The part number "DAC8560IADGKR" is a Digital-to-Analog Converter (DAC) produced by Texas Instruments (TI). This IC is part of the DAC8560 family, which provides precision digital-to-analog conversion with a resolution of 16 bits and supports a wide range of applications such as industrial control, instrumentation, and consumer electronics.
Package Type for DAC8560IADGKR:
The "IADGKR" suffix indicates the package type, which is TSSOP-20 (Thin Shrink Small Outline Package, 20 pins).
Pin Function Specification and Circuit Principle
The DAC8560 operates as a 16-bit DAC with SPI interface and includes multiple functionalities like setting the reference voltage, Clock input, and digital control signals. It is used in a variety of applications such as signal processing, motor control, and measurement equipment.
The detailed pinout description and the functionality of each pin for the TSSOP-20 package is as follows:
Pin Number Pin Name Pin Description 1 VSS Ground (GND) pin for the IC. 2 VDD Power supply pin (typically 3.3V or 5V). 3 LDAC Load DAC register: Controls when the DAC register is loaded with the input data. 4 SCLK SPI Clock input: Provides the clock signal to synchronize data transfer. 5 SDI SPI Data Input: Serial data input pin for the DAC data transfer. 6 /CS Chip Select: Active-low signal that selects the DAC for communication. 7 VREF+ Reference Voltage Positive: Input for the positive reference voltage (typically 0V to 5V). 8 VREF- Reference Voltage Negative: Input for the negative reference voltage (typically 0V or GND). 9 DACOUT Analog Output: This is the DAC output voltage, proportional to the input data. 10 /CLR Clear: Clears the DAC data register when low. 11 NC No Connection: This pin is not used. 12 NC No Connection: This pin is not used. 13 NC No Connection: This pin is not used. 14 NC No Connection: This pin is not used. 15 NC No Connection: This pin is not used. 16 NC No Connection: This pin is not used. 17 NC No Connection: This pin is not used. 18 NC No Connection: This pin is not used. 19 NC No Connection: This pin is not used. 20 NC No Connection: This pin is not used.Additional Information on Pin Functions:
VDD & VSS are power supply pins, where VDD is typically connected to a voltage between 3.3V to 5V, and VSS is the ground reference. VREF+ and VREF- provide the reference voltage inputs for the DAC, controlling the output voltage range. SCLK, SDI, /CS are the SPI interface pins used for communication with the microcontroller or host device. The SCLK pin receives the clock signal, SDI is where the data is transmitted to the DAC, and /CS is used to activate the chip for data communication. LDAC is used to load the DAC with data from the input register, controlling when the DAC value is updated. /CLR clears the data register to reset the DAC to a known state. The DACOUT is the analog output pin, where the DAC's converted voltage can be measured or used in a circuit.Pin Function FAQs:
What is the function of the VDD pin in the DAC8560IADGKR? The VDD pin provides the power supply to the DAC8560IADGKR, typically operating between 3.3V and 5V. What voltage range should be applied to the VREF+ and VREF- pins? VREF+ and VREF- define the reference voltage range for the DAC output. VREF+ is typically between 0V and 5V, while VREF- is typically connected to ground. How is data transferred to the DAC8560IADGKR? Data is transferred via the SPI interface using the SDI (Serial Data Input) pin, controlled by the SCLK (Serial Clock) pin and activated by the /CS (Chip Select) pin. What is the purpose of the LDAC pin? The LDAC pin is used to load the DAC register with new data, allowing the DAC output to be updated accordingly. What does the /CLR pin do? The /CLR pin is used to clear the DAC data register, resetting the DAC to its initial state when set low. What is the DAC8560IADGKR's output voltage range? The output voltage range is determined by the reference voltage applied to VREF+ and VREF-. What is the role of the /CS pin in communication? The /CS pin activates the DAC8560IADGKR for communication when low, allowing data to be transmitted through the SPI interface. How does the SPI communication work for the DAC8560IADGKR? The DAC8560IADGKR uses SPI protocol to receive data via the SDI pin, synchronized by the clock signal on the SCLK pin. Can the DAC8560IADGKR be used with a 3.3V power supply? Yes, the DAC8560IADGKR can operate with a power supply voltage of 3.3V or 5V, with appropriate reference voltages applied.What is the function of the DACOUT pin?
The DACOUT pin is the analog output that provides the converted voltage corresponding to the input data values.Can the DAC8560IADGKR be used for high-speed applications?
The DAC8560IADGKR can support relatively high-speed SPI communication, but its speed is limited by the SPI clock rate and reference voltage applied.What happens if the VSS pin is not connected properly?
If the VSS pin is not connected to ground, the DAC may not function correctly or may fail to power on.How is the DAC data loaded into the DAC8560IADGKR?
The DAC data is loaded into the DAC8560IADGKR via the SPI interface when the LDAC pin is triggered to load the register.What is the significance of the NC pins?
The NC pins on the DAC8560IADGKR are not connected and have no electrical function. They can be ignored in circuit design.Is the DAC8560IADGKR suitable for industrial applications?
Yes, the DAC8560IADGKR is suitable for industrial applications where precision analog control is required.Can the DAC8560IADGKR be used with a microcontroller?
Yes, the DAC8560IADGKR can be interfaced with a microcontroller via the SPI interface for digital-to-analog conversion.What is the role of the VREF- pin in the DAC8560IADGKR?
The VREF- pin is connected to ground and provides the negative reference voltage for the DAC.What happens if the LDAC pin is not used?
If the LDAC pin is not used, the DAC may continuously output the most recent data without the option to load new data synchronously.What are the power consumption characteristics of the DAC8560IADGKR?
The power consumption depends on the supply voltage and the output load, but the DAC8560IADGKR is designed to be power-efficient in industrial applications.Can the DAC8560IADGKR handle both high and low resolution inputs?
The DAC8560IADGKR is a 16-bit DAC, which provides high-resolution output, but it can also accept lower-resolution data with proper scaling.Let me know if you need any further details or if you'd like any specific clarification.