The world’s premier supplier o
USB Audio
Audio data converters with USB interfaces
USB has achieved the goal of simple connectivity for both computer and consumer devices. AKM
has devices that glue USB together with digital audio converters. Designed for consumer applications
including microphones and headsets. AKM’s USB audio products provide high quality audio for simple,
cost-sensitive consumer devices. These products are highly integrated, including the USB engine and
transceiver, audio converters, microphone and programmable gain amplifiers, FIFO, and Microwire™
EEPROM interface.
Stereo USB ADC
USB Audio CODEC
www.akm.com
AK5371A
• 16-bit stereo ADC with USB 1.1 interface
• Integrated USB engine and transceiver
• USB-IF certified
• Microphone amplifier:
• 0dB fixed gain
• PGA with -1dB to +4dB, 1dB / step
• Sampling rate: 8kHz to 48kHz
• High performance audio: 84dB SNR
• Integrated voltage reference
• Internal PLL generates audio clocks
• Low power: .V, 86mW, 1µA standby
• 48-pin QFN or 48-pin LQFP package
AK4571
• Audio CODEC with USB 1.1 interface
• ADC: mono, 16-bits, 8dB SNR
• DAC: stereo, 16-bits, 84dB SNR
• Integrated USB engine and transceiver
• Microphone amplifier:
• 0dB fixed gain
• Mixer: integrated attenuator, bass boost
• Control interface for headphone amp
• Human Interface Device control:
• Playback volume and mute
• Internal PLL generates audio clocks
• Low power: .V, 165mW,
• 48-pin LQFP package
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