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YDA145 - MONAURAL 2.1W Non-Clip DIGITAL AUDIO POWER AMPLIFIER

Description

of operating functions

YDA145 has digital amplifiers with analog input, PWM pulse output, and maximum output of 2.1W(RL=4Ω)×1ch.

Distortion of PWM pulse output signal and noise of the signal is reduced by adopting “Pure Pulse Direct Speaker Drive Circuit”.

Features

  • m output 2.1 W×1ch (VDD=5.0V, RL=4Ω, THD+N=10%) 0.75 W×1ch (VDD=3.6V, RL=8Ω, THD+N=10%) Distortion Rate (THD+N) 0.03 % (VDD=3.6V, RL=8Ω, Po=0.4W, 1kHz) Residual Noise 45µVrms (VDD=3.6V, Av=18dB) www. DataSheet4U. com Efficiency 84 % (VDD=3.6V, RL=8Ω, Po=600mW) 78 % (VDD=3.6V, RL=8Ω, Po=100mW) S/N Ratio 94dB (VDD=3.6V, Av=18dB) Over-current Protection function Thermal Protection function Low voltage Malfunction Prevention function Pop noise reduction function Power-down control function Power-down.

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Datasheet preview – YDA145

Datasheet Details

Part number YDA145
Manufacturer YAMAHA CORPORATION
File Size 1.00 MB
Description MONAURAL 2.1W Non-Clip DIGITAL AUDIO POWER AMPLIFIER
Datasheet download datasheet YDA145 Datasheet
Additional preview pages of the YDA145 datasheet.

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Full PDF Text Transcription

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YDA145 D- 4H MONAURAL 2.1W Non-Clip DIGITAL AUDIO POWER AMPLIFIER ■Overview YDA145 (D-4H) is a digital audio power amplifier IC with maximum output of 2.1W (RL=4Ω)×1ch. YDA145 has a “Pure Pulse Direct Speaker Drive Circuit” which directly drives speakers while reducing distortion of pulse output signal and reducing noise on the signal, and realizes the highest standard low distortion rate characteristics and low noise characteristics among digital amplifier ICs for mobile use. In addition, circuit design with fewer external parts can be made depend on the condition of use because corresponds to filter less.
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