eKA8564A

USB Audio Controller

Product Specification (V0.1) 09.08.2006

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(This specification is subject to change without further notice)

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General Description

The 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 I

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S

Input/Output. It can handle a high-level USB protocol, and manages user interface via

HID I/O pins.

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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 48kHz, 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

2K

×13 on-chip program ROM

32 bytes of general purpose RAM (R20~R3F)

RC Oscillator with internal RC

5 level stack for subroutine nesting

Total of 8 HID control pins (Mute Speaker, Volume Down, Volume Up, Mute REC,

Play/Pause, Stop, Scan next track, Scan previous track)

Total of 4 LED output pins (REC Mute LED, Power LED, Play LED, SPK Mute LED)

MCU run at 6 MHz frequency

Package: 48-pin LQFP