EBWT32-A

EBWT32-A Datasheet

Part	Datasheet
EBWT32-A	EBWT32-A (pdf)

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WT32 EVALUATION KIT DATA SHEET Monday, 09 September 2013 Version Copyright 2000-2013 Bluegiga Technologies All rights reserved. Bluegiga Technologies assumes no responsibility for any errors which may appear in this manual. Furthermore, Bluegiga Technologies reserves the right to alter the hardware, software, and/or specifications detailed here at any time without notice and does not make any commitment to update the information contained here. Bluegiga’s products are not authorized for use as critical components in life support devices or systems. The WRAP, Bluegiga Access Server, Access Point and iWRAP are registered trademarks of Bluegiga Technologies. The Bluetooth trademark is owned by the Bluetooth SIG Inc., USA and is licensed to Bluegiga Technologies. All other trademarks listed herein are owned by their respective owners. Bluegiga Technologies Oy VERSION HISTORY Version Comment Pra MSa Pra Msa Minor changes Bluegiga Technologies Oy TABLE OF CONTENTS WT32 Evaluation Data Sheet 1 Introduction 2 Physical 3 Schematics 4 Assembly 13 5 Layout 14 6 Interfaces 18 Power 18 Stereo Line Input and Output 18 Microphone Input 18 SPI interface 18 UART Interface 19 USB 19 7 WEEE Compliance 19 8 Contact Information 20 Bluegiga Technologies Oy 1 Introduction • USB cable • Plantronics Stereo Headset • Evaluation kit for WT32 Bluetooth audio module containing o 290 mAh Li-Pol battery with USB battery charger and a LED indicator o RS-232 serial interface with DTR button o USB interface o SPI for upgrading the firmware and parameters o Reset and 4 software configurable buttons o 3 x 2,5mm audio jacks for line in, line out and microphone o 16 pin I/O interface PIO0 PIO10, AIO0 AIO1, PCM, UART, RESET, GND, 3V3 o Switchs for disabling RS232 driver and to connect a LED for PIO7 • Configurable audio interface consisting o A mono electric microphone input o A fully differential audio input / output through a pin header o Differential audio input and output through stereo jack connectors • iWRAP firmware Bluegiga Technologies Oy 2 Physical outlook Figure 1 WT32 evaluation kit, Onboard Installation Kit and headphones Bluegiga Technologies Oy 3 Schematics Figure 2 WT32 evaluation board schematic 1/6 Bluegiga Technologies Oy Figure 3 WT32 evaluation board schematic 2/6 Bluegiga Technologies Oy Figure 4 WT32 evaluation board schematic 3/6 Bluegiga Technologies Oy Figure 5 WT32 evaluation board schematic 4/6 Bluegiga Technologies Oy Figure 6 WT32 evaluation board schematic 5/6 Bluegiga Technologies Oy Figure 7 WT32 evaluation board schematic 6/6 Bluegiga Technologies Oy 4 Assembly Figure 8 WT32 evaluation kit assembly Bluegiga Technologies Oy 5 Layout Figure 9 Layout top layer Bluegiga Technologies Oy Figure 10 Layout second layer Bluegiga Technologies Oy Figure 11 Layout third layer Bluegiga Technologies Oy Figure 12 Layout bottom layer Bluegiga Technologies Oy 6 Interfaces Power Supply The evaluation kit is powered from a 290 mAh lithium polymer battery. The battery can be charged through the USB interface. The charger starts when the 5 V is applied from the USB interface. Stereo Line Input and Output Stereo line input and output are available on mm jack connectors. 1 MΩ resistors R6 and R7 remove any voltage charge on the connector and helps to prevent clicks and pops occurring when plugging the headphone for the first time. R9 + C15 and R8 + C14 make a Zobel network. Its purpose is to tune out the inductance of the speaker coil and there by reduce cross over distortion. The value the components depend on the properties of the speaker coil and alternative values for the components may be required depending on the design.

