Shi Xinzhongxin Technology F-6688 Bluetooth Module User Manual www i enet com

Shenzhenshi Xinzhongxin Technology Co., Ltd. Bluetooth Module www i enet com

15_F-6688 UserMan, r1.pdf

Page 1 of 14BK8000LBluetooth Audio SoC UserGuideF-6688Brand:XINZHONGXINFCC ID:2AG94F-6688Shenzhenshi Xinzhongxin Technology Co., Ltd.
BK8000L DatasheetPage 2 of 14Contents1. General Description......................................................................................................................4 1.1. Features................................................................................................................................4 1.2. Applications.........................................................................................................................4 2. Pin Definition................................................................................................................................5 3. Functional Description.................................................................................................................7 3.1. GPIO.....................................................................................................................................7 3.2. PWM Timer and Watch Dog Timer...................................................................................8 3.3. Power Management.............................................................................................................8 3.4. MCU.....................................................................................................................................8 3.5. I2C and UART Interface.....................................................................................................8 3.6. FM Receiver Control Interface...........................................................................................8 3.7. FLASH Access Interface....................................................................................................9 3.8. SPI........................................................................................................................................9 3.9. SAR ADC and LED............................................................................................................9 3.10. Audio Peripheral..................................................................................................................9 4. Electrical Characteristics............................................................................................................10 4.1. Absolute Maximum Ratings.............................................................................................10 4.2. Recommended Operating Conditions..............................................................................10 4.3. System LDO......................................................................................................................10 4.4. Analog LDO/BUCK..........................................................................................................10 4.5. Digital LDO/BUCK..........................................................................................................11 4.6. USB LDO...........................................................................................................................11 4.7. Typical Power Consumption............................................................................................11 4.8. RF Characteristics.............................................................................................................11 4.9. Audio Characteristics........................................................................................................12 5. Application Schematic...............................................................................................................12 6. About the Qualification..............................................................................................................12 7. Package Information...................................................................................................................13 8. Ordering Information.................................................................................................................14
Low Power Bluetooth Audio SoCPage 3 of 141.General DescriptionThe BK8000L chip is a highly integrated single-chip Bluetooth audio device. It integrates the high-performance transceiver, rich features baseband processor, and Bluetooth audio profile. The BK8000L cache based architecture enables it is fully programmable with any application, that it may be used for control and multimedia hybrid application. The internal dual stereo ADC converts the stereo line in input to digital audio that enables the line in use the digital equalizer. Hardware equalizer and accelerator offload the MCU, and make it suitable for low power headset application. 1.1.FeatureslOperation voltage from 2.8 V to 4.2 VlBluetooth 2.1+EDR compliantl-92 dBm sensitivity for 2 Mbps mode and 5 dBm transmit powerlA2DP v1.2, AVRCP v1.0 and HFP v1.5 profilelIntegrated 96 dB SNR stereo ADC and stereo DAClFive bands hardware equalizerlDigital equalizer for stereo line inlHardware accelerator for low powerlFull duplex hands-free speakerphonelUp to 250 mA charge controller1.2.ApplicationslBluetooth stereo speaker lBluetooth stereo headset lBluetooth control and multimedia hybridROSCXTALDPLL PowerManagementSwitchRegulatorAudioDACAudioADCLEDPORMCUwithJTAGResetDMAWatchDogI2CFLASHControllerI2C/UARTADC80KBDataRAM16KBI-CacheSPIPMUBISTBluetoothTransceiverPWMAudio(inc.DTMF)HWA
