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Datasheet

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Descrição

AT73C240 Stereo Audio DAC and Audio Power Amplifier

AT73C240 Stereo Audio DAC and Audio Power Amplifier Complete

(tamanho do arquivo: 1155710, 38 páginas, revisão A, atualizado: 4/09)

The AT73C240 is a fully integrated, low-cost, combined stereo audio DAC and audio power amplifier circuit targeted for Li-Ion or Ni-Mh battery powered devices such as mobile phones, smartphones, PDA, DECT phones, digital still cameras, music players or any other type of handheld device where an audio interface is needed.

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Integrated high-performance 20-bit stereo audio digital-to-analog converter (DAC) delivers a dynamic range up to 90dB. The audio power amplifier delivers up to 1W. The 32-Ohm stereo headset driver has programmable volume control and mute function. The stereo DAC includes multi-bit sigma-delta modulator with dither, continuous time analog filters, and analog output drive circuitry. The master clock is 256 or 384 times the sampling frequency, allowing input data rates up to 50kHz, including standard audio rates of 48, 44.1, 32, 16 and 8kHz. The stereo 32-Ohm headset drivers include a mixer for a pair of stereo inputs. Not recommended for new designs.

Principais parâmetros

Parâmetro
Valor

DAC:

2xAudio_16bit

Audio Amplifier:

1xSpeaker 2xHeadsets

Serial Interface:

Y