PDF Datasheet Preview

WT32 EVALUATION KIT

DATA SHEET

Monday, 09 September 2013 Version

Copyright 2000-2013 Bluegiga Technologies

All rights reserved. Bluegiga Technologies assumes no responsibility for any errors which may appear in this manual. Furthermore, Bluegiga Technologies reserves the right to alter the hardware, software, and/or specifications detailed here at any time without notice and does not make any commitment to update the information contained here. Bluegiga’s products are not authorized for use as critical components in life support devices or systems. The WRAP, Bluegiga Access Server, Access Point and iWRAP are registered trademarks of Bluegiga Technologies. The Bluetooth trademark is owned by the Bluetooth SIG Inc., USA and is licensed to Bluegiga Technologies. All other trademarks listed herein are owned by their respective owners.

Bluegiga Technologies Oy

VERSION HISTORY Version

Comment

Pra MSa Pra Msa Minor changes

Bluegiga Technologies Oy

TABLE OF CONTENTS

WT32 Evaluation Data Sheet
1 Introduction 2 Physical 3 Schematics 4 Assembly 13 5 Layout 14 6 Interfaces 18

Power 18 Stereo Line Input and Output 18 Microphone Input 18 SPI interface 18 UART Interface 19 USB 19 7 WEEE Compliance 19 8 Contact Information 20

Bluegiga Technologies Oy
1 Introduction
• USB cable
• Plantronics Stereo Headset
• Evaluation kit for WT32 Bluetooth audio module containing
o 290 mAh Li-Pol battery with USB battery charger and a LED indicator o RS-232 serial interface with DTR button o USB interface o SPI for upgrading the firmware and parameters o Reset and 4 software configurable buttons o 3 x 2,5mm audio jacks for line in, line out and microphone o 16 pin I/O interface PIO0 PIO10, AIO0 AIO1, PCM, UART, RESET, GND, 3V3 o Switchs for disabling RS232 driver and to connect a LED for PIO7
• Configurable audio interface consisting o A mono electric microphone input o A fully differential audio input / output through a pin header o Differential audio input and output through stereo jack connectors
• iWRAP firmware

Bluegiga Technologies Oy
2 Physical outlook

Figure 1 WT32 evaluation kit, Onboard Installation Kit and headphones Bluegiga Technologies Oy
3 Schematics

Figure 2 WT32 evaluation board schematic 1/6 Bluegiga Technologies Oy

Figure 3 WT32 evaluation board schematic 2/6 Bluegiga Technologies Oy

Figure 4 WT32 evaluation board schematic 3/6 Bluegiga Technologies Oy

Figure 5 WT32 evaluation board schematic 4/6 Bluegiga Technologies Oy

Figure 6 WT32 evaluation board schematic 5/6 Bluegiga Technologies Oy

Figure 7 WT32 evaluation board schematic 6/6 Bluegiga Technologies Oy
4 Assembly

Figure 8 WT32 evaluation kit assembly Bluegiga Technologies Oy
5 Layout

Figure 9 Layout top layer Bluegiga Technologies Oy

Figure 10 Layout second layer Bluegiga Technologies Oy

Figure 11 Layout third layer Bluegiga Technologies Oy

Figure 12 Layout bottom layer Bluegiga Technologies Oy
6 Interfaces

Power Supply

The evaluation kit is powered from a 290 mAh lithium polymer battery. The battery can be charged through the USB interface. The charger starts when the 5 V is applied from the USB interface.

Stereo Line Input and Output

Stereo line input and output are available on mm jack connectors. 1 MΩ resistors R6 and R7 remove any voltage charge on the connector and helps to prevent clicks and pops occurring when plugging the headphone for the first time.

R9 + C15 and R8 + C14 make a Zobel network. Its purpose is to tune out the inductance of the speaker coil and there by reduce cross over distortion. The value the components depend on the properties of the speaker coil and alternative values for the components may be required depending on the design.

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Datasheet ID: EBWT32-A 521940