PCM1773PW datasheet by Texas Instruments

PCM1773PW Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the PCM1773PW?
  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 the device is properly initialized.
• How do I optimize the performance of the PCM1773PW in terms of THD+N?
  To optimize the performance of the PCM1773PW in terms of THD+N, it is recommended to use a high-quality clock source, ensure proper power supply decoupling, and optimize the analog output filter design. Additionally, using a low-jitter clock and minimizing digital noise on the PCB can also help to improve THD+N performance.
• What is the maximum allowed clock jitter for the PCM1773PW?
  The maximum allowed clock jitter for the PCM1773PW is 100 ps RMS. Exceeding this limit can result in degraded THD+N performance and increased noise in the analog output.
• Can I use the PCM1773PW in a multi-channel audio application?
  Yes, the PCM1773PW can be used in a multi-channel audio application. The device has a built-in serial audio interface that allows it to be connected to multiple devices, and it can also be used in a daisy-chain configuration to support multiple channels.
• How do I implement a mute function using the PCM1773PW?
  The PCM1773PW has a built-in mute function that can be controlled using the MUTE pin. When the MUTE pin is pulled low, the analog output is muted. Additionally, the device also has a software-controlled mute function that can be implemented using the I2C interface.