The MAX98358 is a digital pulse-density modulated (PDM) input Class D power amplifier that provides Class AB audio performance with Class D efficiency. This IC offers five selectable gain settings (3dB, 6dB, 9dB, 12dB, and 15dB) set by a single gain-select input (GAIN). The IC can be configured to produce a left channel, right channel, or (left/2 + right/2) output from the stereo input data. The MAX98358 takes a stereo pulse density modulated (SPDM) input signal directly into the DAC. Data on the rising edge of PDMCLK is considered left-channel data while data on the falling PDMCLK edge is right channel. A mono sum feature is also implemented with SPDM data input by summing the data from both rising and falling clock edges. Active emissions-limiting, edge-rate limiting, and overshoot control circuitry greatly reduce EMI. A filterless spread-spectrum modulation scheme eliminates the need for output filtering found in traditional Class D devices and reduces the component count of the solution. The IC is available in 9-pin WLP (1.345mm x 1.435mm x 0.64mm) and 16-pin TQFN (3mm x 3mm x 0.75mm) packages and is specified over the -40°C to +85°C temperature range. Applications * Cellular Phones * Notebook and Netbook Computers * Portable Media Players * Tablets * Single-Supply Operation (2.5V to 5.5V) * 3.2W Output Power into 4Ω at 5V * 1.8mA Quiescent Current (VDD = 3.7V) * 92% Efficiency (RL = 8Ω, POUT = 1.5W) * 29µVRMS Output Noise (AV = 6dB) * Low 0.013% THD+N at 1kHz * Supported PDMCLK Rates of 1.84MHz–4.32MHz and 5.28MHz–8.64MHz * Supports Left, Right, or Left/2 + Right/2 Outputs * Sophisticated Edge Rate Control Enables Filterless Class D Outputs * 77dB PSRR at 217Hz * Low RF Susceptibility Rejects TDMA Noise from GSM Radios * Extensive Click-and-Pop Reduction Circuitry * Robust Short-Circuit and Thermal Protection * Available in Space-Saving Packages: 1.345mm x 1.435mm WLP (0.4mm Pitch), 3mm x 3mm TQFN https://elecena.pl/product/22334780/pdm-input-class-d-audio-power-amplifier 2022-12-28 https://elecena.pl/product/22334780/pdm-input-class-d-audio-power-amplifier 2024-11-03 https://elecena.pl/product/22334780/pdm-input-class-d-audio-power-amplifier 2024-11-09 https://elecena.pl/product/22334780/pdm-input-class-d-audio-power-amplifier 2025-01-19