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AK4538 - 16Bit CODEC

General Description

The AK4538 targeted at PDA and other low-power, small size applications.

Key Features

  • a 16-bit stereo CODEC with a built-in Microphone-Amplifier, Headphone-Amplifier and Speaker-Amplifier. Input circuits include a Microphone-Amplifier and an ALC (Auto Level Control) circuit. The AK4538 is available in a 52-QFN, utilizing less board space than competitive offerings.

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Other Datasheets by AKM (Asahi Kasei Microdevices)

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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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ASAHI KASEI [AK4538] AK4538 16Bit ∆Σ CODEC with MIC/HP/SPK-AMP GENERAL DESCRIPTION The AK4538 targeted at PDA and other low-power, small size applications. It features a 16-bit stereo CODEC with a built-in Microphone-Amplifier, Headphone-Amplifier and Speaker-Amplifier. Input circuits include a Microphone-Amplifier and an ALC (Auto Level Control) circuit. The AK4538 is available in a 52-QFN, utilizing less board space than competitive offerings. FEATURES 1. Resolution : 16bits 2. Recording Function • 1ch Mono Input • 1st MIC Amplifier : +20dB or 0dB • 2nd Amplifier with ALC : +27.5dB ∼ -8dB, 0.5dB Step • ADC Performance : S/(N+D) : 79dB, DR, S/N : 83dB 3. Playback Function • Digital De-emphasis Filter (tc=50/15µs, fs=32kHz, 44.1kHz, 48kHz) • Digital Volume (0dB ∼ -127dB, 0.