BM20 Bluetooth® Evaluation Board User’s Guide 2015 Microchip Technology Inc. Preliminary Edition page 1 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE Index Preface........................................................................................................................................ 4 1 OVERVIEW .............................................................................................................................. 6 1.1 INTRODUCTION................................................................................................................................................ 6 1.2 BM20 EVALUATION BOARD FEATURES ........................................................................................................ 6 1.3 BM20 EVALUATION BOARD CONTENTS ........................................................................................................ 7 2. Getting Started ..................................................................................................................... 10 2.1 INTRODUCTION.............................................................................................................................................. 10 2.2 HARDWARE REQUIREMENTS ...................................................................................................................... 10 2.3 APPLICATION DEMONSTRATION ................................................................................................................. 10 2.4 SOFTWARE/UTILITY REQUIREMENTS ........................................................................................................ 13 2.5 MODULE CONFIGURATION........................................................................................................................... 25 APPENDIX A. BM20 AUDIO EVALUATION BOARD SCHEMATICS ....................................... 26 APPENDIX B. CLASS D AMPLIFIER DAUGHTER BOARD.................................................... 31 2015 Microchip Technology Inc. Preliminary Edition page 2 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at [email protected]. We welcome your feedback. Most Current Data Sheet To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: http://www.microchip.com You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page. The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000). Errata An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision of silicon and revision of document to which it applies. To determine if an errata sheet exists for a particular device, please check with one of the following: • Microchip’s Worldwide Web site; http://www.microchip.com • Your local Microchip sales office (see last page) When contacting a sales office, please specify which device, revision of silicon and data sheet (include literature number) you are using. Customer Notification System Register on our web site at www.microchip.com to receive the most current information on all of our products. Abbreviations List: HFP: Hands-free Profile AVRCP: Audio Video Remote Control Profile A2DP: Advanced Audio Distribution Profile HSP: Headset Profile NFC: Near Field Communication 2015 Microchip Technology Inc. Preliminary Edition page 3 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE Preface NOTICE TO CUSTOMERS All documentation becomes dated, and this manual is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some actual dialogs and/or tool descriptions may differ from those in this document. Please refer to our web site (www.microchip.com) to obtain the latest documentation available. INTRODUCTION This chapter contains general information that will be