The recommended power-up sequence is to first apply the analog power supply (VDDA) and then the digital power supply (VDDD). This ensures that the analog circuitry is powered up before the digital circuitry.
To optimize for low power consumption, use the power-down modes (PDN and PDN2) to shut down unused blocks, reduce the clock frequency, and adjust the bias current. Additionally, use a low-power mode for the analog-to-digital converter (ADC) and digital-to-analog converter (DAC).
The maximum clock frequency supported by the UDA1334BTS/N2,112 is 50 MHz. However, the recommended clock frequency is 12.288 MHz for optimal performance.
To configure the UDA1334BTS/N2,112 for stereo audio applications, use the I2S interface and configure the device for stereo mode by setting the STEREO bit in the MODE register. Additionally, ensure that the left and right audio channels are properly routed to the corresponding pins.
The recommended layout and routing for the UDA1334BTS/N2,112 involves separating the analog and digital power supplies, using a star-ground configuration, and minimizing the length of the analog signal traces. Additionally, use a ground plane to reduce electromagnetic interference (EMI).