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.
The UDA1338H can be configured for master or slave mode by setting the appropriate values on the M/S and BCK pins. In master mode, the UDA1338H generates the clock signals, while in slave mode, it receives the clock signals from an external source.
The UDA1338H supports clock frequencies up to 50 MHz, but the maximum frequency depends on the specific application and the quality of the clock signal.
To optimize the UDA1338H for low power consumption, use the power-down mode, reduce the clock frequency, and minimize the analog power supply voltage. Additionally, use the digital power-down mode to reduce power consumption when the device is not in use.
The recommended layout and routing for the UDA1338H involves keeping the analog and digital signals separate, using a solid ground plane, and minimizing the length of the clock signal traces. Additionally, use a decoupling capacitor between the power supply pins and the ground pin.
UDA1338H/N1,557 datasheet
by NXP Semiconductors
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