BTM420 LSTD | Alldatasheet
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Hardware Integration Guide Version 3.3 Americas: +1-800-492-2320 Europe: +44-1628-858-940 Hong Kong: +852 2923 0610 www.lairdtech.com/wireless
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REVISION HISTORY
Revision Date Description Approved By 1.0 22 June 2010 Initial Release Jonathan Kaye 2.0 28 May 2012 Changes and Revisions Jonathan Kaye 3.0 04 Jan 2013 Formatting, New Hardware Diagrams, FCC Statement updates Jonathan Kaye 3.1 16 Jan 2014 Changed document name from User Manual to Hardware Integration Guide Sue White 3.2 05 Feb 2014 Added the Bluetooth SIG Approvals section Jonathan Kaye 3.3 03 Sept. 2014 Updated EU Declaration of Conformity Jonathan Kaye
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CONTENTS
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1 OVERVIEW AND KEY FEATURES
The BTM420 and BTM421 Bluetooth modules from Laird Technologies have been designed to meet the needs of developers who wish to add robust, short range Bluetooth data connectivity to their products and who are using embedded Bluetooth stacks within their products. They are based on the market leading Cambridge Silicon Radio BC04 chipset, providing exceptionally low power consumption with outstanding range. They support the latest Bluetooth Version 2.1 Specification with EDR (Enhanced Data Rate). As well as increasing data throughput up to 2.1 Mbps, this provides the important advantage of Secure Simple Pairing, which improves security and enhances the ease of use for end customers. With physical sizes as small as 12.5mm x 18.0mm and best of class, low power performance, these modules are the ideal choice for applications where designers need both performance and minimum size. For maximum flexibility in systems integration, the modules are designed to support separate power supplies for I/O and the USB interface. These modules present an HCI interface through a USB interface and are fully qualified as Bluetooth Controller Subsystem Products. This allows designers to integrate them existing pre-approved Bluetooth Host and Profile subsystem stacks to gain a Bluetooth END product approval for their product. A low cost developer’s kit is available for prototyping. This ensures that the choice of Laird Technologies Bluetooth modules guarantees the fastest route to market.
1.1 Features and Benefits
Bluetooth v2.1+EDR Adaptive Frequency Hopping to cope with interference from other wireless devices Support for Secure Simple Pairing External or internal antenna options HCI Interface over USB Bluetooth controller subsystem product qualified Compact size Class 2 output – 4dBm Low power operation USB interface Multipoint Support PCM & SCO for external codec Wi-Fi coexistence hardware support
1.2 Application Areas
Embedded devices Phone accessories Security devices Medical and wellness devices Automotive applications Bluetooth® advertising ePOS
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2 SPECIFICATIONS
2.1 Detailed Specifications
Table 1: Detailed Specifications Categories Feature Implementation Wireless Specification Bluetooth® Version 2.1+EDR Transmit Class Class 2 Frequency 2.402 – 2.480 GHz Channels 79 channels Frequency Hopping Adaptive Frequency Hopping Max Transmit Power +4 dBm at antenna pad – BTM420 +4 dBmi (TBC) from integrated antenna – BTM421 Receive Sensitivity -84dBm Range 30m Data Transfer Rate Up to 2.1 Mbps Antenna Modes External Antenna 50 Ohm matched SMT pad – BTM420 Integrated Antenna (option) +0 dB multiplayer ceramic (TBC) – BTM421 USB Interface Compliance Version 1.1 Support Version 2.0 Supply Voltage 3.1 V to 3.3 V General Purpose Interface I/O 2 general purpose I.O pins for LEDs Audio Support 3 PCM