10비트 2채널 DAC53202 DAC 모듈 -I2C, SPI
(DAC 14 CLICK)
개요
- 본 제품은 10비트 2채널 DAC53202 DAC 모듈 -I2C, SPI입니다.
- 10비트 2채널 DAC53202 칩을 기반으로 디자인된 제품입니다.
- 고속 I2C 및 SPI 인터페이스를 지원하며, 프로그래밍 가능한 comparator mode를 지원합니다.
특징
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HOW DOES IT WORK?
DAC 14 Click is based on the DAC53202, a 10-bit dual-channel buffered digital-to-analog converter from Texas Instruments. The DAC channels are independently configurable as voltage or current output, achieved through the population of resistors R6 and R7. By default, these resistors are populated, and the Click board™ works in voltage-output mode providing output voltage in a range from 0V to 5V; to use current-output mode, they need to be removed. Both the voltage- and current-output modes support multiple programmable output ranges. In addition to the internal voltage reference of 1.21V, the DAC53202 also has the possibility of an external reference using mikroBUS™ power rails as a reference voltage.
The DAC53202 supports Hi-Z Power-Down mode putting its output in Hi-Z state during Power-OFF conditions, maintaining low leakage current at the output channels with up to 1.25V of forced voltage. Besides, it also supports an independent comparator mode for each channel. The comparator mode allows programmable hysteresis, latching comparator, window comparator, and fault-dump to the nonvolatile memory (NVM). These features enable the DAC53202 to go beyond a conventional DAC's limitations, resulting in processor-less operation. These features make the DAC53202 an excellent choice for voltage margining and scaling applications, DC set-point for biasing and calibration, and waveform generation (predefined sine, cosine, triangular, and sawtooth).
DAC 14 Click allows using both I2C and SPI interfaces with a maximum frequency of 1MHz for I2C and 50MHz for SPI communication. The selection can be made by positioning SMD jumpers marked as COMM SEL to an appropriate position. Note that all the jumpers' positions must be on the same side, or the Click board™ may become unresponsive. It also allows the choice of the four least significant bits of its I2C address by positioning the SMD jumper labeled ADDR SEL to an appropriate position providing the user with a selection of four addresses. The DAC53202 also possesses an additional general-purpose GP pin, routed to the INT pin of the mikroBUS™ socket, configured as multiple interrupt functions.
This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, it is allowed for both 3.3V and 5V capable MCUs to use the communication lines properly. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.
SPECIFICATIONS
Type DAC Applications Can be used for communications equipment, enterprise servers, test and measurement, and general-purpose power-supply modules On-board modules DAC53202 - 10-bit dual-channel buffered digital-to-analog converter from Texas Instruments Key Features Programmable outputs, flexible configuration, comparator mode for all channels, Hi-Z power-down mode, multifunction GPIO, selectable interface, and more Interface I2C,SPI Compatibility mikroBUS Click board size L (57.15 x 25.4 mm) Input Voltage 3.3V or 5V