Datasheet4U.com

AD1994 Datasheet PDF

Analog Devices AD1994

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. Both modulators can also control external power devices for arbitrarily high output power.
Part No. AD1994
Datasheet AD1994 Download
Manufacturer
Analog Devices
Description Audio Switching Amplifier
Buy Stock & Price
AD1994 datasheet page 1 preview

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

One of the two modulators can control both output stages providing twice the current and almost twice the efficiency for single-channel applications. A digital, microprocessor-compatible interface provides control of reset, mute, and PGA gain, as well as feedback signals for thermal and overcurrent error conditions. The output stage can operate over a power supply voltages range of 8 V to 20 V. The analog modulator and digital logic operate from a 5 V supply.

APPLICATIONS

Advanced televisions Compact multimedia systems Minicomponents FUNCTIONAL BLOCK DIAGRAM FEEDBACK NETWORK PVDD NFL+ PGA1 PGA0 AVDD NFL– DVDD A...
AD1994 page 2 preview AD1994 page 3 preview