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AK5374 - 24-bit Stereo ADC

General Description

The AK5374 is a stereo A/D converter with a USB 2.0 interface.

The device includes an integrated USB serial interface engine, a USB transceiver, an audio class processing block, endpoints, and a 24-bit stereo audio ADC.

An integrated PLL enables the use of multiple sampling frequencies.

Key Features

  •  USB 2.0 compliant (full speed audio class)  USB audio controller USB serial interface engine Audio class encoder/decoder  USB synchronization Synchronous type (synchronize with 1ms SOF)  24-bit stereo A/D converter with mute control S/(N+D) = 85dB, S/N = 91dB (AVDD=3.3V, MIC-Amp = 0dB) S/(N+D) = 70dB, S/N = 78dB (AVDD=3.3V, MIC-Amp = +30dB)  Microphone amplifier gain: 0dB, +6dB, +12dB, +18dB, +24dB, +30dB, +36dB  Digital programmable gain: +24dB ~ -31dB, 1dB Step  Integrated PLL supports.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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[AK5374] AK5374 24-bit Stereo ADC with USB Interface GENERAL DESCRIPTION The AK5374 is a stereo A/D converter with a USB 2.0 interface. The device includes an integrated USB serial interface engine, a USB transceiver, an audio class processing block, endpoints, and a 24-bit stereo audio ADC. An integrated PLL enables the use of multiple sampling frequencies. A microphone amplifier and an integrated programmable gain amplifier are available for processing low-level signals from an analog microphone element. An external EEP-ROM is used to store the descriptor information. The AK5374 is housed in a 36-pin package. It is a low power device, operating from +3.3V, and consuming just 100mW in active mode and less than 100μA in suspend mode. FEATURES  USB 2.