Analog Devices / Maxim Integrated MAX98363 SoundWire® Class D Amplifiers
Analog Devices MAX98363 SoundWire® Class D Amplifiers feature industry-leading Class AB audio performance with Class D efficiency. The tiny, low-cost, input Class D mono amplifiers incorporate an internal tone generator, interrupt control, and selectable slew-time settings for SoundWire data output PHY. A novel pinout provides users a way to implement the cost-effective wafer-level package (WLP) with no need for expensive in-pad vias.
Analog Devices MAX98363 SoundWire class D amplifiers support a MIPI SoundWire v1.2-compatible digital audio and control data interface. The digital interface is highly flexible and facilitates a variety of input clock frequencies. Selectable slew-time controls on the SoundWire data output PHY minimize EMI on a range of capacitive bus loads. A 1.8V nominal voltage supply operates the digital interface, which can be supplied externally or generated by an internal LDO. Furthermore, an internal tone generator, with various frequency options, allows in-factory testing or system boot-up sounds during system power-up.
The MAX98363 is specified over the -40°C to +85°C temperature range. and is available in a space-saving 9-Bump WLP package.
Features
- Single-supply operation (2.5V to 5.5V) for the MAX98363A/B
- 3.2W output power into 4Ω at 5V, THD+N = 10%
- 12.3mW quiescent power with external DVDDIO
- MIPI SoundWire v1.2 compliant
- Programmable slew rate on soundwire data output to help minimize EMI
- 92% efficiency (RL = 8Ω, THD+N = 10%)
- 12.8μVRMS output noise
- 108.5dB dynamic range
- Low 0.014% THD+N at 1kHz
- Sophisticated edge-rate control enables filterless class D outputs
- 82dB PSRR at 217Hz
- Low RF susceptibility rejects TDMA noise from GSM radios
- Class D switching frequency trimmed to 5% for better EMI planning
- Extensive click-and-pop reduction circuitry
- Robust short-circuit and thermal protection
- Internal tone generator for in-factory testing
- Available in space-saving 9-Bump WLP (1.528mm x 1.528mm, 0.4mm pitch) package
Applications
- Notebook computers
- Tablets
- IoT devices
- Gaming devices (audio and haptics)
- Smart speakers
- Smartphones
- Single Li-ion cell/5V devices
Associated Dev Boards
Analog Devices / Maxim Integrated MAX98363 (A/B/C/D) Development Boards
Boards are fully assembled and tested, allowing the evaluation of the MAX98363 amplifiers.
Simplified Block Diagram
