AK5388EQ

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In the field of data acquisition, most people know about analog to digital converters (ADC), digital to analog converters (DAC), and special purpose devices such as multiplexers and sample and holds. The Stmicroelectronics (STM) AK5388EQ is a special purpose field-programmable analogue chip dedicated to multi-channel sound recording applications. It has the capabilities to output 4 differential channels of 48bit audio data from analog sources, allowing various virtual control interfaces to be programmed.

The AK5388EQ is capable of inputting up to 8 channels of audio data in parallel and can output 8 channels of audio data in serial through either one of two differential output formats. It also supports simultaneous recording and playback of 8 channels in digital formats (I2S and MSB-justified). With its flexible architecture, the chip offers simple, multi-channel design solutions for many audio applications such as sound boxes, portable digital players, car audio systems and digital phones.

The Field-Programmable Analogue Logic (FPAL) technology that the AK5388EQ uses is the main attribute that makes it stand out from other data acquisition devices. This allows users to easily customize the chip to their own applications. This makes the chip an ideal solution for designers who require precise and flexible sound recording applications in their products. The on-chip programmability can be used to create smart shutoff sequences, pre-equalization filters, source specific equalization, and simultaneous recording and playback of various audio sources.

The AK5388EQ is a low power, low noise device that is capable of sampling audio signals at up to 48kHz with a maximum sampling rate of 192kHz, making it suitable for high quality audio applications. It has a minimum input impedance of 3V and a maximum output impedance of 200V and it supports several types of analogue and digital interfaces such as I2S, MSB-justified, L-R clock and I/O, PCM/A-law and 64Kb/s data transfer.

The AK5388EQ utilizes an advanced dual-mode ADC architecture that provides two independent data sectors with 8-bit resolution in each. This allows users to record audio signals with low distortion and a flat frequency response. It also provides excellent analog audio performance with a minimum signal-to-noise ratio (SNR) of 106dB and a total harmonic distortion + noise (THD+N) of less than 0.008%.

The AK5388EQ is a unique and reliable device for sound recording applications. With its advanced Field-Programmable Analogue Logic technology, it provides users with flexible and accurate audio recording solutions and can handle high-quality audio signals with minimal noise and distortion. It is an ideal choice for a wide range of audio applications and is sure to provide excellent performance in even the most demanding audio recording applications.

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