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BT740-SC Datasheet(PDF) 3 Page - Laird Tech Smart Technology |
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BT740-SC Datasheet(HTML) 3 Page - Laird Tech Smart Technology |
3 / 31 page BT740 Datasheet Embedded Wireless Solutions Support Center: http://ews-support.lairdtech.com www.lairdtech.com/wireless 3 © Copyright 2015 Laird. All Rights Reserved Americas: +1-800-492-2320 Europe: +44-1628-858-940 Hong Kong: +852 2923 0610 CONTENTS Features & Benefits ................................................................................................................................................5 Application Areas....................................................................................................................................................5 Bluetooth® Profiles Supported...............................................................................................................................5 1 Specifications......................................................................................................................................................6 1.1 Detailed Specifications ...............................................................................................................................6 2 Hardware Specifications.....................................................................................................................................8 2.1 Hardware Specifications.............................................................................................................................8 2.2 Pin Definitions ............................................................................................................................................9 2.3 Electrical Specifications ........................................................................................................................... 11 2.3.1 Absolute Maximum Ratings............................................................................................................. 11 2.3.2 Recommended Operating Parameters............................................................................................ 11 3 I/O Characteristics ........................................................................................................................................... 13 3.1 Power Consumption ................................................................................................................................ 13 3.2 Typical Current Consumption in mA........................................................................................................ 13 4 Functional Description..................................................................................................................................... 14 4.1 UART Interface......................................................................................................................................... 14 4.2 SPI Bus ..................................................................................................................................................... 15 4.3 PCM Interface.......................................................................................................................................... 15 4.4 General Purpose I/O and ADC ................................................................................................................. 15 4.4.1 GPIO................................................................................................................................................. 15 4.4.2 ADC .................................................................................................................................................. 15 4.5 BT740-SA On-board Chip Antenna Characteristics ................................................................................. 15 5 Hardware Integration Suggestions.................................................................................................................. 16 5.1 Circuit....................................................................................................................................................... 16 5.2 PCB Layout on Host PCB - General .......................................................................................................... 16 5.3 PCB Layout on Host PCB for BT740-SA .................................................................................................... 17 5.3.1 Antenna keep-out on host PCB ....................................................................................................... 17 5.3.2 Antenna Keep-out and Proximity to Metal or Plastic...................................................................... 18 5.4 External Antenna Integration with BT740-SC.......................................................................................... 18 6 Mechanical Details .......................................................................................................................................... 19 6.1 BT740-SC Mechanical Details .................................................................................................................. 19 6.2 BT740-SA Mechanical Details .................................................................................................................. 19 |
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