useful to know before using the Product Name. Items discussed in this chapter include: Document Layout Recommended Reading The Microchip Web Site Customer Support Document Revision History DOCUMENT LAYOUT This user’s guide describes how to use the BM20 Bluetooth Evaluation Board. The document is organized as follows: Chapter 1. “Overview” – This chapter introduces the BM20 Bluetooth Evaluation Board and provides an overview of various features. Chapter 2. “Getting Started” – This chapter describes The hardware components and setup of the BM20 Bluetooth Evaluation Board. The application demonstrations of the BM20 Bluetooth Evaluation Board. Software/Utility Requirements of the BM20 Bluetooth Evaluation Board. Appendix A. “BM20 Audio Evaluation Board Schematics” – This appendix includes a schematic of the BM20 Bluetooth Evaluation Board. RECOMMENDED READING This user’s guide describes how to use the BM20 Bluetooth Evaluation Board. Other useful documents are listed below. The following Microchip documents are available and recommended as supplemental reference resources: STEREO Module Data Sheet (DSxxxxxxxx) THE MICROCHIP WEB SITE Microchip provides online support via our web site at http://www.microchip.com. This web site is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the web site contains 2015 Microchip Technology Inc. Preliminary Edition page 4 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE the following information: Product Support – Data sheets and errata, application notes and sample programs, design resources, user’s guides and hardware support documents, latest software releases and archived software General Technical Support – Frequently Asked Questions (FAQs), technical support requests, online discussion groups, Microchip consultant programmember listing Business of Microchip – Product selector and ordering guides, latest Microchip press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels: Distributor or Representative Local Sales Office Field Application Engineer (FAE) Technical Support Customers should contact their distributor, representative or Field Application Engineer (FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document. Technical support is available through the web site at: http://support.microchip.com DOCUMENT REVISION HISTORY Revision A (Aug 2015) This is the initial released version of this document. 2015 Microchip Technology Inc. Preliminary Edition page 5 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE 1 OVERVIEW 1.1 INTRODUCTION ® This user’s guide describes the hardware and software setup for the BM20 Bluetooth Evaluation Board. This board contains the hardware needed to evaluate the BM20 Bluetooth module. The BM20 module is mounted to an evaluation board that demonstrates the module’s key features. The evaluation board contains: Stereo audio output Easy access to IO pins 6 push buttons to control audio playback Status LEDs The BM20 supports the following Bluetooth profiles: A2DP, AVRCP, and HFP/HSP A2DP stereo audio (Sink mode wi support for Sub-Band Coding (SBC), AVRCP media player remote control HFP/HSP for accepting a phone call support. For data sheet and other details related to BM20 module, refer to the Microchip web site at http://www.microchip.com. This chapter discusses the following topics: BM20 Evaluation Board Features BM20 Evaluation Board Contents and Part Details 1.2 BM20 EVALUATION BOARD FEATURES The BM20 Evaluation Board has the following features: Fully qualified Bluetooth version 4.1 module, fully compatible with Bluetooth version 3.0, 2.0, 1.2 system. Embedded BM20 module with postage-stamp size form factor of 15 x 29 x 2.5 mm (include shielding case) Embedded Bluetooth stack profiles: A2DP, AVRCP, and HFP/HSP Stereo audio output for highest quality audio Castellated SMT pads for easy and reliable PCB mounting Environmentally friendly, RoHS compliant Bluetooth SIG certified On board external CDA for speaker demonstration. 