Channels @ 64kbps SCO Channels Support SCO and eSCO PCM Interface Configurable as master or slave 8 bit A-law 8 bit µ-law 13 bit linear PCM Clock available when in slave mode Protocols and Firmware Bluetooth Stack V2.1 compliant Connection Modes Point to point (cable replacement) Multipoint – max 7 slaves Table 2: Detailed Specifications Categories Feature Implementation Current Consumption Data Transfer Typically 32 mA Low Power Sniff Mode Less than 2.5 mA Supply Voltage Supply 3.0 V – 3.3 V DC Coexistence / Compatibility WLAN (802.11) 2-wire and 3-wire hardware coexistence schemes supported Connections Interface Surface Mount Pads
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Americas: +1-800-492-2320 Europe: +44-1628-858-940 Hong Kong: +852-2268-6567 x026 Categories Feature Implementation External Antenna Pad for 50 Ohm antenna – BTM420 Physical Dimensions 12.5 mm x 18.0 mm x 3.4 mm – BTM420 12.5 mm x 24.0 mm x 3.4 mm – BTM421 Weight 3 grams Environmental Operating Temperature -30°C to +70°C Storage Temperature -40°C to +85°C Approvals Bluetooth Qualified as a Controller Subsystem Product FCC Limited Modular Approval – BTM420 Modular approval (Integrated Antenna option – BTM 421) CE & R&TTE Meets CE and R&TTE requirements Miscellaneous Lead free Lead-free and RoHS compliant Warranty 12 Months Development Tools Development Kit Development board
2.2 Pin Definitions
Table 3: Pin Definitions Pin Signal Description Voltage Specification
1 Unused
2 GND
3 Unused
4 Unused
5 Unused
6 Unused
7 GND
8 SPI_CSB SPI bus chip select I/P VIO
9 SPI_MISO SPI bus serial O/P VIO
10 SPI_MOSI SPI bus serial I/P VIO
11 SPI_CLK SPI bus clock I/P VIO
12 VDD_USB USB & UART supply voltage
15 GND
16 PCM_IN PCM clock I/P VIO
17 PCM_SYNC PCM sync I/P VIO
18 PCM_CLK PCM click I/P VIO
19 PCM_OUT PCM Data O/P VIO
20 RESET Module reset I/P See note 2
21 Unused
22 GPIO2 / UART_DCD I/O for host VIO
23 GND
24 Unused
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25 Unused See note 3
26 Unused See note 3
27 Unused See note 3
28 GND See note 3
29 ANT (BTM420) Antenna connection (50 ohm matched) See note 3
30 GND See note 3
31 Unused See note 3
32 Unused See note 3
33 Unused See note 3
34 Unused See note 3
35 Unused See note 3
36 Unused See note 3
37 Unused See note 3
38 Unused
39 Unused
40 Unused
41 GNd
42 GPIO1 / UART_RI I/O for hose VIO
43 Unused
44 Unused
45 GND
46 D- USB D- VUSB
47 D+ USB D+ VUSB
48 Unused
49 Unused
50 Unused
Unused pins may have internal connections and must not be connected. Reset input is active low. Input is pulled up to VDD_IN via 22k. Minimum reset pulse width is 5 ms. Pins 25-37 should be left not connected on modules with integrated antennae (BTM411, BTM421 and BTM431)
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2.3 Operating Parameters
Table 4: Recommended Operating Conditions Recommended Operating Conditions OPERATING CONDITION MIN MAX VDD_USB (USB compatibility not required) 1.7 3.6 VDD_USB (USB compatibility required) 3.1 3.6 VDD_IO 1.7 3.3 VDD_IN 3.0 3.3
2.4 Voltage Specifications
Table 5: Logic Levels (VUSB) Logic Levels (VUSB) INPUT VOLTAGE LEVELS MIN TYP MAX Vih 0.7VDD_USB Vil 2.7 <VDD_USB<3.0 -0.4 +0.8 Output Voltage Levels (1.7 <VDD_USB_1.9) Voh (lout = -4mA) VDD_USB – 0.4 Vol (lout = 4mA) Output Voltage Levels (2.7<VDD_USB<3.0) Voh (lout = -4mA) VDD_USB – 2.0 Vol (lout = 4mA) 0.2 Note: VDD_USB must be connected to power the USB and UART interfaces. Table 6: Logic Levels (VIO) Logic Levels (VIO) INPUT VOLTAGE LEVELS MIN TYP MAX Vih 0.7VDD_IO Vil 2.7 <VDD_IO<3.0 -0.4 +0.8 Output Voltage Levels (1.7 < VDD_IO < 1.9) Voh (lout = -4mA) VDD_IO – 0.4 Vol (lout = 4mA) 0.4 Output Voltage Levels (2.7 < VDd_IO < 3.0) Voh (lout = -4mA) VDD_IO – 0.2 Vol (lout = 4mA) 0.2
