Single chip wireless technology: Developing Bluetooth headsets CSR - Cambridge Silicon Radio Cambridge Science Park Milton Road CB4 0WH, UK t: +44 1223 692 000 f: +44 1223 692 001 e: sales@csr.com w: www.csr.com
Succeed - by example CSR s 'Example Designs' and support helps users develop Bluetooth products rapidly: It cuts the complexity, risk, time and cost of bringing wireless-enabled product to market: minimal need to understand Bluetooth protocol, or RF/embedded system engineering OEMs get a circuit diagram, bill of materials, Gerber files for the layout-critical (RF) section of the PCB, and a comprehensive application note... plus pre-written application code, provided in the form of a development kit with software 'templates'. Templates allow simple modifications to be made by nonexpert users Manufacturing support provided by BlueCore's built-in self test, plus generic test programs allow sophisticated production procedures to be established in parallel with development
CSR is committed to the headset market Cellular handsets: >50% of the Bluetooth semiconductor revenues next 5 years Headsets: primarily as a cellphone accessory, will grow to second-largest area Desktop PCs Notebook PCs Accessories Source: IDC press release, July 2002 Headset Market 2001 2002 2003 2004 2005 Moderate WW Forecast Million Solutions 0.4 2.8 8.3 47.6 94.2 Aggressive WW Forecast Million Solutions 0.4 3.1 9.3 54.2 110.2 Share of Bluetooth Market % 3.6% 9.2% 6.7% 14.0% 16.0% CSR s BlueCore IC is already shipping in many popular headsets
What s driving the headset market? Holding a cellular handset while driving is now illegal in many countries Bluetooth headsets provide a convenient, legal alternative Phone-related auto accidents account for ~1 in every 20 road deaths (Harvard Centre for Risk Analysis) An increasing number of handsets are shipping with Bluetooth All major handset manufacturers are 100% committed to Bluetooth Mobile data services (MMS, GPRS, FM radios) need large color displays & stereo audio Small headsets make more convenient audio devices than latest, large-display phones
Providing all the pieces of the headset jigsaw Many claim to offer a solution, but can they provide everything? A single chip solution with integral codec and microcontroller Excellent RF performance for good range A complete reference design (schematic, BOM and Gerber files) A complete phone dongle reference design so you can sell your headset to customers with non-bluetooth phones Proven on-chip software (Headset, Hands-free, DUN, Audio Gateway) A low cost production test solution Assistance with procurement worldwide low prices on key components Assistance with Bluetooth qualification Other vendors may promise all this but only CSR can provide it all today Is time to market important to you?
Flash or ROM platform which is best for your headset project? Memory type Bluetooth Profile BOM cost Software effort required BlueCore2-Headset IC ROM Headset Profile (Hands-free profile in Q4 2003) Low cost No software development required BlueCore2-Flash IC Flash Headset and Hands-free profiles BOM approximately $2 more than BlueCore2-Headset Requires ~4 man months of customer development time Custom solution possible? Customisable user interface only Ideal for low-cost, massmarket headsets. Shortest time to market Completely customizable software change any aspect of behaviour Ideal for high-end headsets
Headset architecture using the BlueCore2-Headset IC BlueCore2-Headset: includes codec and ROM with user-configurable HMI software External RF components* Antenna Module specific PSkeys: Unique Bluetooth address Crystal trim Power settings Set during production. Different for each individual headset BlueCore2-Headset Speaker EEPROM Microphone MMI configuration PSkeys: Ring tone Number of buttons LED flashing pattern Power management Set once during development. Identical for every headset of the same type *Also available in 6x6mm and 10x10mm Plug-n-Go packages (external RF components not required )
BlueCore2-Headset software: features include user configurability The Bluetooth Headset Profile Configurable user interface use 2 or 3 buttons Configurable power management: visible / audible warning when battery is low Either 1 or 2 LEDs (can be any color) Configurable LED flashing pattern Selectable ring tones Tested for interoperability with many popular Bluetooth phones Production test solution available Available now!
