WT32-A-AI3
WT32-A-AI3 Datasheet
WT32
| Part | Datasheet |
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WT32-A-AI3 |
WT32-A-AI3 (pdf) |
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| WT32 DATA SHEET Tuesday, 25 August 2009 Version Copyright 2000-2009 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 New images added Missing pin added to recommended land pattern design Microphone biasing recommendation fixed. Voltage regulator enable pin description added. Some small fixes. Layout guidelines for the audio traces added. Version history added. Microphone biasing recommendations specified. Package information added. Pinout AIO0 and AIO1 fixed. VREG_ENA pin added to the production version of the module Layout recommendations added Fixed cross references Soldering recommendations added. Layout guide fixed. Details at VREG_ENA. Operating temperature range fixed. Bluetooth and FCC qualification IDs added Figure 18 fixed. Recommendation for external ESD protection removed. Changed VREG_ANA to VREG_ENA Radiocharacteristics updated List of pretested antennas added Bluegiga Technologies Oy TABLE OF CONTENTS 1 Ordering 7 2 Block Diagram and Descriptions 8 3 Electrical Characteristics 10 Radio Characteristics 15 Radiation Pattern WT32EK 15 4 WT32 Pin 16 Device Terminal 17 5 Power 22 Power Supply 22 Voltage Regulator Enable Pin 22 Battery Charger 23 RESET 24 6 Serial 25 UART 25 UART Configuration While RESET is Active 26 UART Bypass Mode 26 USB Interface 28 USB Pull-Up 28 Self Powered 28 Bus Powered 29 Suspend 29 Detach and Wake-Up 29 USB Driver 30 USB 30 USB Compatibility 30 SPI 31 7 Audio 32 Audio Interface 32 Audio Input and Output 32 Stereo Audio CODEC Interface 33 34 35 IEC 60958 Interface 36 Microphone Input 37 Line Input 39 Output Stage 39 Digital Audio Interface I2S 41 Bluegiga Technologies Oy PCM Interface 44 PCM Interface Master/Slave 44 Long Frame 45 Short Frame Sync 45 Multi Slot Operation 46 GCI 46 Slots and Sample 46 Additional Features 47 PCM CLK and SYNC Generation 47 PCM 48 8 I/O Parallel Ports 49 9 Software 50 iWRAP 50 RFCOMM Stack 51 VM Stack 52 10 Enhanced Data Rate 54 Enhanced Data Rate Baseband 54 Enhanced Data Rate ∏/4 DQPSK 54 11 Layout and Soldering 56 Soldering 56 Layout Guidelines 56 Audio Layout 56 Antenna Design 56 12 WT32 Physical Dimensions 59 13 Package 60 14 Certifications 62 Bluetooth 62 CE 64 Industry Canada 64 Pretested 65 15 RoHS Statement with a List of Banned 67 16 Contact 68 Bluegiga Technologies Oy WT32 Audio Module 1 Ordering Information WT32-A-AI Fimrware AI3 = iWRAP C = custom * HW version A= Chip antenna, industrial temperature range W.FL connector, industrial temperature range RF pin, industrial temperature range Product series * Custom firmware refers to any standard firmware with custom parameters like UART baud rate , custom firmware developed by customer, or custom firmware developed by Bluegiga for the customer. To order custom firmware, you must have a properly filled Custom Firmware Order Form and a unique ordering code issued by Bluegiga. Contact for more information. 2 Block Diagram and Descriptions Antenna Balanced filtter BC05-MM Baseband Radio Kalimba DSP Flash UART/USB PIO Audio In/Out PCM/I2S/SPDIF XTAL Reset circuitry Figure 1 Block diagram of WT32 BC05-MM The BlueCore05-MM is a single-chip radio and baseband IC for Bluetooth 2.4GHz systems. It provides a fully compliant Bluetooth system to v2.0+EDR of the specification for data and voice. BlueCore05-MM contains the Kalimba DSP co-processor with double the MIPS of BlueCore03-MM, supporting enhanced audio applications. BlueCore05-MM integrates a 16-bit stereo codec and it has a fully differential audio interface with a low noise microphone bias. Crystal The crystal oscillates at 26MHz. Flash Flash memory is used for storing the Bluetooth protocol stack and Virtual Machine applications. It can also be used as an optional external RAM for memory-intensive applications. Balanced Filter Combined balun and filter changes the balanced input/output signal of the module to unbalanced signal of the antenna. The filter is a band pass filter ISM band . Antenna WT32 uses ceramic chip antenna with high dielectric constant, which makes the antenna very insensitive to surrounding environment and thus gives high design freedom around the antenna. The USB interface is a full speed Universal Serial Bus USB interface for communicating with other compatible digital devices. WT32 acts as a USB peripheral, responding to requests from a Master host controller such as a Personal Computer PC . Synchronous Serial Interface This interface is a synchronous serial port interface SPI for interfacing with other digital devices. The SPI port can be used for system debugging. It can also be used for programming the Flash memory. UART This interface is a standard Universal Asynchronous Receiver Transmitter UART interface for communicating with other serial devices. PCM / I2S / SPDIF Interface This interface is a bi-directional serial programmable audio interface supporting PCM, I2S and SPDIF formats. Audio Interface The audio interface of WT32 has fully differential inputs and outputs and a microphone bias output. A high-quality stereo audio Bluetooth application can be implemented with minimum amount of external components. Programmable I/O WT32 has a total of 10 digital programmable I/O terminals. These are controlled by the firmware running on the device. Reset WT32 has a reset circuitry that is used to reset the module in the startup to ensure proper operation of the flash memory. Alternatively, the reset can be externally driven by using a WT32 reset pin. Coexistence Interface Dedicated hardware is provided to implement a variety of coexistence schemes. Channel skipping AFH Adaptive Frequency Hopping , priority signaling, channel signaling, and host passing of channel instructions are all supported. The features are configured in firmware. Since the details of some methods are proprietary e.g. Intel WCS , please contact Bluegiga Technologies for details. 3 Electrical Characteristics Absolute maximum ratings Storage temperature Operating temperature VDD_IO VDD_BAT VDD_CHG Terminal voltages Output current from PIOs Unit Vdd + 0,4 The module should not continuously run under these conditions. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability and cause permanent damage to the device. Table 1 Absolute maximum ratings Recommended operating conditions Operating temperature VDD_IO VDD_BAT VDD_CHG Terminal voltages Unit Table 2 Recommended operating conditions Terminal characteristics I/O voltage levels |
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