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3 FCC REGULATORY STATEMENTS
3.1 BTM420 FCC and Industry Canada Statements
The Final Equipment user manual must show the following statements: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. To comply with the FCC RF exposure compliance requirements, this device and its antenna must not be co - located or operating to conjunction with any other antenna or transmitter. Considerations for OEM integration: This module has a limited modular approval. Approval with any other antenna configuration or layout other than that approved will necessitate additional radiated emission testing to be performed. To inherit the modular approval, the antennas for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. This module was approved with the following antenna: RF Solutions: ANT-24G-WHJ-SMA 0 dBi Operation of this module with any other antenna will require additional testing to be performed. Co-location with other radio transmitting devices operating concurrently in the same band will require additional testing and certification. Designers should note the distinction that the FCC makes regarding portable and mobile devices. Mobile devices are defined as products that are not used closer than 20 cm to the human body, whereas portable devices can be used closer than 20 cm to the body. A device may be used in portable exposure conditions with no restrictions on host platforms when the averaged output power is less than the low power threshold for an uncontrolled environment ≤ 60/f(GHz) i.e. 25 mW for a 2.4 Ghz device. The Maximum Power Exposure for the BTM420 has been evaluated and found to comply with the low power threshold for an uncontrolled environment. Refer to FCC document KDB 447498 for more information on RF exposure procedures and equipment authorization policies for mobile and portable devices. FCC Labelling requirement If the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: “Contains Transmitter Module FCC ID: PI4420B” or “Contains FCC ID: PI4420B.” Any similar wording that expresses the same meaning may be used.
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3.2 BTM421 FCC and Industry Canada Statements
The user manual must show the following statements: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. To comply with the FCC RF exposure compliance requirements, this device and its antenna must not be co- located or operating to conjunction with any other antenna or transmitter. Considerations for OEM integration: To inherit the modular approval, the antennas for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. Co-location with other radio transmitting devices operating concurrently in the same band will require additional testing and certification. Designers should note the distinction that the FCC makes regarding portable and mobile devices. Mobile devices are defined as products that are not used closer than 20 cm to the human body, whereas portable devices can be used closer than 20 cm to the body. A device may be used in portable exposure conditions with no restrictions on host platforms when the averaged output power is less than the low power threshold for an uncontrolled environment ≤ 60/f(GHz) i.e. 25 mW for a 2.4 Ghz device. The Maximum Power Exposure for the BTM421 has been evaluated and found to comply with the low power threshold for an uncontrolled environment. Refer to FCC document KDB 447498 for more information on RF exposure procedures and equipment authorization policies for mobile and portable devices. FCC Labelling requirement If the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: “Contains Transmitter Module FCC ID: PI4421B” or “Contains FCC ID: PI4421B.” Any similar wording that expresses the same meaning may be used.
