Maxim Integrated MAX98390 Digital Boosted DSM Smart Amplifier

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Maxim Integrated™ MAX98390 Digital Boosted Dynamic Speaker Management (DSM) Smart Amplifier is a high-efficiency mono class-D DSM smart amplifier. This amplifier features an integrated boost converter, integrated DSM, and FET scaling for high-efficiency at low output power. The MAX98390 smart amplifier is available in a 0.4mm pitch 36-bump Wafer-Level Package (WLP). This smart amplifier operates over an extended -40°C to 85°C temperature range. The maximum boost converter output voltage is programmable from 6.5V to 10V in 0.125V increments from a battery voltage as low as 2.65V. Applications include smartphones, tablets, notebook computers, single Li-ion cell devices, IoT devices, and toys.

Features

Integrated speaker current and voltage sense requires no external components
Integrated programmable 10V boost converter:
- Bypass mode
- Envelope tracking
Integrated dynamic speaker management:
- Thermal protection
- Excursion protection
- Low-frequency extension
- 8-band parametric equalizer
- Dynamic range compression
- Perceptual power reduction
- Debuzzer
- Stereo bass management

Dynamic speaker output FET scaling
I²S/16-channel TDM and I²C interfaces
Class-D edge rate control enables filterless operation
Advanced brownout-protection engine
Extensive click-and-pop suppression
Robust short-circuit and thermal protection
Space-saving and 36-bump WLP package (6.3mm² and 0.4mm pitch)

Specifications

Ultra-low noise floor:
- 9μV output noise
- 117dB dynamic range
Low distortion of 0.01% THD+N
Output power at 1% THD+N:
- 5.1W into 8Ω, V_VBAT = 4.3V
- 5.1W into 4Ω, V_VBAT = 4.3V

Output power at 10% THD+N:
- 6.2W into 8Ω, V_VBAT = 4.3V
- 6.2W into 4Ω, V_VBAT = 4.3V
System efficiency:
- 82% at 1.2W into 8Ω, V_VBAT = 3.7V
- 86% at 0.45W into 8Ω, V_VBAT = 3.7V

Applications

Smartphones
Tablets
Notebook computers
Single Li-ion cell devices

IoT devices
Toys

MAX98390 Simplified Block Diagram

Block Diagram - Maxim Integrated MAX98390 Digital Boosted DSM Smart Amplifier

Functional Block Diagram

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New Products in Maxim Integrated

Maxim Integrated MAX98390 Digital Boosted DSM Smart Amplifier

Features

Specifications

Applications

MAX98390 Simplified Block Diagram

Functional Block Diagram

Additional Resource

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New Products in Maxim Integrated

Maxim Integrated MAX98390 Digital Boosted DSM Smart Amplifier

Features

Specifications

Applications

MAX98390 Simplified Block Diagram

Functional Block Diagram

Associated Product

Maxim Integrated MAX98390 Evaluation Kit

PUI Audio Dynamic Speaker Management - Ready Micro Speaker

Additional Resource

QUICK LINKS

OFICINA DE SERVICIO AL CLIENTE

OFICINA DE SERVICIO AL CLIENTE

EMPRESA

Recursos

SOPORTE

Conéctese con nosotros