資料介紹
Table of Contents
nanoDAC+ No-OS Driver
Supported Devices
Overview
The AD5673R, AD5674R, AD5676, AD5676R, AD5675, AD5675R, AD5677R, AD5679R,AD5686, AD5686R, AD5696, AD5696R / AD5685R, AD5695R / AD5672R, AD5671R, AD5684, AD5684R, AD5694, AD5694R, AD5681R, AD5682R, AD5683R, AD5683, AD5691R, AD5692R, AD5693R, AD5693 are low power, single-channel/octal/quad, 16-/14-/12-bit, buffered voltage output digital-to-analog converter (DAC). All devices operate from a single 2.7 V to 5.5 V supply and are guaranteed monotonic by design.
The AD5673R, AD5674R, AD5676, AD5676R, AD5675, AD5675R, AD5677R, AD5679R,AD5686, AD5686R, AD5696, AD5696R / AD5685R, AD5695R / AD5672R, AD5671R, AD5684, AD5684R, AD5694, AD5694R include a gain select pin giving a full-scale output of 2.5 V (gain = 1) or 5 V (gain = 2).
The AD5673R, AD5674R, AD5676, AD5676R, AD5675, AD5675R, AD5672R, AD5671R,AD5677R, AD5679R, AD5686, AD5686R, AD5685R, AD5684, AD5684R, AD5695R, AD5694, AD5694R, AD5696, AD5696R,AD5681R, AD5682R, AD5683R, AD5683, AD5691R, AD5692R, AD5693R, AD5693 also incorporates a power-on reset circuit and a RSTSEL pin that ensures that the DAC outputs power up to zero scale or midscale and remain there until a valid write takes place. Each device contains a per channel power-down feature that reduces the current consumption of the device to 2 μA/2.5 μA / 4 μA while in power-down mode.
The AD5674R, AD5676, AD5676R, AD5672R, AD5679R, AD5686, AD5686R, AD5685R, AD5684, AD5684R, AD5681R, AD5682R, AD5683R, AD5683 employs a versatile serial peripheral interface (SPI) that operates at clock rates up to 50 MHz.
The AD5673R, AD5675, AD5675R, AD5677R, AD5695R, AD5671R, AD5694, AD5694R, AD5696, AD5696R, AD5691R, AD5692R, AD5693R, AD5693 use a versatile 2-wire serial interface that operates at clock rates up to 400 kHz.
All devices contain a VLOGIC pin intended for 1.8 V/3 V/5 V logic.
Applications:
- Optical transceivers
- Base-station power amplifiers
- Industrial automation
- Data acquisition systems
Driver Description
Functions Declarations
Function | Description |
---|---|
int32_t ad5686_init(struct ad5686_dev **device, struct ad5686_init_param init_param); | Initialize the device. |
int32_t ad5686_remove(struct ad5686_dev *dev); | Free the resources allocated by ad5686_init(). |
uint16_t ad5686_set_shift_reg(struct ad5686_dev *dev, uint8_t command, uint8_t address, uint16_t data); | Write to input register. |
void ad5686_write_register(struct ad5686_dev *dev, enum ad5686_dac_channels channel, uint16_t data); | Write to Input Register n (dependent on LDAC). |
void ad5686_update_register(struct ad5686_dev *dev, enum ad5686_dac_channels channel); | Update DAC Register n with contents of Input Register n |
void ad5686_write_update_register(struct ad5686_dev *dev, enum ad5686_dac_channels channel, uint16_t data); | Write to and update DAC channel n . |
uint16_t ad5686_read_back_register(struct ad5686_dev *dev, enum ad5686_dac_channels channel); | Read back Input Register n. |
void ad5686_power_mode(struct ad5686_dev *dev, enum ad5686_dac_channels channel, uint8_t mode); | Power down the selected channels. |
void ad5686_ldac_mask(struct ad5686_dev *dev, enum ad5686_dac_channels channel, uint8_t enable); | Set up LDAC mask register. |
void ad5686_software_reset(struct ad5686_dev *dev); | Software reset (power-on reset) |
void ad5686_internal_reference(struct ad5686_dev *dev, uint8_t value); | Write to Internal reference setup register |
void ad5686_daisy_chain_en(struct ad5686_dev *dev, uint8_t value); | Set up DCEN register (daisy-chain enable) |
void ad5686_read_back_en(struct ad5686_dev *dev, uint8_t value); | Set up readback register (readback enable) |
int32_t ad5686_gain_mode(struct ad5686_dev *dev, uint8_t value); | Set gain mode (AD5683 family specific) |
Types Declarations
enum ad5686_type { ID_AD5671R, ID_AD5672R, ID_AD5673R, ID_AD5674R, ID_AD5675R, ID_AD5676, ID_AD5676R, ID_AD5677R, ID_AD5679R, ID_AD5686, ID_AD5684R, ID_AD5685R, ID_AD5686R, ID_AD5694, ID_AD5694R, ID_AD5695R, ID_AD5696, ID_AD5696R, ID_AD5681R, ID_AD5682R, ID_AD5683R, ID_AD5683, ID_AD5691R, ID_AD5692R, ID_AD5693R, ID_AD5693 }; ? enum comm_type { SPI, I2C, }; ? enum ad5686_dac_channels { AD5686_CH_0 = 0, AD5686_CH_1, AD5686_CH_2, AD5686_CH_3, AD5686_CH_4, AD5686_CH_5, AD5686_CH_6, AD5686_CH_7, AD5686_CH_8, AD5686_CH_9, AD5686_CH_10, AD5686_CH_11, AD5686_CH_12, AD5686_CH_13, AD5686_CH_14, AD5686_CH_15, }; ? struct ad5686_chip_info { uint8_t resolution; uint8_t register_map; enum comm_type communication; const uint32_t *channel_addr; }; ? struct ad5686_dev { /* I2C */ i2c_desc *i2c_desc; /* SPI */ spi_desc *spi_desc; /* GPIO */ gpio_desc *gpio_reset; gpio_desc *gpio_ldac; /* Device Settings */ enum ad5686_type act_device; uint32_t power_down_mask; uint32_t ldac_mask; }; ? struct ad5686_init_param { /* I2C */ i2c_init_param i2c_init; /* SPI */ spi_init_param spi_init; /* GPIO */ int8_t gpio_reset; int8_t gpio_ldac; /* Device Settings */ enum ad5686_type act_device; }; |
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