2015 Microchip Technology Inc. Preliminary Edition page 6 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE 1.3 BM20 EVALUATION BOARD CONTENTS BM20 Evaluation Board contains the following components as shown in Figure 1-1 which describes the evaluation board’s interfaces and connectors. Table 1-1 describes the various components of the evaluation board. FIGURE 1-1: BM20 EVALUATION BOARD Audio Output (JP23) 1 2 MIC (JP22) 3 1 2 NFC tag connector (JP3) 1 3 2 Pin Description Pin Description Pin Description 1 AOHPL 1 MIC_P1 1 NFC_P 2 AOHPM 2 AGND 2 NFC_N 3 AOHPR 3 MIC_N1 2015 Microchip Technology Inc. Preliminary Edition page 7 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE IO Connector (J1) On Board External CDA Interface (J2) 7 5 3 1 12 10 8 6 4 2 11 9 Pin Description Pin Description Pin Description 1 P0_0 7 P2_4 1 External AMP enable 2 P3_0 8 P0_2 2 control(P1_5) 3 P2_0 9 P0_3 3 R channel signal to external 4 P1_5 10 P0_5 4 AMP. 5 P0_4 11 P2_7 5 L channel signal to external 6 P0_1 12 P2_4 6 AMP. 7 5V power for external AMP 8 from USB. External AMP Connector (JP26) Battery connector (JP20) and Jack (JP19) (Alternative for BAT_IN) 1 2 3 4 5 2 1 + Pin Description Pin Description 1 EXT_AMP_EN 1 BAT_IN 2 SPKR 2 GND 3 AGND 4 SPKL 5 AMP_POWER 2015 Microchip Technology Inc. Preliminary Edition page 8 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE TABLE 1-1:BM20 EVALUATION BOARD HARDWARE Hardware Component Description ® BM20 Bluetooth 4.1 Module USB Connector DC 5V input, USB to UART for EEPROM R/W BAT connector & Jack JP20 and JP19 , alternative for BAT_IN Audio 3.5 mm jack for audio playback(P6). Audio Out External AMP daughter board connector (JP26). On Board external CDA output connector (J3/4). Audio In Audio 3.5 mm jack for Mono microphone input(P5) and AUX input(P7) Status LEDs Red and Blue LEDs show the pairing/connection status MFB Button Switch to turn on/off BM20 module (SW7; Button 0 in UI) Play/Pause Button Button to play or pause the audio playback (SW8; Button1 in UI) Previous Track Button Button to skip track backwards (SW4; Button 5 in UI) Next Track Button Button to skip track forwards(SW5; Button 4 in UI) Volume Up Button Button to increase volume (SW9; Button 2 in UI) Volume Down Button Button to decrease volume (SW10; Button 3 in UI) Reset Button Reset system (SW11) NFC Tag Connector NFC Tag connector.(For NFC tag without Rectifier Circuit)(JP3) MP Tool Interface Interfaces connect to VICTORIA board when use MP Tool 2015 Microchip Technology Inc. Preliminary Edition page 9 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE 2. Getting Started 2.1 INTRODUCTION This chapter describes how the BM20 Evaluation Board works. Certain hardware and utilities are essential to support the evaluation/development of demo applications. This chapter discusses the following topics: Hardware Requirements Software/Utility Requirements Module Configuration 2.2 HARDWARE REQUIREMENTS 2.2.1 HARDWARE SETUP To setup the evaluation hardware, perform the following steps: 1. Make sure pin 1 / 2 / 3 of “SW12” in “Off / Off / On” state make .system in application mode. 2. Connect the portable mini-speaker 3.5 mm to the stereo audio out connector (P6). 2.2.2 USING THE EVALUATION BOARD 1. Connect Li-Ion batteries to JP20 or JP19. 