Analog Devices / Maxim Integrated MAX98374 Audio Amplifier
Analog Devices MAX98374 Audio Amplifier is a high-efficiency mono Class D speaker amplifier featuring Dynamic Headroom Tracking (DHT) and brownout protection. This DHT automatically optimizes the headroom available to the Class D amplifier to maintain a consistent listening experience. The wide 5.5V to 16V supply voltage range allows the device to exceed 16W into an 8Ω load. The Analog Devices MAX98374 audio amplifier features integrated thermal protection and output foldback, 110dB A-weighted dynamic range, extensive Click-and-Pop suppression, and good speaker efficiency. This amplifier is ideal for tablets, notebook computers, and sound bars.
Features
- 5.5V to 16V wide input supply voltage range
- DHT maintains a consistent listening experience
- Integrated thermal protection and output foldback
- Remote output sensing allows up to 20db THD+N improvement with ferrite bead filters
- Class D EMI reduction enables filterless operation
- Active Emissions Limiting (AEL)
- Spread-Spectrum Modulation (SSM)
- Switching edge rate control
- 110dB A-Weighted dynamic range
- 0.006% THD+N at 3W into 8Ω, f=1kHz
- 0.025% THD+N at 3W into 8Ω, f=6kHz
- Output power at 1% THD+N
- 13.5W into 8Ω, VPVDD=16V
- 12.5W into 4Ω, VPVDD=12V
- Output power at 10% THD+N
- 16.9W into 8Ω, VPVDD=16V
- 15.3W into 4Ω, VPVDD=12V
- Speaker amplifier efficiency
- 90.5% at 10W into 8Ω, VPVDD=12V
- 81% at 15.3W into 4Ω, VPVDD=12V
- BDE provides supply brownout protection
- Extensive click-and-pop suppression
- Space-saving packages
- 25-bump WLP (2.17mm x 2.25mm x 0.64mm, 0.4mm pitch)
- 22-pin FCQFN (3mm x 3mm x 0.55mm, 0.4mm pitch)
Applications
- Tablets
- Notebook computers
- Soundbars
Block Diagram
Associated Product
Analog Devices / Maxim Integrated MAX98374xEVSYS Evaluation System
Evaluates the MAX98374 mono class D audio amplifier featuring DHT and brownout protection.
Publié le: 2018-07-10
| Mis à jour le: 2023-04-25