PCM2903BDBR datasheet by Texas Instruments

PCM2903BDBR Frequently Asked Questions (FAQs)

• What is the recommended power-up sequence for the PCM2903BDBR?
  The recommended power-up sequence is to apply VCC first, followed by VREF, and then the analog and digital inputs. This ensures proper device operation and prevents latch-up.
• How do I optimize the analog input impedance for the PCM2903BDBR?
  To optimize the analog input impedance, use a series resistor (Rs) and a capacitor (Cs) in parallel with the input signal. The values of Rs and Cs depend on the specific application and input signal characteristics.
• What is the maximum allowed clock jitter for the PCM2903BDBR?
  The maximum allowed clock jitter for the PCM2903BDBR is 100 ps. Exceeding this value may result in errors in the ADC conversion process.
• Can I use the PCM2903BDBR in a multi-channel audio application?
  Yes, the PCM2903BDBR can be used in a multi-channel audio application. However, each channel requires a separate ADC and DAC, and the device must be properly synchronized to ensure proper operation.
• How do I handle the digital output data from the PCM2903BDBR?
  The digital output data from the PCM2903BDBR is in 24-bit, 2's complement format. The data should be handled accordingly, taking into account the specific requirements of the downstream digital signal processing stages.