Maxim vil gøre det lettere at design klasse D forstærkere
Maxim lancerer klasse D audioforstærkere, der dels er lette at integrere i applikation og dels tilbyde høj audioperformance.
Maxim Integrated Products introduces two digital-input Class D power amplifiers that simplify designs, eliminate complicated programming, reduce noise, and hasten time to market. The MAX98355 (pulse-code modulation, PCM) and MAX98356 (pulse-density modulation, PDM) offer according to Maxim 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.
- These digital-input Class D amplifiers make system design nearly plug and play. This convenience reduces design complexity for the user, says Robert Nicoletti, Applications Manager at Maxim Integrated.
Key advantages is:
• 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 = 8Ω, POUT = 900mW, V¬DD = 3.7V)
• Smaller solution size and simplified design: 2.5V to 5.5V single-supply operation
