MAX9867ETJ+T datasheet by Maxim Integrated Products

MAX9867ETJ+T Frequently Asked Questions (FAQs)

• What is the recommended PCB layout for the MAX9867ETJ+T?
  The recommended PCB layout for the MAX9867ETJ+T involves placing the device near the audio input connector, using a solid ground plane, and keeping the analog and digital grounds separate. A 4-layer PCB with a dedicated ground plane is recommended.
• How do I optimize the performance of the MAX9867ETJ+T in noisy environments?
  To optimize the performance of the MAX9867ETJ+T in noisy environments, use a low-pass filter on the input, add a shield around the device, and use a high-quality power supply with a low noise floor. Additionally, consider using a common-mode choke or a ferrite bead on the input lines.
• What is the maximum input voltage that the MAX9867ETJ+T can handle?
  The maximum input voltage that the MAX9867ETJ+T can handle is 3.6V. Exceeding this voltage may damage the device. It's recommended to use a voltage limiter or a clamp circuit to prevent overvoltage conditions.
• How do I configure the MAX9867ETJ+T for differential or single-ended input modes?
  To configure the MAX9867ETJ+T for differential input mode, connect the IN+ and IN- pins to the differential input signal. For single-ended input mode, connect the IN+ pin to the input signal and the IN- pin to ground. The device can be configured using the MODE pin or through the I2C interface.
• What is the recommended power-up sequence for the MAX9867ETJ+T?
  The recommended power-up sequence for the MAX9867ETJ+T is to first apply the analog power supply (AVDD), followed by the digital power supply (DVDD), and then the clock signal. This ensures proper device initialization and prevents latch-up conditions.