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參數(shù)資料
| 型號(hào)： | MD-7EM |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 音頻模塊及開發(fā)工具 |
| 英文描述： | Class 1 Bluetooth Stereo Audio Module for High Performance Telephony Headsets, Enhanced Audio Applications, other A/V Applications |
| 中文描述： | Class 1藍(lán)牙立體聲音頻模塊，用于高性能電話耳機(jī)，其他阿增強(qiáng)的音頻應(yīng)用/ V應(yīng)用 |
| 文件頁數(shù)： | 7/11頁 |
| 文件大?。?/td> | 349K |
| 代理商： | MD-7EM |
12. USB Interface
MD-7EM USB devices contain a full speed (12Mbit/s) USB interface that is capable
of driving of a USB cable directly. No external USB transceiver is required. The device
operates as s USB peripheral, responding to requests from a master host controller
such as a PC. Both the OHCI and UHCI standards supported. The set of the USB
endpoints implemented behave as specification V1.2.
As USB is Master/Slave oriented system (in common with other USB peripheral), MD-
7EM only supports USB slave operation.
MD-7EM features an internal USB pull-up resistor. This pulls the USB+ pin weakly
high when MD-7EM is ready to enumerate. It signals to the PC that it is a full Speed
(12Mbit/s) USB device.
13. Audio Interface
The audio interface circuit consists of audio CODEC, dual audio inputs and outputs, and
a PCM, I2S or SPDIF configurable interface V1.2.
The CODEC supports stereo playback and recording of audio signals at multiple sample
rates with a resolution of 16-bit. The ADC and the DAC of the CODEC each contain two
independent channels. Any ADC or DAC channel can be run at its won independent
sample rate.
PCM Interface
SPDIF Interface
I2S Interface
PCM_OUT
SPDIF_OUT
SD_OUT
PCM_IN
SPDIF_IN
SD_IN
PCM_SYNC
WS
PCM_CLK
SCK
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