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A High Efficiency Filter-less Class-D Audio Power Amplifier
https://www.researchgate.net/publication/251909464_A_High_Efficiency_Filter-less_Class-D_Audio_Power_Amplifier
The high efficiency pulse-width modulation (PWM) buck converter is used to supply 1.5 V for the class D amplifier. The operating voltage range can be …
High-Efficiency Class D Audio Amplifiers | Maxim Integrated
https://www.maximintegrated.com/en/design/technical-documents/tutorials/1/1760.html
A Class D amplifier like the MAX9701 offers Class AB performance with Class D efficiency. The device's unique, filterless modulation scheme, synchronizable switching frequency, and spread-spectrum switching mode create a compact, flexible, …
Filterless, High Efficiency, Mono 3 W Class-D Audio ...
https://www.analog.com/media/en/technical-documentation/data-sheets/SSM2315.pdf
The SSM2315 is a fully integrated, high efficiency, Class-D audio amplifier. It is designed to maximize performance for mobile phone applications. The application circuit requires a minimum of external components and operates from a single 2.5 V to 5.5 V supply. It is capable of delivering 3 W of continuous output power
NCP2823 - High Efficiency 3W Filterless Class D …
https://www.mouser.com/datasheet/2/308/NCP2823-D-59888.pdf
High Efficiency 3W Filterless Class D Audio Amplifier The NCP2823A/B are cost effective mono audio power amplifiers designed for portable electronic devices. NCP2823A is optimized for 8 operation and NCP2823B can operate with speaker impedance down to 4.0 . For Instance, NCP2823B is capable of delivering 3 W of continuous average power to a 4.0 from a 5.0 V …
EETimes - Filterless Class D simplifies audio amplifier …
https://www.eetimes.com/filterless-class-d-simplifies-audio-amplifier-design/
ADVANTAGES OF CLASS D AMPLIFIERS OVER CLASS AB AMPLIFIERS. The advantage of Class D is increased efficiency. Increased efficiency means lower supply current, longer battery life and less heat dissipation. Class D amplifiers have lower supply current: Class D amplifiers can drive the same output power as a Class AB amplifier using less supply current. …
Filterless, High Efficiency, Mono 2.5 W Class-D Audio ...
https://www.analog.com/media/en/technical-documentation/data-sheets/SSM2377.pdf
Filterless, Class-D amplifier with spread-spectrum Σ-Δ modulation . 2.5 W into 4 Ω load and 1.4 W into 8 Ω load at 5.0 V supply with <1% total harmonic distortion plus noise (THD + N) 92% efficiency at 5.0 V, 1.4 W into 8 Ω speaker >100 dB signal-to-noise ratio (SNR) High PSRR at 217 Hz: 80 dB . Ultralow EMI emissions
3.2W, High-Efficiency, Low-EMI, Filterless, Class D Audio ...
https://www.maximintegrated.com/en/products/analog/audio/MAX9759.html
Filterless Amplifier Passes FCC Radiated Emissions Standards with 7.6cm of Cable ; 92% Efficiency ; High PSRR (81dB at 1kHz) Low 0.02% THD+N ; External Clock Synchronization for Multiple, Cascaded Maxim Class D Amplifiers ; 3.0V to 5.5V Single-Supply Operation ; Pin-Selectable Gain (6dB, 12dB, 18dB, 24dB) Integrated Click-and-Pop Suppression
2.8W, Low-EMI, Stereo, Filterless Class D Audio Amplifier
https://www.maximintegrated.com/en/products/analog/audio/MAX9715.html
Portable Audio. Description. The MAX9715 high-efficiency, stereo, Class D audio power amplifier provides up to 2.8W per channel into a 4Ω speaker with a 5V supply. Maxim's second-generation Class D technology features robust output protection, high efficiency, and high power-supply rejection (PSRR) while eliminating the need for output filters.
31 W, Filterless, Class-D Digital Input Audio Amplifier ...
https://www.analog.com/media/en/technical-documentation/data-sheets/SSM3515.pdf
Filterless digital input, mono Class-D amplifier Operates from a single 4.5 V to 17 V supply 31.3 W output power, 17 V supply, and 4 Ω load at 1% THD + N 107 dB A-weighted signal-to-noise ratio 93.3% efficiency into 8 Ω load at 12 V I2C control with up to 4 pin selectable slots/addresses Supports multiple serial data formats up to TDM16
MAX9879 Stereo Class D Audio Subsystem with …
https://www.maximintegrated.com/en/products/analog/audio/MAX9879.html
The MAX9879 combines a high-efficiency stereo Class D audio power amplifier with a stereo capacitor-less DirectDrive ® headphone amplifier. Maxim's filterless class D amplifiers with active emissions limiting technology provide Class AB performance with Class D efficiency. The Class D power amplifier delivers up to 715mW from a 3.7V supply into an 8Ω load with 88% efficiency …
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