A
Datasheet
BT900-SA-0x, BT900-SC-0x
Intelligent BTv4.0 Dual-Mode Module
Version 1.11
BT900-Sx
Datasheet
R
EVISION
H
ISTORY
Version
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
1.10
1.11
13 Feb 2015
24 Feb 2015
01 July 2015
21 July 2015
15 Oct 2015
19 Nov 2015
01 July 2015
30 Aug 2016
01 Feb 2017
03 May 2017
04 May 2017
Date
Notes
Initial Version
Added system clock and tick count period table.
Edits to clarify OTA app download works over VSP (command
mode)
Updated SPP range to reflect
Up to 600 kpbs
Added Tape and Reel information
Updated SIG Qualification section
Updated Reel photos with correct labels
Converted from HIG to Datasheet; changed to new template
Minor updates throughout. Added section on BLE vSP.
Updated Declarations of Conformity
Fixed error to Pin Definition table; removed
Do not connect
from
the Comment column of Pin 39
Updated the Declaration of Conformity with new RED standards
Fixed typo in DoC
Approver
Jonathan Kaye
Jonathan Kaye
Jonathan Kaye
Ben Whitten
Maggie Teng
Jonathan Kaye
Maggie Teng
Raj Khatri
Sue White
Raj Khatri
Jonathan Kaye
Sue White
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/bluetooth
2
© Copyright 2017 Laird. All Rights Reserved
Americas: +1-800-492-2320
Europe: +44-1628-858-940
Hong Kong: +852 2923 0610
BT900-Sx
Datasheet
C
ONTENTS
Overview and Key Features........................................................................................................................4
Specifications .............................................................................................................................................5
Hardware Specifications.............................................................................................................................7
Block Diagram and Pin-out .........................................................................................................................7
Pin Definitions ............................................................................................................................................8
Electrical Specifications ........................................................................................................................... 13
Power Consumption ................................................................................................................................ 18
Functional Description ............................................................................................................................ 20
Power Management (includes brown-out and power-on-reset)............................................................ 20
Clocks and Timers.................................................................................................................................... 21
Memory for
smart
BASIC Application Code and Data ............................................................................ 21
RF............................................................................................................................................................. 21
UART Interface ........................................................................................................................................ 22
SPI Bus ..................................................................................................................................................... 23
I2C Interface ............................................................................................................................................ 23
General Purpose I/O, ADC, PWM/FREQ and Host-wakeup .................................................................... 24
nRESET pin ............................................................................................................................................... 25
nAutoRUN pin ......................................................................................................................................... 25
smartBASIC
Runtime Engine Firmware Upgrade .................................................................................... 25
Wake-up BT900 ....................................................................................................................................... 25
Low Power Modes ................................................................................................................................... 25
BT and Wi-Fi Coexistence ........................................................................................................................ 26
BLE vSP modes ........................................................................................................................................ 26
BT900-SA On-board Chip Antenna Characteristics ................................................................................. 27
Hardware Integration Suggestions.......................................................................................................... 28
Circuit ...................................................................................................................................................... 28
PCB Layout on Host PCB - General .......................................................................................................... 30
PCB Layout on Host PCB for BT900-SA.................................................................................................... 30
External Antenna Integration with BT900-SC ......................................................................................... 31
Mechanical Details .................................................................................................................................. 32
Application Note for Surface Mount Modules ........................................................................................ 34
Introduction ............................................................................................................................................ 34
Shipping ................................................................................................................................................... 34
Reflow Parameters .................................................................................................................................. 38
FCC and IC Regulatory Statements.......................................................................................................... 40
Japan (MIC) Regulatory ........................................................................................................................... 43
CE Regulatory .......................................................................................................................................... 43
EU Declarations of Conformity ................................................................................................................ 44
Ordering Information .............................................................................................................................. 45
Bluetooth SIG Qualification ..................................................................................................................... 45
Additional Assistance .............................................................................................................................. 46
3.1.
3.2.
3.3.
5.1.
5.2.
5.3.
5.4.
5.5.
5.6.
5.7.
5.8.
5.9.
5.10.
5.11.
5.12.
5.13.
5.14.
5.15.
5.16.
6.1.
6.2.
6.3.
6.4.
8.1.
8.2.
8.3.
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/bluetooth
3
© Copyright 2017 Laird. All Rights Reserved
Americas: +1-800-492-2320
Europe: +44-1628-858-940
Hong Kong: +852 2923 0610
BT900-Sx
Datasheet
O
VERVIEW AND
K
EY
F
EATURES
BT900 Series modules from Laird make it easy to add Classic BT and Bluetooth Low Energy (BLE) functionality to
small, portable, power-conscious devices, including those powered by batteries. The fully approved,
programmable modules feature Laird’s innovative, event-driven
smartBASIC
programming language, which
significantly reduces OEM development risk and speeds time to market.
