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The MAX98395 digital input Class DG amplifier features industry-leading static power with IA/detection and dynamic margin tracking (DHT) technology. MAX98395 precision output current and voltage monitoring (1/V detection) supports speaker protection algorithms running through the host device. Spread-spectrum modulation (SSM) and edge-rate control minimise EMI and eliminate the need for output filtering found in conventional Class D devices.

The MAX98395 DG class amplifier incorporates two power rails, VBAT and PVDD, to power the speaker amplifier. In addition, the DHT automatically optimises the available margin of the DG class amplifier to maintain consistent distortion and listening levels due to sudden transients and variations in supply voltage caused by shortened battery life. the DHT module supports dynamic range compressors (DRC) and limiters (which can be used as signal distortion limiters (SDL) or standard signal level limiters (SLL)).

The MAX98395 features a PCM interface for audio data and a standard I2C interface for control data communication. the PCM interface provides audio playback via I2S, left-aligned and TDM audio data formats. In TDM mode, the device can support up to 16 channels of audio data. Due to the unique clock structure, no external master clock is required for PCM communication, thus reducing the pin count and simplifying the board layout.

The amplifier features thermal foldback protection to maintain normal operation when the thermal limits of the device are reached. When enabled, thermal foldback protection automatically reduces output power when the temperature exceeds a user-specified threshold.

The MAX98395 is available in a 0.4-mm pitch, 28-ball wafer-level package (WLP) and operates over an extended temperature range of -40°C to +85°C.

Product specifications

Type DG Class  

Output type 1-channel (mono)  

Maximum output power at different loads x number of channels 7.7W x 1 @ 8 ohms, 11.7W x 1 @ 4 ohms  

Voltage - Supply 1.14V ~ 14V  

Characteristics - Surface Mount  

Mounting Type Surface Mount  

Operating Temperature -40°C ~ 85°C (TA)  

Supplier Device Package 28-WLP (2.88x1.62)  

Package / Case 28-XFBGA, WLBGA

Applications

Mobile speakers

Smart speakers

Smart IoT

Tablet PCs

Laptops

Bar speakers

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  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

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  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

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  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

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