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Low-power stereo audio codec delivers high performance

AKM Semiconductor has introduced the AK4953A 24-bit low-power stereo audio codec aimed at delivering high-quality audio in mobile multimedia devices. Featuring a microphone, headphone and speaker amplifiers, the device consumes 3.3 mA in record mode and 3.6 mA in headphone playback mode.

The AK4953A operates from a 3.0- or 3.3-V typ core supply, with a 1.8-V digital supply and a speaker driver supply ranging from 0.9 to 5.5 V. Speaker driver output is up to 400 mW at -70 dB THD+N and 95 dB SNR.

Other key features include:

  • 96 dB dynamic range (ADC and DAC)
  • Digital ALC
  • 5-band EQ and notch
  • Wind noise reduction
  • Digital volume control (+12dB ~ -115dB, 0.5dB Step, Mute)
  • No output AC coupling capacitors
  • Sampling from 8 to 96 kHz
  • Integrated LDO

The AK4953A is available in a 36-pin 5 x 5 x 0.4-mm QFN package starting from $1.53 ea/10,000. Evaluation boards (AKD4953A) and samples are available now.

AKM Semiconductor , 888-256-7364, www.akm.com

Related links:
AK4953A information page
AK4953A datasheet (PDF)

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