The recommended power-up sequence is to apply VCC first, followed by AVCC, and then the digital inputs. This ensures proper device operation and prevents potential latch-up conditions.
When using an external reference voltage, ensure it is within the specified range (1.2V to 2.5V) and that the output voltage range is adjusted accordingly using the gain and offset registers. Failure to do so may result in incorrect output voltages or device malfunction.
The maximum clock frequency for the DAC8564's serial interface is 50 MHz. Exceeding this frequency may result in data corruption or device malfunction.
The DAC8564 has a power-down mode that can be enabled by setting the PDWN pin low. This reduces the device's power consumption to near zero. However, ensure that the device is properly powered down and powered up to prevent potential latch-up conditions.
To minimize noise and ensure proper device operation, it is recommended to separate analog and digital signal traces, use a solid ground plane, and keep sensitive analog signals away from digital signals. Additionally, use a low-impedance path for the output voltage and ensure proper decoupling of the power supplies.
DAC8564IBPW datasheet
by Texas Instruments
