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AD1994

Analog Devices
Part Number AD1994
Manufacturer Analog Devices
Description Audio Switching Amplifier
Published Apr 25, 2007
Detailed Description Audio Switching Amplifier AD1994 FEATURES Integrated stereo modulator and power stage <0.005% THD + N 105 dB dynamic ran...
Datasheet PDF File AD1994 PDF File

AD1994
AD1994

Overview
Audio Switching Amplifier AD1994 FEATURES Integrated stereo modulator and power stage <0.
005% THD + N 105 dB dynamic range (A-weighted) 2 × 25 W output power (6 Ω, 10% THD + N) 1 × 50 W output power (3 Ω, 10% 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 AD1994 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.
One of the two modulators can control both output stages providing twice the current and almost twice the efficiency for single-channel applications.
Both modulators can also control external power devices for arbitrarily high output power.
A digital, microprocessor-compatible interface provides control of reset, mute, and PGA gain, as well a...


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