EKA8564A

USB Audio Controller

GeneralDescription TheeKA8564AisaUSBdigitalaudiocontrollerwithaudiodataprocessingthatsupports16-bit2-channelformatat48kHz,44.1kHz,32kHzor8kHzsamplingrate.ThedevicehasanintegratedUSBtransceiver,USBcore,MCU,DAC,ADC,andI2SInput/Output.Itcanhandleahigh-l

EKA8564A

USB Audio Controller; ■ USB Specification v1.1 Compliant\n■ USB Audio and Human Interface Device (HID) Class v1.1 Compliant\n■ Supports 12 Mbits/s Full Speed Serial Data Transmission\n■ Supports 48kHz, 44.1kHz, 32kHz, 8kHz sampling rate\n■ Single oscillator: 6MHz\n■ Audio buffer size: 192×16 bits × 2\n■ Total of four Endpoints: Endpoint 0 for control transfer, Endpoint 1 for audio streaming out, Endpoint 2 for streaming in , Endpoint 3 for HID\n■ Supports stereo/mono playback\n■ Built-in 2-channel D/A Converter with 10-bit resolution\n■ Built-in 1-channel A/D converter with 10-bit resolution\n■ Alternative settings supported by the audio streaming-out interface:\n   ALT-0: (default setting) zero isochronous bandwidth\n   ALT-1: 16-bit PCM 2 channel\n■ Alternative settings supported by the audio streaming-in interface:\n   ALT-0: (default setting) zero isochronous bandwidth\n   ALT-1: 16-bit PCM stereo\n■ 2K×13 on-chip program ROM\n■ 32 bytes of general purpose RAM (R20~R3F)\n■ RC Oscillator with internal RC\n■ 5 level stack for subroutine nesting\n■ Total of 8 HID control pins (Mute Speaker, Volume Down, Volume Up, Mute REC, Play/Pause, Stop, Scan next track, Scan previous track)\n■ Total of 4 LED output pins (REC Mute LED, Power LED, Play LED, SPK Mute LED)\n■ MCU run at 6 MHz frequency\n■ Package: 48-pin LQFPApplications\n■ USB Speaker\n■ USB Microphone\n■ USB Telephone ;

General Description\nThe eKA8564A is a USB digital audio controller with audio data processing that supports 16-bit 2-channel format at 48kHz, 44.1kHz, 32kHz or 8kHz sampling rate. The device has an integrated USB transceiver, USB core, MCU, DAC, ADC, and I2S Input/Output. It can handle a high-level USB protocol, and manages user interface via HID I/O pins.

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