The recommended power-up sequence is to apply VDD first, followed by VDDIO, and then the clock signal. This ensures proper device initialization and prevents potential latch-up conditions.
To minimize power consumption, use the device's power-down modes (e.g., D3, D2, or D1) when not in use. Additionally, adjust the clock frequency, reduce the analog supply voltage, and use the internal voltage regulator to minimize external voltage regulator losses.
The maximum allowed capacitance for the analog output filters is 10uF. Exceeding this value may compromise the device's stability and performance.
To configure the CS43198-CNZ for Master Clock Mode, set the MCLK pin as the clock source, and ensure the MCLK frequency is within the specified range (e.g., 10-50 MHz). Also, set the BCLK and LRCLK pins as outputs, and configure the device for the desired audio format.
Keep analog and digital signals separate, using separate ground planes and traces. Route analog signals away from digital signals, and use shielding or guard rings to minimize noise coupling. Follow the datasheet's recommended PCB layout guidelines for optimal performance.
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CS43198-CNZ Overview
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