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AK4958 - 24bit Stereo CODEC

General Description

The AK4958 is a 24-bit stereo CODEC with a microphone, speaker, video amplifiers and LDO.

The input circuits include a microphone amplifier and the output circuits include a speaker amplifier.

It is suitable for portable application with recording/playback function.

Key Features

  • 1. Recording Functions.
  • Analog Input (AK4958EG) Stereo Single-ended input with two Selectors (AK4958ECB) Stereo Single-ended input.
  • Microphone Amplifier (+30dB, +25dB, +21dB, +18dB, +15dB, +12dB, +6dB, 0dB).
  • Digital ALC (Automatic Level Control) - Setting Range: +36dB  52.5dB, 0.375dB Step & Mute - Motor Noise Reduction Circuit.
  • ADC Performance: S/(N+D): 83dB, DR, S/N: 88dB (MIC-Amp=+18dB) S/(N+D): 85dB, DR, S/N: 96dB (MIC-Amp=0dB).
  • Microphone Sensitivity Compensation.

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Other Datasheets by AKM (Asahi Kasei Microdevices)

Part Number Description
AK4950 24bit Stereo CODEC
AK4951 24bit Stereo CODEC
AK4951A 24bit Stereo CODEC
AK4953A 24bit Stereo CODEC
AK4954A 32bit Stereo CODEC

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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[AK4958] AK4958 24bit Stereo CODEC with MIC/SPK/VIDEO-AMP & LDO GENERAL DESCRIPTION The AK4958 is a 24-bit stereo CODEC with a microphone, speaker, video amplifiers and LDO. The input circuits include a microphone amplifier and the output circuits include a speaker amplifier. It is suitable for portable application with recording/playback function. A one channel composite In/Out video amplifier is also integrated. The AK4958 is available in a small 32-pin BGA (3.5mm x 3.5mm, 0.5mm pitch: AK4958EG) and a 25-pin CSP (2.2mm x 2.2mm, 0.4mm pitch: AK4958ECB) packages saving mounting area on the board. FEATURES 1.