Ehong EH-MB05, Руководство пользователя

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Bluetooth Audio Module
1. Contents
1.
2.
3.
4.
Description ................................................................................................................................................................ 4
Application ................................................................................................................................................................. 4
EH-MB05 Product numbering ............................................................................................................................. 4
Electrical Characteristic
........................................................................................................................................ 5
4.1. Recommend operation conditions ................................................................................................................. 5
Absolute Maximum Rating .............................................................................................................................. 5
Power consumptions ........................................................................................................................................ 6
Input/output Terminal Characteristics ........................................................................................................... 6
4.2.
4.3.
4.4.
4.4.1.
4.4.2.
4.4.3.
4.4.4. Digital Terminals ........................................................................................................................................ 6
USB
.............................................................................................................................................................. 7
Internal CODEC Analogue to Digital Converter ................................................................................. 7
Internal CODEC Digital to Analogue Converter ................................................................................. 8
5.
6.
Pinout and Terminal Description ........................................................................................................................ 9
5.1. Pin assignment .................................................................................................................................................. 9
Physical Interfaces
................................................................................................................................................ 11
6.1. Power Supply ................................................................................................................................................... 11
Reset .................................................................................................................................................................. 12
PIO ...................................................................................................................................................................... 12
AIO
...................................................................................................................................................................... 12
UART
.................................................................................................................................................................. 13
I2C Master
........................................................................................................................................................ 13
6.2.
6.3.
6.4.
6.5.
6.6.
6.6.1. Apple iOS CP reference design ........................................................................................................... 14
6.7. Digital Audio Interfaces .................................................................................................................................. 15
6.7.1
6.7.2 PCM ........................................................................................................................................................... 16
Digital Audio Interface (I S) .................................................................................................................. 16
2
6.7.3 IEC 60958 Interface (SPDIF)
............................................................................................................... 19
6.8 Microphone input
............................................................................................................................................. 20
Analog Output stage ....................................................................................................................................... 21
USB .................................................................................................................................................................... 21
6.9
6.10
7.
8.
EH-MB05 Reference Design ............................................................................................................................... 23
Mechanical and PCB Footprint Characteristics .......................................................................................... 24
Shanghai Ehong Technologies Inc