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4 EU DECLARATION OF CONFORMITY – BTM420 / BTM421
Manufacturer: Laird Product: BTM410 / BTM411 / BTM420 / BTM421 / BTM430 / BTM431 / BTM441 / BTM443 / BTM461 EU Directive: RTTE 1995/5/EC Conformity Assessment: Annex IV
4.1 Reference Standards used for Presumption of Conformity
Article Number Requirement Reference standard(s) 3.1a Health and Safety EN 60950-1:2005 (2 nd Ed); +Am1:2009 +Am2:2013 EN 60950-1:2006+A11+a1:2010+A12:2011+A2:2013 3.1a RF Exposure EN 62479:2010 3.1b Protection requirements with respect to electromagnetic compatibility EN 301 489-1 V1.9.2 (2011-09) EN 301 489-17 V2.2.1 (2012-09) Emissions: EN55022:2010 /AC:2011 (ClassB) Immunity: EN61000-4-2:2009 EN61000-4-3:2006 /A1:2008 /A2:2010
3.2 Means of the efficient use of
the radio frequency spectrum EN 300 328 V1.8.1 (2012-06)
4.2 Declaration:
We, Laird, declare under our sole responsibility that the essential radio test suites have been carried out and that the above product to which this declaration relates is in conformity with all the applicable essential requirements of Article 3 of the EU Directive 1995/5/EC, when used for its intended purpose. Place of Issue: Laird 11160 Thompson Ave. Lenexa, KS 66219 Date of Issue: October 2009 Name of Authorized Person: Daniel Waters / Certifications Specialist Signature:
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5 MECHANICAL DRAWINGS
5.1 BTM420 Mechanical Details
Note: An area of 1.5 mm around the module should be reserved as a keep -out area.
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5.2 BTM420 Mechanical Details
Note: An area of 1.5 mm around the module should be reserved as a keep -out area.
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5.3 BTM420 Mechanical Details
WARNING: Test point dimensions are for reference only. DO NOT make electrical connections to these test points, this will void the warranty. Laird does not recommend routing on the top layer underneath the module.
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5.4 BTM421 Mechanical Details
Note: An area of 1.5 mm around the module should be reserved as a keep -out area.
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5.5 BTM421 Mechanical Details
Note: An area of 1.5 mm around the module should be reserved as a keep -out area.
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5.6 BTM421 Mechanical Details
WARNING: Test point dimensions are for reference only. DO NOT make electrical connections to these test points, this will void the warranty. Laird does not recommend routing on the top layer underneath the module. The Development Kit Schematics for this product can be accessed from the software downloads tab of the BTM42x Product Page
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6 BLUETOOTH SIG APPROVALS
6.1 Application Note: Subsystem Combinations
This application note covers the procedure for generating a new Declaration ID for a Subsystem combination on the Bluetooth SIG website. In the instance of subsystems, a member can combine two or more subsystems to create a complete Bluetooth End Product solution. Subsystem listings referenced as an example: Design Name Owner Declaration ID Link to listing on the SIG website BT800 Laird B016072 https://www.bluetooth.org/tpg/QLI_viewQDL.cfm?qid=16072 Windows 8 (Host Subsystem) Microsoft Corporation B012854 https://www.bluetooth.org/tpg/QLI_viewQDL.cfm?qid=12854
6.1.1 Laird Customer Declaration ID Procedure
This procedure assumes that the member is simply combining two subsystems to create a new design, without any modification to the existing, qualified subsystems. This is achieved by using the Listing interface on the Bluetooth SIG website. Figure 1 shows the basic subsystem combination of a controller and host subsystem. The Controller provides the RF/BB/LM and HCI layers, with the Host providing L2CAP, SDP, GAP, RFCOMM/SPP and any other specific protocols and profiles existing in the Host subsystem listing. The design may also include a Profile Subsystem. Figure 1: Basic subsystem combination of a controller and host subsystem The Qualification Process requires each company to registered as a member of the Blu etooth SIG – http://www.bluetooth.org The following link provides a link to the Bluetooth Registration page: https://www.bluetooth.org/login/register/ For each Bluetooth Design it is necessary to purchase a Declaration ID. This can be done before starting the new qualification, either through invoicing or credit card payment. The fees for the Declaration ID will depend on your membership status, please refer to the following webpage: https://www.bluetooth.org/en-us/test-qualification/qualification-overview/fees For a detailed procedure of how to obtain a new Declaration ID for your design, please refe r to the following SIG document: https://www.bluetooth.org/DocMan/handlers/DownloadDoc.ashx?doc_id=283698&vId=317486 To start the listing, go to: https://www.bluetooth.org/tpg/QLI_SDoc.cfm.
