General Description

The eKA8561A is a USB digital audio controller with audio data processing that supports 16-bit 2-channel format at 48 kHz sampling rate. The device has an integrated USB transceiver, USB core, DAC, ADC, and I2S Input/Output. It can handle a high-level USB protocol, and manages user interface via HID I/O pins.

Features

USB Specification v1.1 Compliant

USB Audio and Human Interface Device (HID) Class v1.1 Compliant

Supports 12 Mbits/s Full Speed Serial Data Transmission

Supports 48K, 44.1kHz, 32kHz, 8kHz sampling rate

Single oscillator: 6MHz

Audio buffer size: 192×16 bits ×2

Total of four Endpoints: Endpoint 0 for control transfer , Endpoint 1 for audio streaming out , Endpoint 2 for streaming in , Endpoint 3 for HID

Supports stereo/mono playback

Built-in 2-channel D/A Converter with 10-bit resolution

Built-in 1-channel A/D converter with 10-bit resolution

Alternative settings supported by the audio streaming-out interface:

ALT-0: (default setting) zero isochronous bandwidth

ALT-1: 16-bit PCM 2 channel

Alternative settings supported by the audio streaming-in interface:

ALT-0: (default setting) zero isochronous bandwidth

ALT-1: 16-bit PCM stereo

2 LED direct sink pins with internal serial resistor

RC Oscillator with internal RC

Total of 3 HID control pins (Mute Speaker, Volume Down, Volume Up)

Wake-up pin in HID control pin

Package: 48-pin LQFP