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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright 2024 Analog Devices Inc.
%YAML 1.2
---
$id:
http://devicetree.org/schemas/iio/dac/adi,ad8460.yaml#
$schema:
http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices AD8460 DAC
maintainers:
- Mariel Tinaco <mariel.tinaco@analog.com>
description: |
Analog Devices AD8460 110 V High Voltage, 1 A High Current,
Arbitrary Waveform Generator with Integrated 14-Bit High Speed DAC
https://www.analog.com/media/en/technical-documentation/data-sheets/ad8460.pdf
properties:
compatible:
enum:
- adi,ad8460
reg:
maxItems: 1
clocks:
maxItems: 1
dmas:
maxItems: 1
dma-names:
items:
- const: tx
spi-max-frequency:
maximum: 20000000
hvcc-supply:
description: Positive high voltage power supply line
hvee-supply:
description: Negative high voltage power supply line
vcc-5v-supply:
description: Low voltage power supply
vref-5v-supply:
description: Reference voltage for analog low voltage
dvdd-3p3v-supply:
description: Digital supply bypass
avdd-3p3v-supply:
description: Analog supply bypass
refio-1p2v-supply:
description: Drive voltage in the range of 1.2V maximum to as low as
low as 0.12V through the REF_IO pin to adjust full scale output span
adi,external-resistor-ohms:
description: Specify value of external resistor connected to FS_ADJ pin
to establish internal HVDAC's reference current I_REF
minimum: 2000
maximum: 20000
default: 2000
adi,range-microvolt:
description: Voltage output range specified as <minimum, maximum>
items:
- minimum: -55000000
maximum: 0
default: 0
- minimum: 0
maximum: 55000000
default: 0
adi,range-microamp:
description: Current output range specified as <minimum, maximum>
items:
- minimum: -1000000
maximum: 0
default: 0
- minimum: 0
maximum: 1000000
default: 0
adi,max-millicelsius:
description: Overtemperature threshold
minimum: 0
maximum: 150000
default: 0
shutdown-reset-gpios:
description: Corresponds to SDN_RESET pin. To exit shutdown
or sleep mode, pulse SDN_RESET HIGH, then leave LOW.
maxItems: 1
reset-gpios:
description: Manual Power On Reset (POR). Pull this GPIO pin
LOW and then HIGH to reset all digital registers to default
maxItems: 1
shutdown-gpios:
description: Corresponds to SDN_IO pin. Shutdown may be
initiated by the user, by pulsing SDN_IO high. To exit shutdown,
pulse SDN_IO low, then float.
maxItems: 1
required:
- compatible
- reg
- clocks
- hvcc-supply
- hvee-supply
- vcc-5v-supply
- vref-5v-supply
- dvdd-3p3v-supply
- avdd-3p3v-supply
- refio-1p2v-supply
allOf:
- $ref: /schemas/spi/spi-peripheral-props.yaml#
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
dac@0 {
compatible = "adi,ad8460";
reg = <0>;
spi-max-frequency = <8000000>;
dmas = <&tx_dma 0>;
dma-names = "tx";
shutdown-reset-gpios = <&gpio 86 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpio 91 GPIO_ACTIVE_LOW>;
shutdown-gpios = <&gpio 88 GPIO_ACTIVE_HIGH>;
clocks = <&sync_ext_clk>;
hvcc-supply = <&hvcc>;
hvee-supply = <&hvee>;
vcc-5v-supply = <&vcc_5>;
vref-5v-supply = <&vref_5>;
dvdd-3p3v-supply = <&dvdd_3_3>;
avdd-3p3v-supply = <&avdd_3_3>;
refio-1p2v-supply = <&refio_1_2>;
adi,external-resistor-ohms = <2000>;
adi,range-microvolt = <(-40000000) 40000000>;
adi,range-microamp = <0 50000>;
adi,max-millicelsius = <50000>;
};
};
...
