| # 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>; |
| }; |
| }; |
| |
| ... |