2. Click MFB button to turn-on and enter pairing mode. The status LEDs will blink. Now the BM20 Evaluation board should be discoverable. 3. Turn on Bluetooth device manager on a host device (PC or smartphone), the host device will display a list of discoverable Bluetooth devices. The board display as “EDDY SHS”. 4. If the pairing with the device is successful, BM20 evaluation board can connect to the host device. Once connected, BM20 evaluation board enables Advanced Audio Distribution Profile (A2DP) for audio playback and Audio Video Remote Control Profile (AVRCP) for player control. 2.3 APPLICATION DEMONSTRATION 2.3.1 AUDIO DEMONSTRATION In this demonstration, user can play an audio stream on both BM20 evaluation boards using a computer or smartphone. The following are the steps to perform the demonstration. 1. Connect BM20 evaluation board to a host device (PC or smartphone) that has an audio source. 2. Connect headphones (or mini-speakers) to BM20 evaluation board P6. 3. Open the audio source on the host device. Microchip recommends using media player.(e.g. Microsoft Media Player, iTunes, and Android). 4. Start the audio stream on the media player. When BM20 evaluation board is connected to an audio source compatible with Bluetooth AVRCP, the audio control buttons are use to: Control the volume of audio output. Go to the previous track. 2015 Microchip Technology Inc. Preliminary Edition page 10 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE Go to the next track. Start / stop playing the current track. FIGURE 1-2: BM20 EVALUATION BOARD AUDIO CONTROL BUTTONS FIGURE 1-3: BM20 EVALUATION BOARD WITH EXTERNAL CLASS-D AMPLIFIER (It need modify the setting in UI to support external amplifier) 2015 Microchip Technology Inc. Preliminary Edition page 11 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE 2.3.2 HSP/HFP DEMONSTRATION In this demonstration, user can explore the hands-free profile setting to receive an incoming voice call from a paired smartphone. This demonstration requires a microphone. It would be good to use a PC headset/microphone (with two-plugs). The following are the steps to perform the demonstration. 1. Connect the headset/microphone to BM20 evaluation board’s audio out connector (P6) and MIC input (P5) respectively. 2. Connect BM20 evaluation board to a smartphone that supports the A2DP and HFP/HSP Bluetooth profiles. 3. From another one phone, initiate a call to the smartphone that is paired with BM20 evaluation board. The A2DP stream pauses and the ringtone plays on the headset. 4. Click button “MFB” on BM20 evaluation board to accept the incoming call. 2015 Microchip Technology Inc. Preliminary Edition page 12 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE 2.4 SOFTWARE/UTILITY REQUIREMENTS 2.4.1 UI SETTING Step1. Open UI tool Step2. Firstly, you can load default UI setting or previous setting file. 2015 Microchip Technology Inc. Preliminary Edition page 13 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE Step3. Click “Edit” to modify the settings meet your needs. Step4. In the main settings, it can enable or disable supported profile or function which system need. Click “Next” for other setting. 2015 Microchip Technology Inc. Preliminary Edition page 14 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE Step5. You can do system and functional setting in these pages. Click “Help” you can get more detail information. Step6. After finish parameter set up, click “Finish” button and a message will remind you check EEPROM size on your system. 2015 Microchip Technology Inc. Preliminary Edition page 15 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE Step7. Click “Save” button to save these UI parameter as a “.txt” file Step8. We will use MPET tool to merge it with EEPROM table and use EEPROM tool load these parameter to system. 