Maxim Integrated’s Digital Class D Speaker Amplifiers Significantly Simplify Design and Provide Unmatched Audio Performance

Maxim Integrated Products, Inc. (NASDAQ: MXIM) introduces two digital-input Class D power amplifiers that simplify designs, eliminate complicated programming, reduce noise, and hasten time to market. The MAX98355A (pulse-code modulation, PCM) and MAX98356 (pulse-density modulation, PDM) offer best-in-class clock jitter tolerance in Class D audio amplifiers and deliver superior audio quality.

Audio devices can now be simplified because unique internal circuitry in the MAX98355/MAX98356 detects the input clock and automatically calculates the sample rate. This reduces complicated programming and the need for system software support. With a digital input for noise immunity, and highest jitter tolerance, the parts provide superior audio quality while eliminating the need for programming for a faster time to market.

Key Advantages
  •     Improved audio quality from exceptionally high jitter tolerance: low 0.013% THD+N at 1kHz and 99dB dynamic range
  •     Lower power consumption: 92% efficiency (RL = 8ohms, POUT = 900mW, VDD = 3.7V)
  •     Smaller solution size and simplified design: 2.5V to 5.5V single-supply operation
Industry Commentary
  •     “These digital-input Class D amplifiers make system design nearly plug and play,” said Robert Nicoletti, Applications Manager at Maxim Integrated. “This convenience reduces design complexity for the user.”
  •     “Market analysis firm Databeans projects that the Class D audio amplifier market is growing at a compound annual growth rate of 12 percent each year, well above the overall consumer semiconductor market. By integrating digital DACs into the Class D audio amps, Maxim allows users to reduce solution size while still reaping all the benefits of a digital input,” said Susie Inouye, Research Director at Databeans.

Comments

Post a Comment

Popular posts from this blog

What is Class I Division 2?

Image
A Class I Division 2 is a location: (1) In which volatile flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are handled, processed, or used, but in which the liquids, vapors, or gases will normally be confined within closed containers or closed systems from which they can escape only in case of accidental rupture or breakdown of such containers or systems or in case of abnormal operation of equipment, or (2) In which ignitable concentrations of flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are normally prevented by positive mechanical ventilation, and which might become hazardous through failure or abnormal operation of the ventilating equipment. Class I Division 2 Classification Class I Division 2 refers to the ANSI/ISA 12.12.01 standard. This standard was previously UL1604 until UL recommended the newer ANSI/ISA standard be used and that all hazardous location products be certified under this standa
Read more

FUSE SIZING CONSIDERATIONS FOR HIGHER EFFICIENCY MOTORS

Image
When selecting the proper fuse for short circuit protection in motor starting applications, it is important to not only ensure that the fuse will not nuisance open during motor start up times, but also that the fuse will coordinate as required with overload relays. When sizing fuses between 125% and 150% of the motor nameplate current, several advantages, including ease of coordination with an overload device, a smaller disconnect, and increased short circuit protection from a lower fuse rating, can be achieved. However, if sizing at this level prevents the motor from starting, it may then be necessary to increase the fuse ampere rating and it then becomes important to know the NEC sizing limitations. As of June 1, 2016, the US Department of Energy has mandated that newly manufactured electric motors will need to meet NEMA Premium® efficiency standards. As motor efficiencies increase, motor locked rotor currents can also be expected to increase. In addition to this, with across-the-lin
Read more

7/8 16UN Connectors that Provide 600 Volts and 15 Amps

TURCK announces new A-Size 3 and 4-pin 7/8 16UN powerfast™ connectors that provide up to 600 Volts and 15 Amps of power. These IP67 rated connectors provide a modular wiring system designed to handle high current applications for machine power distribution, while providing resistance to vibration commonly associated with conveyors, motors and material handling applications. The cordsets are available with a tray rated, exposed run PVC flexlife ® cable, with or without STOOW rating, and 14 AWG wires that allow you to replace hard wiring with a robust, quick disconnect system that saves the time and money spent installing a conduit system. The A-Size powerfast line offers male and female, straight connectors, standard and custom lengths, and pigtails or extensions. To make the system complete, fully encapsulated mating receptacles, with 1/2”-14 NPT mounting threads are available.
Read more