The recommended power-up sequence is to apply VCC first, followed by VDD, and then the digital inputs. This ensures that the internal voltage regulators are powered up correctly and reduces the risk of latch-up or damage to the device.
To optimize the PCB layout, keep the analog and digital grounds separate, use a solid ground plane, and keep the analog signals away from the digital signals. Also, use a low-impedance power supply and decouple the power pins with capacitors to reduce noise and ensure stable operation.
The maximum clock frequency that can be used with the PCM1738E is 256 fs (fs = 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, or 192 kHz). However, the actual clock frequency used may be limited by the specific application and the quality of the clock signal.
To configure the PCM1738E for Master Clock mode, set the MCLK pin to the desired clock frequency, and set the BCK pin to the desired bit clock frequency. Then, set the LRCK pin to the desired word clock frequency, and configure the device for Master mode by setting the appropriate bits in the control register.
The recommended termination for the digital outputs of the PCM1738E is a 50-ohm resistor in series with a 50-pF capacitor to ground. This helps to reduce reflections and ensure reliable data transmission.
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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.