2015 Microchip Technology Inc. Preliminary Edition page 16 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE 2.4.2 DSP TOOL SETTING Step1. Open DSP tool Step2. Select IC version ““IS2020_XXX_SHS” (XXX is the version of chip, e.g. IS2020S-203) Step3. You can setup all voice and audio function in these pages. 2015 Microchip Technology Inc. Preliminary Edition page 17 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE Step4. Click “Save” button to save these DSP parameter as a “.txt” file after finish all DSP setting. Then use MPET tool to merge it with EEPROM table and use EEPROM tool load these parameter to system. 2015 Microchip Technology Inc. Preliminary Edition page 18 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE 2.4.3 MERGE TOOL SETTING Step1. Open MPET tool, click “Next” to set up. Step2. Select “UI Patch Only” to use full EEPROM table to merge UI and DSP parameter. 2015 Microchip Technology Inc. Preliminary Edition page 19 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE Step3. Select the bin file (full EEPROM table) and click “Next” Step4. If the bin file had included UI, DSP or patch code parameter, you can see them in block 1 as the figure below. If you want keep the in your new system, you can select the item which you want to keep and use “pull down” button to add them to merge list. If you want to add new parameter (e.g. UI and DSP parameter), click “+” button to add these files into tool for merge with EEPROM table. 2015 Microchip Technology Inc. Preliminary Edition page 20 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE Step5. Select an output path and create a name for the merged EEPROM table. Step6. Click “Generate” button to generate the new EEPROM table. 2015 Microchip Technology Inc. Preliminary Edition page 21 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE Step7. Select if you want use new setting of these parts. Step8. Now you have a merged patch file (*.ipf file). 2015 Microchip Technology Inc. Preliminary Edition page 22 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE 2.4.4 Procedure to Update EEPROM Parameters Step 1. Make sure SW12 in “ROM TEST” mode. Step 2. Connect EVB “P1” port and PC by USB cable. LED1 & LED2 on EVB will keep lighting. Step 3. Run the E2PROM_tool.exe program and a window will be come up as below 2015 Microchip Technology Inc. Preliminary Edition page 23 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE Step 4. Specify the COM Port. Step5. Press ”Browse” to choose the file where you want to write EEPROM table or patch file. Step6. Press” Write” to write these setting to EEPROM Step7. After finish data update, remove USB cable and make SW12 to “ROM APP” mode and reboot. Now EVB can use the new setting after updated EEPROM parameter. 2015 Microchip Technology Inc. Preliminary Edition page 24 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE 2.5 MODULE CONFIGURATION 2.5.1 Mode Settings Setting in Mode Switch: For ROM chip application Mode SW12 Setting Switch 12 PIN Definition Test Mode 1: ON (P2_0: LOW) 2: OFF (P2_4: HIGH) 3: ON (EAN: HIGH) Application Mode 1: OFF (P2_0: HIGH) 2: OFF (P2_4: HIGH) 3: ON (EAN: HIGH) 2015 Microchip Technology Inc. Preliminary Edition page 25 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE APPENDIX A. BM20 AUDIO EVALUATION BOARD SCHEMATICS EVB block diagram 2015 Microchip Technology Inc. Preliminary Edition page 26 C54 4.7u/10V MIC_BIAS C59 10u/16V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 P0_0 EAN P3_0 P2_0 P1_5 P0_4 SPKR