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Americas: +1-800-492-2320 Europe: +44-1628-858-940 Hong Kong: +852-2268-6567 x026 In step 1, select the option, ‘Reference a Qualified Design’, and enter the Declaration IDs of each subsystem used in the End Product design. You can then select your pre-paid Declaration ID from the drop down menu or go to the Purchase Declaration ID page, (please note that unless the Declaration ID is pre-paid or purchased with a credit card, it will not be possible to proceed until the SIG invoice is paid. Once all the relevant sections of step 1 are complete, complete steps 2, 3, and 4 as described in the help document. Your new Design will be listed on the SIG website and you can print your Certificate and DoC. For further information please refer to the following training material: https://www.bluetooth.org/en-us/test-qualification/qualification-overview/listing-process-updates
6.2 Additional Assistance
Please contact your local sales representative or our support team for further assistance: Laird Technologies Connectivity Products Business Unit Support Centre: http://ews-support.lairdtech.com Email: wireless.support@lairdtech.com Phone: Americas: +1-800-492-2320 Option 2 Europe: +44-1628-858-940 Hong Kong: +852 2923 0610 Web: http://www.lairdtech.com/bluetooth
7 ORDERING INFORMATION
BTM420 Bluetooth AT Data Module (external antenna) BTM421 Bluetooth AT Data Module (with integrated antenna) DVK – BTM420 Development board with BTM420 module soldered in place DVK – BTM421 Development board with BTM421 module soldered in place
8 GENERAL COMMENTS
All information in this document is subject to change. Please check with Laird Technologies for the latest information before commencing a design. If in doubt, ask. Refer to the schematic BTDMD-R-001.pdf for the Development Kit on the following two pages for examples of typical pin connections. A PDF of the schematic can be downloaded from the product web page.
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Americas: +1-800-492-2320 Europe: +44-1628-858-940 Hong Kong: +852-2268-6567 x026 Laird Technologies is the world leader in the design and manufacture of customized, performance -critical products for wireless and other advanced electronics applications. Laird Technologies partners with its customers to find solutions for applications in various industries such as: Network Equipment Telecommunications Data Communications Automotive Electronics Computers Aerospace Military Medical Equipment Consumer Electronics Laird Technologies offers its customers unique product solutions, dedication to research and development, as well as a seamless network of manufacturing and customer support facilities across the globe. LWS-UM-BTM420-421_v3.0_0313 Copyright © 2013 Laird Technologies, Inc. All rights reserved. The information contained in this manual and the accompanying software programs are copyrighted and all rights are reserved by Laird Technologies, Inc. Laird Technologies, Inc. reserves the right to make periodic modifications of this product without obligation to notify any person or entity of such revision. Copying, duplicating, selling, or otherwise distributing any part of this product or accompanying documentation/software without the prior consent of an authorized representative of Laird Technologies, Inc. is strictly prohibited. All brands and product names in this publication are registered trademarks or trademarks of their respective holders. This material is preliminary. Information furnished by Laird Technologies in this specification is believed to be accurate. Devices sold by Laird Technologies are covered by the warranty and patent indemnification provisions appearing in its Terms of Sale only. Laird Technologies makes no warranty, express, statutory, and implied or by description, regarding the information set forth herein. Laird Technologies reserves the right to change specifications at any time and without notice. Laird Technologies’ products are intended for use in normal commercial and industrial applications. Applications requiring unusual environmental requirements such as military, medical life-support or life- sustaining equipment are specifically not recommended without additional testing for such application. Limited Warranty, Disclaimer, Limitation of Liability