Overview: YDA142
D- 3D
DIGITAL INPUT STEREO 9.5W DIGITAL AUDIO POWER AMPLIFIER ■Overview
YDA142 (D-3D) is a 12V single supply voltage, high-efficiency digital audio power amplifier IC. An audio power amplifier with a maximum output of 9.5W (RL=8Ω) × 2ch or 19W (RL=4Ω) × 1ch can be configured with one chip. YDA142 has a “Pure Pulse Direct Speaker Drive Circuit” that directly drives speakers while reducing distortion of a pulse output signal and reducing noise on a signal, and it realizes the highest standard low distortion rate characteristics and low noise characteristics as compared with those of digital amplifier ICs in the same class. The circuit allows you to design a circuit with as few external parts as possible depending on use conditions because any filter is no longer required. It is possible to input a left-justified or right-justified 16bit/8bit digital audio signal of 32kHz, 44.1kHz, or 48kHz. In addition, YDA142 has a gain setting function in 32-level (analog setting) or 8-level (terminal setting). YDA142 has Over-current Protection function for speaker output terminals, IC Thermal Protection function, POP Noise Reduction function, and DC Input Detection function as well as Power-down function and Output Disable function.
