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AD1990 - Audio Switching Amplifier

General Description

The AD1990 is a 2-channel, bridge tied load (BTL), switching audio power amplifier with integrated Σ-Δ modulator.

The modulator accepts a single-ended, analog input signal and converts it to a switching waveform to drive speakers directly.

Key Features

  • Integrated stereo modulator and power stage.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Audio Switching Amplifier AD1990 FEATURES Integrated stereo modulator and power stage <0.002% THD + N 101 dB dynamic range (A-weighted) 2 × 5 W output power (4 Ω, <0.01% THD + N) RDS-ON < 0.3 Ω (per transistor) PSRR > 65 dB On-off-mute pop noise suppression EMI optimized modulator Short-circuit protection Overtemperature protection Low cost DMOS process GENERAL DESCRIPTION The AD1990 is a 2-channel, bridge tied load (BTL), switching audio power amplifier with integrated Σ-Δ modulator. The modulator accepts a single-ended, analog input signal and converts it to a switching waveform to drive speakers directly. A digital, microprocessor-compatible interface provides control of reset, mute, and PGA gain, as well as feedback signals for thermal and overcurrent error conditions.