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Showing posts with the label Digital Audio Amplifier

60 W Quad Half-Bridge Digital Amplifier

General Description: The CS44130 is a high-efficiency power stage for digital Class-D amplifiers designed to recieve PWM signals from a modulator such as the CS44800/600. The power stage outputs can be configured as four half-bridge channels, two half-bridge channels and one full-bridge channel, two full-bridge channels, or one parallel full-bridge channel. Features:  Configurable Outputs (10% THD+N) – 2 x 30 W into 8 Ω, Full-Bridge – 1 x 60 W into 4 Ω, Parallel Full-Bridge – 4 x 15 W into 4 Ω, Half-Bridge – 2 x 15 W into 4 Ω, Half-Bridge + 1 x 30 W  into 8 Ω, Full-Bridge  Space-Efficient, Thermally-Enhanced QFN  Package  PWM Popguard® Technology for Quiet Startup  > 100 dB Dynamic Range - System Level  < 0.12% THD+N @ 1 W - System Level  Built-In Protection with Error Reporting – Over-Current – Thermal Warning – Thermal Fault – Under-Voltage  Single (+10.8 V to +21 V) High Voltage Supply  High Efficiency (90%)  Low RDS(ON)  Low Quiescent Current  Low Power Standby Mode Common Applications  …

3 BAND DIGITAL CONTROLLED AUDIO PROCESSOR

Circuit Diagram:

STEREO 25W (4Ω) CLASS-T™ DIGITAL AUDIO AMPLIFIER

General Description:
The TA2021B is a 25W (4Ω) continuous average per channel Class-T Digital Audio Power Amplifier IC using Tripath’s proprietary Digital Power Processing (DPPTM) technology. Class-T amplifiers offer both the audio fidelity of Class-AB and the power efficiency of Class-D amplifiers.

Applications 


DVD Receivers Mini/Micro Component Systems Computer / PC Multimedia Cable Set-Top Products Televisions Battery Powered Systems

Features:

Class-T architecture Single Supply Operation “Audiophile” Quality Sound 0.05% THD+N @ 13W 4Ω0.1% THD+N @15.5W 4Ω0.1% IHF-IM @ 1W 4ΩHigh Power 25W @ 4Ω, 10% THD+N, VDD=14.6V 23.5W @ 4Ω, 10% THD+N, VDD=14.2V 14W @ 8Ω, 10% THD+N, VDD=14.2V High Efficiency 88% @ 13.5W 8Ω81% @ 25W 4ΩDynamic Range = 100 dB Mute and Sleep inputs Turn-on & turn-off pop suppression Over-current protection Over-temperature protection Bridged outputs 36-pin PSOP “Slug-Up” package 

Circuit Diagram: