EKA8562A 查看數據表（PDF） - ELAN Microelectronics

零件编号

产品描述 (功能)

生产厂家

EKA8562A

USB Audio Controller

ELAN Microelectronics 

EKA8562A

USB Audio Controller

7 Function Description

The eKA8562A is a USB Audio Controller that transmits/receives audio data stream

to/from the host through its Audio Streaming interface. The Audio Data Format

supports 16-bit, 2-channel, and 48kHz PCM. It has three interfaces. Interface 1

supports three sampling frequencies. The sampling rate is changed when “Set

Endpoint Control Request” is issued. If user plays other format audio data, the

application software transforms it to 48kHz data and then transmit to this device. For

Interface 2, this device transmits data at a rate that is locked to frame timing. When

user use the recording format (ex. 8kHz) to record speech other than 48kHz stereo

format, the application software transforms 48kHz data to 8kHz data. Interface 3 is HID

pipe which is used to read button status.

The volume and mute control can be activated via host (audio device class requests) or

via I/O pins (HID plus audio device class requests). When this function is activated via

host, the host manages the audio PCM data directly. The eKA8562A device just

playback the audio data. Otherwise, when it is activated via I/O pins, the eKA8562A

sends the controlled feature (Key code) message through HID pipe and signals the

host to manage the audio PCM data and control the Skype phone directly.

8 Absolute Maximum Rating

Symbol

Min

Temperature under bias

0

Storage temperature

-65

Input voltage

-0.5

Output voltage

-0.5

Max

Unit

70

ºC

150

ºC

6.0

V

6.0

V

6•

Product Specification (V0.1) 04.24.2006

(This specification is subject to change without further notice)

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