The recommended power-up sequence is to apply VCC first, followed by AVCC, and then the analog input signals. This ensures proper internal biasing and prevents damage to the device.
To optimize the analog input stage, use a low-pass filter to remove high-frequency noise, and ensure the input signal is within the recommended common-mode voltage range (VCM). Also, use a high-impedance source and a low-capacitance layout to minimize loading effects.
The maximum clock frequency for the PCM1804 is 256 fs (fs = sampling frequency). However, it's recommended to use a clock frequency that is at least 10 times the sampling frequency to ensure proper operation.
To minimize the impact of clock jitter, use a high-quality clock source with low jitter (< 100 ps). Additionally, use a clock buffer or a jitter attenuator to reduce clock jitter. It's also recommended to use a sampling frequency that is not a multiple of the clock frequency to minimize jitter-induced errors.
To minimize noise and ensure proper operation, use a multi-layer PCB with a solid ground plane, and separate analog and digital grounds. Keep analog and digital signals separate, and use shielding or guard rings to reduce noise coupling. Also, use short, direct traces for the analog input signals and the clock signal.
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PCM1804S1IDBRQ1 Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
