The MAX98355 (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 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 high jitter tolerance, these parts provide superior audio quality while eliminating the need for programming for a faster time to market.
The MAX98355 offers excellent audio quality with a high jitter tolerance: low 0.013% THD+N at 1 kHz and 99 dB dynamic range. The device delivers lower power consumption: 92% efficiency (RL = 8 Ω, POUT = 900 mW, VDD = 3.7 V).
Availability and Pricing
The MAX98355 digital-input Class D power amplifiers are available in a 9-pin WLP package (1.345 mm x 1.435 mm x 0.64 mm). The device is specified over the -40 to +85°C temperature range. Pricing starts at $0.82 (1000-up, FOB USA).
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