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WM8988 - Stereo CODEC

Description

The WM8988 is a low power, high quality stereo CODEC designed for portable digital audio applications.

The device integrates complete interfaces to 2 stereo headphone or line out ports.

External component requirements are drastically reduced as no separate headphone amplifiers are required.

Features

  • DAC SNR 100dB (‘A’ weighted), THD.
  • 90dB at 48kHz, 3.3V.
  • ADC SNR 93dB (‘A’ weighted), THD -81dB at 48kHz, 3.3V.
  • Programmable ALC / Noise Gate.
  • 2x On-chip Headphone Drivers - >40mW output power on 16 / 3.3V - THD.
  • 80dB at 20mW, SNR 90dB with 16 load.
  • Digital Graphic Equaliser.
  • Low Power - 7mW stereo playback (1.8V / 1.5V supplies) - 14mW record and playback (1.8V / 1.5V supplies).
  • Low Supply Voltages - Analogue 1.8V to 3.6V - Digital core: 1.42.

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Full PDF Text Transcription

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WM8988 Stereo CODEC for Portable Audio Applications DESCRIPTION The WM8988 is a low power, high quality stereo CODEC designed for portable digital audio applications. The device integrates complete interfaces to 2 stereo headphone or line out ports. External component requirements are drastically reduced as no separate headphone amplifiers are required. Advanced on-chip digital signal processing performs graphic equaliser, 3-D sound enhancement and automatic level control for the microphone or line input. The WM8988 can operate as a master or a slave, with various master clock frequencies including 12 or 24MHz for USB devices, or standard 256fs rates like 12.288MHz and 24.576MHz. Different audio sample rates such as 96kHz, 48kHz, 44.
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