With the MAX98357 and MAX98358 digital-input Class D audio power amplifiers by Maxim Integrated Products, designers can achieve high efficiency in a compact, cost-efficient solution. Despite their ultra-small form factors, these amplifiers deliver 3,2 W of Class AB audio performance for enhanced audio quality and are ideal for a wide variety of applications.
Traditionally, electronics designers use analog amplifiers requiring a digital-to-analog converter (DAC) and line driver amplifier on the application processor. This adds overall die cost to the speaker output and affects the form factor of the overall solution size.
The MAX98357 pulse-code modulation (PCM) and MAX98358 pulse-density modulation (PDM) speaker amplifiers reduce overall solution size by taking advantage of Maxim’s clever pin-out and by significantly reducing the number of required components compared to typical analog amplifier designs.
Since most customers control their volume digitally upstream, these features enable customers to take advantage of wafer-level packaging without the need for expensive vertical interconnect access (VIAs). The ICs feature a digital input for noise immunity, along with high jitter tolerance and excellent electromagnetic interference (EMI) performance allowing the use of longer traces to the speakers without added external filtering.
To simplify design, the chips only require users to connect a single power supply and feed the bit clock (BCLK) and left-right clock (LRCLK), without needing a master clock (MCLK). These amplifiers further simplify designs by auto-configuring for up to 35 different clocking configurations and 128 different digital audio formats. This automatic configuration eliminates complicated I²C programming as there is no need to rewrite base code to configure a design just to add audio functionality.
As more applications (such as smart speakers) start requiring multi-directional/channel audio, the need for amplifiers like the MAX98357 and MAX98358 that can be easily daisy-chained to support speaker arrays (up to 8 channels supported by time division multiplex) will continue to grow.
Digital isolators for I2C interfaces
Analogue, Mixed Signal, LSI
Würth Elektronik has expanded its range of digital isolators with 2-channel bidirectional isolators for I2C communication interfaces.
Read more...Powering smart sensor networks CST Electronics
Telecoms, Datacoms, Wireless, IoT
NeoCortec’s NeoMesh wireless mesh networking protocol and software stack is ideally suited for powering smart sensor networks where each device is required to send and receive small packets of data infrequently, but with high reliability.
Read more...Ultra-low-power smart metering EBV Electrolink
Analogue, Mixed Signal, LSI
ScioSense’s UFC23 sensor combines improved resolution and offset stability with ultra-low standby current, enabling high-end battery-powered water, heat, gas and leak detection meter designs.
Read more...Industrial vibration sensing simplified Altron Arrow
Analogue, Mixed Signal, LSI
The IIS3DWBG1 from STMicroelectronics is a high performance, three-axis digital vibration sensor engineered for demanding industrial applications where accurate motion monitoring is essential.
Read more...Understanding two key tools for cleaner serial data Altron Arrow
Editor's Choice Analogue, Mixed Signal, LSI
Understanding how pre-emphasis and equalisation works, and when to use one over the other, is critical when designing reliable high-speed systems.
Read more...Real-time monitoring for smart power distribution CST Electronics
Test & Measurement
By leveraging high-precision measurement, high-speed wave-recording, and AI-enabled analytics, the InHand Wireless Overhead-lines System empowers power utilities to accurately identify line faults and perform comprehensive load analysis.
Read more...Robust LoRaWAN for distributed IoT CST Electronics
Telecoms, Datacoms, Wireless, IoT
InHand Networks has unveiled its latest LoRaWAN gateway, the EC312, marking an evolution in industrial-grade connectivity solutions for distributed IoT environments.
Read more...5G mobile hotspot with integrated multimodal AI capabilities CST Electronics
Computer/Embedded Technology
MeiG Smart has launched its first 5G Mobile HotSpot solution, the SRT8710, a breakthrough in mobile connectivity that combines ultra-fast 5G communications with integrated multimodal artificial intelligence functions.
Read more...Smart IMU for high/low-g acceleration Altron Arrow
Analogue, Mixed Signal, LSI
The ISM6HG256X is a 6-axis intelligent inertial measurement unit that enables smart motion sensing, edge computing, and real-time awareness.
Read more...Compact Schottky diodes increase efficiency RS South Africa
Analogue, Mixed Signal, LSI
Gen 3 SiC Schottky diodes from Vishay in the compact SlimSMA HV package increase efficiency while enhancing electrical insulation.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version