com>
description: |
The ADL8113 is a 10MHz to 12GHz Low Noise Amplifier with integrated bypass
switches controlled by two GPIO pins (VA and VB). The device supports four
operation modes:
- Internal Amplifier: VA=0, VB=0 - Signal passes through the internal LNA
- Internal Bypass: VA=1, VB=1 - Signal bypasses through internal path
- External Bypass A: VA=0, VB=1 - Signal routes from RFIN to OUT_A and from IN_A to RFOUT
- External Bypass B: VA=1, VB=0 - Signal routes from RFIN to OUT_B and from IN_B to RFOUT
https://www.analog.com/en/products/adl8113.html
properties:
compatible:
const: adi,adl8113
vdd1-supply: true
vdd2-supply: true
vss2-supply: true
ctrl-gpios:
items:
- description: VA control pin
- description: VB control pin
adi,external-bypass-a-gain-db:
description:
Gain in dB of external amplifier connected to bypass path A (OUT_A/IN_A).
When specified, this gain value becomes selectable via the hardwaregain
attribute and automatically routes through the external A path.
adi,external-bypass-b-gain-db:
description:
Gain in dB of external amplifier connected to bypass path B (OUT_B/IN_B).
When specified, this gain value becomes selectable via the hardwaregain
attribute and automatically routes through the external B path.
required:
- compatible
- ctrl-gpios
- vdd1-supply
- vdd2-supply
- vss2-supply
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
/* Basic configuration with only internal paths */
amplifier {
compatible = "adi,adl8113";
ctrl-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>,
<&gpio 23 GPIO_ACTIVE_HIGH>;
vdd1-supply = <&vdd1_5v>;
vdd2-supply = <&vdd2_3v3>;
vss2-supply = <&vss2_neg>;
};
- |
#include <dt-bindings/gpio/gpio.h>
/* Configuration with external bypass amplifiers */
amplifier {
compatible = "adi,adl8113";
ctrl-gpios = <&gpio 24 GPIO_ACTIVE_HIGH>,
<&gpio 25 GPIO_ACTIVE_HIGH>;
vdd1-supply = <&vdd1_5v>;
vdd2-supply = <&vdd2_3v3>;
vss2-supply = <&vss2_neg>;
adi,external-bypass-a-gain-db = <20>; /* 20dB external amp on path A */
adi,external-bypass-b-gain-db = <6>; /* 6dB external amp on path B */
};
...