The recommended operating voltage range for the TDA1305T is 3.3V to 5V, although it can operate from 2.7V to 6V with reduced performance.
To ensure proper biasing, connect a 1kΩ to 10kΩ resistor between the VCC pin and the midpoint of the input resistors (Ri) to set the internal reference voltage. Additionally, decouple the VCC pin with a 100nF capacitor to ground.
The maximum input signal amplitude that the TDA1305T can handle is ±2V peak-to-peak, although it's recommended to keep the input signal amplitude below ±1.5V peak-to-peak to ensure optimal performance and prevent clipping.
To reduce noise and hum, use a well-regulated power supply, decouple the VCC pin with a 100nF capacitor to ground, and use a ground plane or star-grounding technique to minimize electromagnetic interference (EMI). Additionally, consider using a noise-reducing capacitor (e.g., 10nF) between the input pins and ground.
Yes, the TDA1305T can be used in a stereo audio application by using two devices, one for each channel. However, it's essential to ensure that the devices are properly matched and that the layout and grounding are done carefully to minimize crosstalk and noise.
