A good PCB layout for the TDA8034T/C1,112 involves keeping the input and output tracks as short as possible, using a solid ground plane, and placing decoupling capacitors close to the device. Additionally, it's recommended to use a separate analog and digital ground plane to minimize noise coupling.
To ensure proper powering and decoupling, connect the VCC pin to a stable 3.3V or 5V power supply, and add a 10uF ceramic capacitor between VCC and GND as close to the device as possible. Additionally, add a 100nF ceramic capacitor between AVCC and AGND for analog power supply decoupling.
The maximum clock frequency that can be used with the TDA8034T/C1,112 is 40MHz. However, it's recommended to use a clock frequency of 20MHz or lower to ensure reliable operation and minimize power consumption.
The TDA8034T/C1,112 can be configured for I2C or SPI interface by setting the appropriate pins high or low. For I2C interface, set the SCL pin high and the SDA pin as an open-drain output. For SPI interface, set the SCK pin high and the SDI pin as an input. Refer to the datasheet for specific pin configurations and timing diagrams.
The typical power consumption of the TDA8034T/C1,112 is around 10mA to 20mA, depending on the clock frequency, interface mode, and operating conditions. However, the maximum power consumption can be up to 50mA, so ensure that the power supply can handle the maximum current requirement.
TDA8034T/C1,112 datasheet
by NXP Semiconductors