AOHPM SPKL VDDA MIC1_P MIC1_N MIC_BIAS AIR GND P2_4 P2_7 P0_5 HCI_RXD HCI_TXD P0_3 P0_2 P2_4 LED2 LED1 MFB BK_OUT SY S_PWR P00 P27 P05 P04 P01 P02 P03 P20 P24 P30 Volume up Volume down NFC FWD Play/Pause REV System Configuration System Configuration Line-in detect 37 36 35 34 33 32 31 30 29 28 27 26 25 24 Slide Switch GPIO Description AIL RST_N VCC_RF P0_1 VDD_IO ADAP_IN BAT_IN AMB_DET MIC_P1 MIC_N1 MIC_BIAS AIR P0_0 EAN P3_0 P2_0 P1_5 P0_4 CODEC_VO AOHPR AOHPM AOHPL AIL RST VCC_RF P0_1 VDD_IO ADAP_IN BAT_IN NC GND 15 16 17 18 19 20 21 22 23 P2_4 P2_7 P0_5 HCI_RXD HCI_TXD P0_3 P0_2 P2_4 LED2 LED2 LED1 LED1 MFB BK_OUT SY S_PWR 1 2 JP3 JP 1x2 Preliminary Edition LED2 RED 3rd LED LED1 P0_0 P2_0 P0_4 P2_4 P0_3 P2_7 R71 1M BLUE (NFC_N) NFC_P R93 1K 2 1 1 2 3 G D 1 S P2_4 J1 JP 2x6 2 4 6 8 10 12 2 2 2 LED3 LED-G 1 R39 1 1K P3_0 P1_5 P0_1 P0_2 P0_5 P2_4 LED2 LED-HR 1 LED1 LED-B 1 LED 1 3 5 7 9 11 2 VDD_IO C6 0.1u/10V SY S_PWR 1 R70 270/1% 2 2 S 3 Wednesday , July 22, 2015 MODULE Title Date: BM20 EVB DP25 DP-4 BK_OUT SY S_PWR Size R67 NP-0603 R66 NP-0603 DP24 DP-4 BAT_IN AMB_DET MFB Board Name C64 NP-0603 AMB_DET SY S_PWR Q6 STS2301 1 G D NFC trigger circuit D11 D12 R56 CDSU400B CDSU400B 120/1% 2 1 2 1 2 Q3 STS2306 1 I/O TEST 1 2 2 P0_4 2 1 D6 1 2015 Microchip Technology Inc. 2 PCB1 FP-BM20 G691L293 RST VCC GND U7 1 2 RST_N Sheet 1 of Hsinchu City 30078, Taiwan TEL. 886-3-5778385 4 Rev 4.0 P/N 0355 5F, No.5, Industry E. Rd. VII, Hsinchu Science Park, 3 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE page 27 AT ACK 4 7 8 6 VBUS DD+ ID GND 1 2 3 4 5 L2 FB-0603 L1 FB-0603 C132 0.1u/10V DD+ C7 47u/16V ADAP_IN JP20 JP 1x2 SJP 1x2 3 BAT_IN BAT CONNECTOR C13 0.1u/10V C12 NP-0603 BATTERY CONNECTOR 2 2 USB_GND USB_GND 1 1 9 1 2 P1 UCB02SB3021-99R 1 1 R92 3K 2 VDD OSC1 OSC2 RST GP7/TxLED GP6/RxLED GP5 GP4 GP3 TX C62 0.1u/10V HCI_RXD HCI_TXD 1 20 19 18 17 16 15 14 13 12 11 R91 3K VSS D+ DVUSB GP0/SSPND GP1/USBCFG GP2 CTS RX RTS U10 MCP2200 2 TX AOHPL AOHPR AIL AIR CODEC_VO BK_OUT VCC_RF 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 JP9 39 37 35 33 31 29 27 25 23 21 19 17 15 13 11 9 7 5 3 1 JP 2x20 MIC_N1 MIC_P1 C9 0.1u/10V BAT_IN ADAP_IN C5 0.1u/10V VDD_IO HCI_TXD HCI_RXD MIC_BIAS P2_0 P2_4 EAN MFB VICTORIA/EDGAR II INTERFACE 2 RX 1 2 3 4 5 6 7 8 9 10 1 ADAP_IN C129 12p/50V R90 470 R88 NP-0402 RST_N R89 10K C4 0.1u/10V C128 0.1u/10V 3 2 X2 X4P-12MHZ EXT_3V3 4 1 C130 12p/50V 1 D+ D- C131 0.1u/10V EXT_3V3 VDD_IO 1 R7 10 R95 4K7 1 6 5 4 SW12 SW-3BIT Wednesday , July 22, 2015 Date: Sheet 2 of Hsinchu City 30078, Taiwan TEL. 886-3-5778385 4 Rev 4.0 P/N 0355 5F, No.5, Industry E. Rd. VII, Hsinchu Science Park, EAN P2_4 P2_0 POWER / UART HCI BM20 EVB Title JP16 JP 1x2 3 2 1 Size 2 1 TEST GND R8 4K7 2 Board Name 2 10 11 JP19 2 Preliminary Edition 1 2 2015 Microchip Technology Inc. 2 1 2 ON DC POWER SOURCE BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE page 28 Preliminary Edition P5 PJ-2001-5K MIC1 3 5 4 2 1 AOHPR C26 NP-0402 R12 1 JP22 JP 1x3 2K R9 1K 2 2 C27 NP-0402 SPKR JP23 JP 1x3 1 2 3 R10 1 AOHPR AOHPM 1K AOHPL AOHPR AOHPM AOHPL C25 0.1u/10V C21 0.1u/10V MIC_BIAS C19 2.2u/6.3V C31 NP-0402 C23 220p/50V 2 C30 NP-0402 C18 2.2u/6.3V AOHPM C78 1u/16V 1 2 3 C77 1u/16V AOHPR AOHPM C28 NP-0402 MIC_N1 MIC_P1 C29 NP-0402 P7 TSH-3865D 10 2 4 1 3 R96 4K7 P1_5_AMP P3_0 LINE_L LINE_R 1 1 2 R31 0 R33 0 2 2 C17 10p/50V R2 10K/1% D7 CDBU0240 LINE INPUT C16 39p/50V SPKL_AMP 1 FB3 L4 GSMA201209 NP-1206 220p/50V C8 L_IN C24 0.1u/10V FB2 L3 GSMA201209 NP-1206 220p/50V C138 1 C139 100u/16V FB1 2 C48 1u/16V C37 1u/16V C45 NP-0402 R4 82K/1% 2 C134 10u/6.3V 1 2 3 4 5 6 7 8 + 1 PVDDL -OUTL PGNDL +OUTL SHDN VREF INL