LM4898MM/NOPB datasheet by Texas Instruments

LM4898MM/NOPB Frequently Asked Questions (FAQs)

• What is the maximum power supply voltage that can be used with the LM4898MM/NOPB?
  The maximum power supply voltage is 15V, but it's recommended to operate within 12V to ensure reliable operation and minimize heat generation.
• How do I ensure the amplifier doesn't oscillate or produce unwanted noise?
  To prevent oscillation and noise, ensure proper PCB layout, use a low-ESR capacitor for power supply decoupling, and add a 10nF capacitor between the BYPASS pin and ground.
• What is the recommended output impedance for the speaker?
  The recommended output impedance for the speaker is 4 ohms or higher to ensure stable operation and minimize distortion.
• Can I use the LM4898MM/NOPB in a bridged configuration?
  No, the LM4898MM/NOPB is not designed for bridged operation. It's intended for single-ended operation only.
• How do I protect the amplifier from overheating?
  Ensure good airflow around the device, use a heat sink if necessary, and implement thermal shutdown protection using an external thermostat or thermal sensor.