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AN12942B Datasheet(PDF) 1 Page - Panasonic Semiconductor |
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AN12942B Datasheet(HTML) 1 Page - Panasonic Semiconductor |
1 / 31 page Publication date: June 2003 1 SDC00047AEB ICs for Audio Common Use AN12942B Audio signal processing IC for notebook PC Overview AN12942B is an one-chip IC for the stereo speakers which can output 1 W by 8 Ω, headphone amplifiers, line amplifiers, and electronic volumes. The AGC circuit is built-in to prevent the resonance or the vibration by the speaker’s energy and the clipping distortion what is called "broken up sound". Also the AN12942B is built-in power saving on/off function automatically detecting input signal to save the power of speaker amplifier. Features • Speaker amplifier 1 W × 2-channel: 8 Ω, VCC = 5 V • Built-in AGC circuit Prevention of the resonance or the vibration due to the speaker and the clipping distortion by AGC at excessive input signal (with AGC on/off switch). • Built-in automatic power saving function. It detects input signals and switches on/off (with the on/off switch for the auto power saving). •Built-in headphone amplifier and line amplifier Applications • Notebook PC Package • Dual surface implementing package (HSOP056-P-0300A) Type • Silicon monolithic bipolar IC |
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