Based on the Cambridge Silicon Radio (CSR) 8811 silicon and a low power Cortex M3 microcontroller, the BT900
modules provide exceptionally low power consumption with outstanding wireless range, all within a compact
footprint of 19 mm x 12.5 mm. The modules incorporate all the hardware and firmware required to support
development of Dual Mode applications, including:
▪
Complete radio hardware
▪
UART, I2C, SPI, ADC, and GPIO interfaces
▪
Embedded BTv4.0 software stack
–
Classic BT profile - SPP
–
GATT Client and Peripheral modes
What makes the modules truly innovative is
smartBASIC,
an event-driven programming language that enables
standalone operation of the module. Laird has extended the implementation of
smartBASIC
from the popular
BL6xx series of single mode BLE modules into the BT900 series. This allows developers the flexibility of utilising
the Core and BLE specific
smartBASIC
functions from the BL6xx series to create fully interchangeable BLE
applications between these product ranges.
Without the need for any external processor, a simple
smartBASIC
application encapsulates the complete end-to-
end process of reading, writing, and processing of sensor data and then using Classic Bluetooth or BLE to transfer
it to / from any Bluetooth device. Ultimately
smartBASIC
accelerates initial development, creation of prototypes,
and mass production by providing you with your own Bluetooth expert within the module.
In addition to carrying FCC modular, IC, CE and MIC approvals, BT900 modules are fully qualified as a Bluetooth
product, enabling designers to integrate the modules in devices without the need for further Bluetooth testing. A
low-cost
developer’s kit including simple software tools simplifies module integration and guarantees the fastest
route to market.
Features and Benefits
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
Bluetooth v4.0 - Dual Mode (Classic Bluetooth and BLE)
External or Internal Antennas
smartBASIC programming language
Full Bluetooth EPL
Compact Footprint
Programmable TX power 8 dBm to -20 dBm
RX sensitivity: -90 dBm
Ultra low power consumption
TX: 85 mA peak (at +8dBm)
Standby Doze: 2.8 mA (see Power Consumption
Note 2)
Deep Sleep: 2.7 uA
UART, GPIO, ADC, PWM, FREQ output, TIMERS, I2C, and SPI
interfaces
Fast Time to Market
FCC, CE, IC, and Japan certified; other certs on request
No external components required
4
© Copyright 2017 Laird. All Rights Reserved
Application Areas
▪
▪
▪
▪
▪
▪
Medical devices
Wellness devices
Automotive Diagnostic
Equipment
Bar Code Scanners
Industrial Cable Replacement
Home automation
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/bluetooth
Americas: +1-800-492-2320
Europe: +44-1628-858-940
Hong Kong: +852 2923 0610
BT900-Sx
Datasheet
S
PECIFICATIONS
2.1.
Specification Summary
Feature
Bluetooth®
Frequency
Wireless
Specification
Transmit Power
Receive Sensitivity
Link Budget
Raw Data Rates (Air)
Implementation
V4.0
–
Dual-Mode
2.402 - 2.480 GHz
+ 8 dBm (maximum)
Configurable down to -20 dBm
-90 dBm (typical)
98 dB
3 Mbps (Classic BT
–
BR/EDR)
TX, RX, CTS, RTS
DTR, DSR, DCD, RI can be implemented in
smartBASIC-
using
General Purpose I/O
Default 115200, N, ,8, 1
From 1,200 to 921600
RX buffer size (1024 bytes)
18 (maximum
–
configurable) lines.
O/P drive strength (4 mA)
Pull-up resistor (33 KOhms) control (via
smartBASIC)
Read pin-level
1 (configurable from GPIO total). Up to 400 kbps
1 (configurable from GPIO total). Up to 4 Mbps
2 channels (configured from GPIO total).
Up to 12-bit resolution
Conversion time 2.0uS (at VCC 2.7V to 3.6V)
Reference voltage AVCC (external, same as VCC)
pre-scaling to match BL600 ADC
Output a PWM or FREQ on up to 3 GPIO output pins.
PWM output duty cycle: 0%-100%
PWM output frequency: 500 kHz
FREQ output frequency: 0 MHz to 4 MHz (50% duty cycle)
3 dedicated pins
SPP (Serial Port Profile)
–
Up to 600 kbps
GATT Client & Peripheral
–
Any Custom Services
7 clients
5 clients
On-board programming language similar to BASIC
Via UART or Over the Air
Table 1: Specifications
Categories
UART Interface
GPIO
Host Interface and
Peripherals
I2C Interface
SPI
ADC Interface
PWM or FREQ output
Wi-Fi-BT coexistence
Profiles
Maximum
Connections
Programmability
Classic Bluetooth
Bluetooth Low Energy
Classic Bluetooth
Bluetooth Low Energy
smartBASIC
smartBASIC
application
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/bluetooth
5
© Copyright 2017 Laird. All Rights Reserved
Americas: +1-800-492-2320
Europe: +44-1628-858-940
Hong Kong: +852 2923 0610
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