BlueCore2-Headset Deluxe software: features BlueCore2-Headset Deluxe: a forthcoming version of BlueCore2-Headset with new features: The Bluetooth headset and Hands-free profiles More user interface configurability Last number redial 3 way calling Call transfer Call hold Available Q4, 2003
CSR s BlueCore2-Headset Development Kit The BlueCore2-Headset Development Kit Available now! BlueSuite easy to use Windows tool for configuring software Set up user interface using a Windows dialog box Produce different models based on the same PCB! No software development expertise required
Resources for developers using BlueCore2-Headset Customers who purchase BlueLab (CSR s SDK) or the Headset Development Kit get access to the BlueCore2-Headset website containing: A detailed reference design Production test plan and software libraries Bluetooth qualification assistance: pro-forma versions of all necessary forms just fill out and submit to a CSR-recommended BQB The latest software tools
Headset architecture using the BlueCore2-Flash IC Similar to BlueCore2-Headset but application stored in Flash for extra flexibility External RF components* BlueCore2-Flash Radio and Baseband Antenna Flash memory Speaker Microphone Module specific PSkeys: Unique Bluetooth address Crystal trim Power settings Set during production. Different for each individual headset Headset application Written in CSR s BlueLab development kit Headset and hands-free profiles available Defined during development. Identical for every headset of the same type *External RF components not required for Plug-n-Go package variant of chip
BlueLab: CSR s SDK for BlueCore2-Flash BlueLab: a full-featured SDK for BlueCore2-Flash IC (and BlueCore2-Ext with external memory interface) Contains source code for the Headset/Hands-free profiles, and sample customizable MMI* *Without this it would require ~4 man-months of software development to produce a production-ready application) The BlueCore2-Headset development kit is included with BlueLab
The BlueCore2-Flash IC an ideal platform for high-end headsets LCD display I 2 C BlueCore2-Flash Speaker Microphone BlueCore2-Flash-based designs make it possible to integrate advanced features (e.g.): LCD display for caller ID Listening to audio when watching the screen Ideal for new smart phones which can be inconvenient for audio calls
Next-generation Bluetooth headset designs CSR is already developing complete solutions for future headset concepts: Concept 1: High quality audio headset, with: Echo cancellation, noise reduction Concept 2: Wireless stereo headphones, with: MP3 decoding, hi-fi quality
Concept 1: High quality audio headset The BlueCore3-Multimedia IC DSP Speaker BlueCore2-Ext Echo cancellation Audio codec Microphone Headset / Hands-free Profiles Echo cancellation, and noise reduction (to remove wind noise) Current solution BlueCore2-Ext IC (external memory interface) plus a DSP chip Future single-chip solution: June 2003 - BlueCore3-Multimedia (also implements Bluetooth v1.2)
Concept 2: Wireless stereo headphones The BlueCore3-Multimedia IC DSP Speaker BlueCore2-Ext AV Profile Stereo audio codec Microphone Headset / Hands-free Profiles Current solution use BlueCore2-Ext IC plus a separate DSP chip Future single-chip solution: June 2003 - BlueCore3-Multimedia (also implements Bluetooth v1.2)
Roadmap for headset-related applications (BlueCore ICs/software) Echo/noise cancelling headsets & stereo headphones BlueCore2-Ext + external DSP According to market demand BlueCore3-Multimedia (integral DSP) (Bluetooth v1.2) Mobile phone adaptors BlueCore2-Gateway According to market demand BlueCore2-Gateway Deluxe High end headsets BlueCore2-Flash According to market demand BlueCore3-Flash (Bluetooth v1.2) BlueCore2-Headset According to market demand Low cost headsets BlueCore2-Headset Deluxe BC3-Headset (Bluetooth v1.2) 2003 Q2 Q3 Q4 2004 Q2 Q3 Q4 2005
Overview of CSR s design support for key Bluetooth applications BlueCore is a true single-chip solution for enabling products with Bluetooth CSR offers BlueCore variants, plus applications support including example designs, to provide ready-to-apply solutions; PowerPoint presentations on this CD detail the following: Headsets Low- and highend Mobile Phones GSM, CDMA Host stacks Gateway Dongle Retrofit solution for headsets and data Virtual USB Dongle Retrofit dongle HID (Human Interface Device) Mouse, Keyboard 'Dual-boot' USB dongle PCs PCMCIA, Compact Flash, Motherboard, USB dongle Access Points V.90/92 single / multi point Printers PDAs Automotive/ Industrial Hands-free phone RS232 cable replacement dongle CSR 2003 BlueCore and Casira are trademarks of CSR. Bluetooth is a trademark owned by the Bluetooth SIG., Inc. All other trademarks mentioned are the property of their respective owners.
Contact details Head Office: CSR Cambridge Science Park Milton Road Cambridge CB4 0WH, UK US office CSR 1651 N. Collins Blvd. Suite 210 Richardson, TX 75080 Tel: +1 (972)-238-2300 Fax: +1 (972)-231-1440 Singapore office Blk 5, Ang Mo Kio Industrial Park 2A, AMK Tech II, #07-08 Singapore 567760 Tel: +65 6484 2212 Fax: +65 6484 2219 Tel: +44 (0)1223 692000 Fax: +44 (0)1223 692001 Email: sales@csr.com Korean office CSR Korea Rm. 1111 Keumgang Venturetel, #1108 Beesan-dong, Dong An-ku, Anyang-city, Kyunggi-do 431-050, Korea Tel: +82 31 389 0541 Fax: +82 31 389 0545 Denmark office Novi Science Park Niels Jernes Vej 10 9220 Aalborg East Denmark Tel: +45 72 200 380 Fax: +45 96 354 599 Japan office CSR KK Kojimachi KS Square 9F 5-3-3 Kojimachi Chiyoda-ku, Tokyo 102-0083, Japan Tel: +81 (0)3 5276 2911 Fax: +81 (0)3 5276 2915 For details of your nearest distributor, please visit our website at www.csr.com
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