SSM2305RMZ-REEL7

ANALOG DEVICES  SSM2305RMZ-REEL7  音频功率放大器, D, 1通道, 2.8 W, 2.5V 至 5.5V, MSOP, 8 引脚

The is a Mono 2.8W Class-D Audio Power Amplifier designed to maximize performance for mobile phone applications. The application circuit requires a minimum of external components and operates from a single 2.5 to 5.5V supply. It is capable of delivering 2.2W of continuous output power with less than 1% THD + N driving a 4R load from a 5.0V supply. The SSM2305 features a high efficiency, low noise modulation scheme that does not require external LC output filters. The modulation provides high efficiency even at low output power. The SSM2305 operates with 90% efficiency at 1.3W into 8R or 83% efficiency at 2.2W into 4R from a 5.0V supply and has an SNR of >98dB. Spread-spectrum pulse density modulation is used to provide lower EMI-radiated emissions compared with other Class-D architectures. The fully differential input of the SSM2305 provides excellent rejection of common-mode noise on the input.

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Filterless class-D amplifier with Σ-Δ modulation

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No sync necessary when using multiple class-D amplifiers

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2.8W into 4R load and 1.6W into 8R load at 5V supply with <10% total harmonic distortion THD

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89% Efficiency at 5V, 1.3W into 8R speaker

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>98dB Signal-to-noise ratio SNR

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Single-supply operation from 2.5 to 5.5V

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20nA Ultralow shutdown current

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Short-circuit and thermal protection

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Pop-and-click suppression

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Built-in resistors reduce board component count

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Fixed and user-adjustable gain configurations

ESD sensitive device, take proper precaution while handling the device.