TMS9914AJDL datasheet by Texas Instruments

TMS9914AJDL Frequently Asked Questions (FAQs)

• What is the recommended power-on sequence for the TMS9914AJDL?
  The recommended power-on sequence is to apply VCC first, followed by VDD, and then the clock signal. This ensures proper initialization of the device.
• How do I handle the analog and digital grounds (AGND and DGND) in my PCB design?
  It is recommended to connect AGND and DGND together at a single point, usually near the power supply, to minimize noise and ensure proper operation of the device.
• What is the maximum clock frequency that can be used with the TMS9914AJDL?
  The maximum clock frequency is 1.79 MHz, as specified in the datasheet. Exceeding this frequency may cause the device to malfunction or become unstable.
• How do I program the TMS9914AJDL to generate a specific audio tone or waveform?
  The TMS9914AJDL uses a proprietary programming method that involves writing specific values to the device's registers. Refer to the datasheet and application notes for detailed programming information.
• Can I use the TMS9914AJDL in a stereo audio application?
  Yes, the TMS9914AJDL can be used in stereo audio applications by using two devices, one for each channel. However, this requires careful synchronization of the clock signals and data inputs to ensure proper stereo operation.