GND U2 PAM8004 C3 100u/16V AIL AIR AIL AIR ADAP_IN_AMP GSMA201209 R35 C46 NP-0402 NP-0402 R34 NP-0402 C136 0.47u/50V 1 2 1 C133 10u/6.3V + ADAP_IN_AMP 1 2 1 2 L_OUT 1 AOHPL L_VOP 2 1 L_VON 2 1 3 5 4 2 1 SPKL 1 P6 PJ-2001-5K 1 2 1 2 10 R3 2 PVDDR -OUTR PGNDR +OUTR NC NC INR VDD C137 0.47u/50V C140 10p/50V C141 39p/50V R_IN L6 NP-1206 SPKR_AMP FB5 GSMA201209 C11 220p/50V 1 3 5 7 J2 JP 2x4 2 4 6 8 P1_5 SPKR SPKL Wednesday , July 22, 2015 Date: Sheet 3 of Hsinchu City 30078, Taiwan TEL. 886-3-5778385 AUDIO TEST INTERFACE Title Size (EXT AMP enable) P1_5 ADAP_IN ADAP_IN 4 Rev 4.0 P/N 0355 5F, No.5, Industry E. Rd. VII, Hsinchu Science Park, SPKR SPKL BM20 EVB JP26 5 4 3 2 1 JP 1x5 EXT AMP CONNECTOR P1_5_AMP SPKR_AMP SPKL_AMP ON BOARD EXT AMP SWITCH R5 82K/1% 2 ADAP_IN_AMP 1 Board Name C15 1u/10V 16 15 14 13 12 11 10 9 2 1 J4 HDR 1x2 L5 FB4 NP-1206 GSMA201209 C135 10u/6.3V C10 220p/50V R_OUT 1 2 R_VON 2 1 R_VOP 2 1 SPK JACK 1 2 2015 Microchip Technology Inc. 2 1 2 J3 HDR 1x2 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE page 29 SW4 TS08M-PF 2 SW8 TS08M-PF 1 SW10 TS08M-PF Btn3(VOL-) 1 2 Btn1(PLAY/PAU) 1 Btn5(REW) 2 C42 15p/50V C40 15p/50V C38 15p/50V P0_5 P0_2 P0_3 1 1 SW9 TS08M-PF 2 Btn2(VOL+) SW5 TS08M-PF 2 Btn4(FWD) C41 15p/50V C39 15p/50V MUSIC CONTROL PUSH BUTTON SW7 TS08M-PF MFB P2_7 P0_1 RST_N 1 Wednesday , July 22, 2015 100K R37 G S Q10 STS2306 Sheet 4 of Hsinchu City 30078, Taiwan TEL. 886-3-5778385 PUSH BUTTON/SWITCH Date: 2 D P0_0 4 Rev 4.0 P/N 0355 5F, No.5, Industry E. Rd. VII, Hsinchu Science Park, 100K R21 SLIDE_SW R36 10K SY S_PWR VDD_IO SW6 SW-1BIT BM20 EVB C57 10u/16V 1 2 Title 3 Q9 STS2301 Size Board Name MFB SW11 TS08M-PF 2 SLIDE SWITCH 1 2 1 1 1 2 3 2 2 1 1 SY S_PWR RESET PUSH BUTTON D Preliminary Edition 2 G 2015 Microchip Technology Inc. S Btn0(MFB) BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE page 30 BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE APPENDIX B. CLASS D AMPLIFIER DAUGHTER BOARD BM20 EVB reserves an interface (JP26) to connect with an external class D amplifier daughter board for speaker application demonstration. Here is a daughter board example of NAU8223 3.1W class D amplifier. Speaker Connector for L/R channel Amplifier Gain Setting BM20 EVB Connector On the daughter board, we reserve pin header for amplifier gain setting, L/R channel speaker connector and BM20 EVB connector. It can be connected with BM20 EVB to emulate a speaker application. The schematics of the daughter board as below: 2015 Microchip Technology Inc. Preliminary Edition page 31 1 C7 L_VOP 2 + FB1 AL AP 2 JP4 JP 1x2 EN AR 1 2 JP2 JP 1x2 1 2 AL + C3 100u/16V VDD C16 39p/50V AL EN C17 R2 4K7 1 C12 1 2 JP8 JP 1x2 R5 10K L_P N 0.47u/50V D1 LL4148 2 1 OUTRP VDD NC EN INR GS C23 0.47u/50V NAU8223 1 2 3 4 5 U3 C25 0.1u/16V GS vs. Gain Setting GAIN(dB) GS 24 GND 18 100K to GND 12 VDD 6 100K to VDD 0 FLOATING 10p/50V FB3 L2 GSMA201209 NP-1206 VDD GSMA201209 1 0.1u/16V C26 C8 1000p/16V L_IN 10u/10V C14 AP C37 100u/16V L_VOP L_VON 2 4 6 1 3 5 1 1000p/16V CN1 CONN1X5 1 2 3 4 5 2 1 2 L_VON 2 1 JP1 JP 2x3 1 2 R3 100K VDD VDD 15 14 13 12 11 JP6 JP 2x4 C28 0.1u/16V R4 100K C21 10u/10V VDD OUTLP VDD NC NC INL VDD C20 10u/10V 1 2 R_P N C13 Date: Size A AR AR 1 2 1 2 JP5 JP 1x2 JP3 JP 1x2 R_IN FB5 GSMA201209 1000p/16V C11 JP7 JP 2x3 N P GND 1 L4 NP-1206 MAIN CIRCUIT TEL. Sheet 1 of 1 Rev 1.0 4F, No.8, Dusing Rd., Hsinchu Science Park, Hsinchu City 30078, Taiwan 886-3-5778385 P/N 0130 NAU8223 ISSC Technologies Corp. ADD. AR AL C18 10p/50V C19 39p/50V 10u/10V 0.1u/16V C22 1000p/16V L3 FB4 NP-1206 GSMA201209 Monday , October 15, 2012 Title Board Name P6 PJ-2001-5K 3 5 4 2 1 C27 0.47u/50V C24 0.47u/50V VDD JP 1x2 JP9 C10 R_OUT R_VON 2 1 L_OUT 1 FB2 L1 GSMA201209 NP-1206 1 2 1 2 page 32 2 2 21 20 19 18 17 16 VSS VSS OUTRN VDD OUTLN VSS IPR GS VDD VSS IPL 6 7 8 9 10 2 4 6 8 1 3 5 7 1 Preliminary Edition 2 1 2 R_VON R_VOP 2 4 6 1 3 5 R_VOP 2 1 2015 Microchip Technology Inc. 2 P N GND BM20 BLUETOOTH EVALUTATION BOARD USER’S GUIDE Worldwide Sales and Service AMERICAS ASIA/PACIFIC ASIA/PACIFIC EUROPE Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://www.microchip.com/ support Web Address: www.microchip.com Asia Pacific Office Suites 3707-14, 37th Floor Tower 6, The Gateway Harbour City, Kowloon Hong Kong Tel: 852-2943-5100 Fax: 852-2401-3431 Australia - Sydney Tel: 61-2-9868-6733 Fax: 61-2-9868-6755 India - Bangalore Tel: 91-80-3090-4444 Fax: 91-80-3090-4123 Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 Atlanta Duluth, GA Tel: 678-957-9614 Fax: 678-957-1455 China - Beijing Tel: 86-10-8569-7000 Fax: 86-10-8528-2104 Austin, TX Tel: 512-257-3370 China - Chengdu Tel: 86-28-8665-5511 Fax: 86-28-8665-7889 Boston Westborough, MA Tel: 774-760-0087 Fax: 774-760-0088 Chicago Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075 Cleveland Independence, OH Tel: 216-447-0464 Fax: 216-447-0643 Dallas Addison, TX Tel: 972-818-7423 Fax: 972-818-2924 Detroit Novi, MI Tel: 248-848-4000 Houston, TX Tel: 281-894-5983 Indianapolis Noblesville, IN Tel: 317-773-8323 Fax: 317-773-5453 Los Angeles Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 New York, NY Tel: 631-435-6000 San Jose, CA Tel: 408-735-9110 Canada - Toronto Tel: 905-673-0699 Fax: 905-673-6509 China - Chongqing Tel: 86-23-8980-9588 Fax: 86-23-8980-9500 China - Hangzhou Tel: 86-571-8792-8115 Fax: 86-571-8792-8116 China - Hong Kong SAR Tel: 852-2943-5100 Fax: 852-2401-3431 China - Nanjing Tel: 86-25-8473-2460 Fax: 86-25-8473-2470 China - Qingdao Tel: 86-532-8502-7355 Fax: 86-532-8502-7205 China - Shanghai Tel: 86-21-5407-5533 Fax: 86-21-5407-5066 China - Shenyang Tel: 86-24-2334-2829 Fax: 86-24-2334-2393 China - Shenzhen Tel: 86-755-8864-2200 Fax: 86-755-8203-1760 China - Wuhan Tel: 86-27-5980-5300 Fax: 86-27-5980-5118 China - Xian Tel: 86-29-8833-7252 Fax: 86-29-8833-7256 India - New Delhi Tel: 91-11-4160-8631 Fax: 91-11-4160-8632 India - Pune Tel: 91-20-3019-1500 Japan - Osaka Tel: 81-6-6152-7160 Fax: 81-6-6152-9310 Japan - Tokyo Tel: 81-3-6880- 3770 Fax: 81-3-6880-3771 Korea - Daegu Tel: 82-53-744-4301 Fax: 82-53-744-4302 Korea - Seoul Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934 France - Paris Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79 Germany - Dusseldorf Tel: 49-2129-3766400 Germany - Munich Tel: 49-89-627-144-0 Fax: 49-89-627-144-44 Germany - Pforzheim Tel: 49-7231-424750 Italy - Milan Tel: 39-0331-742611 Fax: 39-0331-466781 Italy - Venice Tel: 39-049-7625286 Malaysia - Kuala Lumpur Tel: 60-3-6201-9857 Fax: 60-3-6201-9859 Netherlands - Drunen Tel: 31-416-690399 Fax: 31-416-690340 Malaysia - Penang Tel: 60-4-227-8870 Fax: 60-4-227-4068 Poland - Warsaw Tel: 48-22-3325737 Philippines - Manila Tel: 63-2-634-9065 Fax: 63-2-634-9069 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan - Hsin Chu Tel: 886-3-5778-366 Fax: 886-3-5770-955 Spain - Madrid Tel: 34-91-708-08-90 Fax: 34-91-708-08-91 Sweden - Stockholm Tel: 46-8-5090-4654 UK - Wokingham Tel: 44-118-921-5800 Fax: 44-118-921-5820 Taiwan - Kaohsiung Tel: 886-7-213-7830 Taiwan - Taipei Tel: 886-2-2508-8600 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 China - Xiamen Tel: 86-592-2388138 Fax: 86-592-2388130 China - Zhuhai Tel: 86-756-3210040 Fax: 86-756-3210049 2015 Microchip Technology Inc. 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