BK8000L DatasheetPage 4 of 142.Pin DefinitionIt provides maximum QFN6x648-pins package for wireless audio application. MICINNTSTEN12345615161718193433323130GNDPADBK8006QFN6*648-Pin29AUDIORPAUDIOLP720821223536RFP_BTAUDIOLNAUDIORNGPIO0GPIO12324MICINP131444 45 46 47 4843RSTNGPIO4GPIO3GPIO2VDD12GPIO11V2MICBIASVREF1AUDVCC3SYSVCC5USBVCC4BATGPIO5VCCAUDTDI(GPIO20)2827262541 424038 3937Table 1 Pin Description of 48Pin PackagePINNamePin FunctionDescription1RSTNDigital I/OActive low reset 2TSTENDigital I/OTest enable, high enable chip in test mode 3RFP_BTRF port2.4 GHz antenna port 4TDIDigital I/OJTAG TDI, GPIO20 5GPIO11Digital I/OGeneral I/O 6VDD12Power1.2 V LDO output 7GPIO0Digital I/OGPIO 8GPIO1Digital I/OGPIO 9GPIO2Digital I/OGPIOBK8000L
Low Power Bluetooth Audio SoCPage 5 of 1410GPIO3Digital I/OGPIO 11GPIO4Digital I/OGPIO 12GPIO5Digital I/OGPIO 13CSN_FLADigital I/OFLASH CSN 14WP_FLADigital I/OFLASH WP 15SI_FLADigital I/OFLASH SI 16SO_FLADigital I/OFLASH SO 17SCK_FLADigital I/OFLASH SCK 18HOLD_FLADigital I/O FLASH HOLD 19VCC3IOPower3.3 V LDO output 20SWDAnalogSwitch regulator port for digital 21VSYS3V8DPowerInput Power 3.6V 22VBUCKDPowerSwitch regulator output for digital 23LINRAnalogLine in right channel 24LINLAnalogLine in left channel 25MICINNAnalogMicrophone input negative 26MICINPAnalogMicrophone input positive 27V2MICBIASAnalogAudio bias voltage output 28VERF1AUDAnalogAudio reference output,1.2V 29VCCAUDPower supplyAudio power supply input, 1.8V~3.6 30AUDIOLNAnalogAudio left channel output negative 31AUDIOLPAnalogAudio left channel output positive 32AUDIORPAnalogAudio right channel output negative 33AUDIORNAnalogAudio right channel output positive 34VCC5USBPowerUSB power input 35VCC4BATPowerBattery input 36VCC3SYSPower3.6V system LDO output 37SWAAnalogSwitch regulator port for analog 38VCC3BUCKAPowerSwitch regulator input for analog 39VBUCKAPowerSwitch regulator output for analog 40VADCAnalogBattery detector ADC input 41NCNCNC 42VCCBTPowerBT power supply input, 1.8V~3.6 43VCC3XTALPowerXTAL power input, 3.6V 44XOAnalogXTAL output 45XIAnalogXTAL input 46TMSDigital I/OJTAG TMS 47TCKDigital I/OJTAG TCK 48TDODigital I/OJTAG TDO
BK8000L DatasheetPage 6 of 143.Functional Description3.1.GPIOThe BK8000L has total 19 GPIOs, which can be configured as either input or output. Most of them have second function. Table 2 GPIO Function MappingMbist ModePerial Mode GPIO ModeGPIO0Mbist DoneUART2_TXD/I2C2_SCLGeneral I/OGPIO1Mbist_FailUART2_RXD/I2C2_SDAGeneral I/OGPIO2inputpcm2_clk/TXENGeneral I/OGPIO3inputpcm2_sync/RXENGeneral I/OGPIO4inputpcm2_din/UART1_TX_MonitorGeneral I/OGPIO5inputpcm2_dout/UART1_RX_MonitorGeneral I/OGPIO6inputpcm2_codec_clk/spi_csnGeneral I/OGPIO7inputspi_sckGeneral I/OGPIO8inputspi_mosiGeneral I/OGPIO9inputspi_misoGeneral I/OGPIO10inputPWM0General I/OGPIO11Mbist_PassPWM1General I/OGPIO12inputsd_clk/clk13mGeneral I/OGPIO13inputsd_cmd/SCLGeneral I/OGPIO14inputsd_data[0]/SDAGeneral I/OGPIO15inputsd_data[1]General I/OGPIO16inputsd_data[2]General I/OGPIO17inputsd_data[3]General I/OGPIO18Mbist_Fail_BTjtag_TCKGeneral I/OGPIO19dram_result[2]jtag_TMSGeneral I/OGPIO20dram_result[1]jtag_TDI General I/OGPIO21dram_result[0]jtag_TDOGeneral I/OAll GPIO can be source to wake up MCU from shut down state. In shut down state, any level change on the set GPIO will trigger the wake up procedure. When power on, the default state of GPIO0~GPIO9 and GPIO12~GPIO20 is high impedance and pull low internally; the default state of GPIO10~GPIO11 is high impedance and pull high; and the default state of GPIO21 is high impedance only.
Low Power Bluetooth Audio SoCPage 7 of 143.2.PWM Timer and Watch Dog TimerThere are two sets of PWM timers. One fast set uses 1 MHz clock as main clock, and another slow set uses 32 kHz clock as main clock. Each set has three 16 bits counter with 4 bit pre-divider. First two timers in slow set can be used to LED duty cycle control. The watch dog timer runs with 32 kHz clock, with period from 0.6 ms to 38 second. 3.3.Power ManagementThe BK8000L supports USB power supply thatit can work without battery. When there is a USB power supply, it will charge the battery with automatically charge current control while provide power to the BK8000L. The buck will give nearly half current reduction for digital power.The BK8000L can enter into shut down mode when there is no active connection. The shut mode can be waked up by GPIO and USB charge.3.4.MCUThe 16 bit RISC MCU has 16 KB I-Cache and DMA bus, to support efficient execution and frequently data exchange. The JTAG interface can be used to on- line debug, which can be also configured as GPIO.Besides 26 MHz crystal, the MCU can run with internal programmable ROSC clock, or 32 kHz ring oscillator clock, with programmable divided ratio.3.5.I2C and UART InterfaceThere is one set of I2C interface and one set of UART interface for debug or external MCU control the BK8000L. They share the two same GPIO0 and GPIO1.3.6.FM Receiver Control Interface
BK8000L DatasheetPage 8 of 14The FM receiver control interface consists of a two-wire I2C interface and a 13 MHz clock for FM receiver reference. 3.7.FLASH Access InterfaceThe BK8000L MCU is running with the external FLASH program memory and the internal instruction cache. The external FLASH can be also used to store user data such as key configuration and Bluetooth paring information.3.8.SPIThe 4-wires SPI supports high speed data communication, which can be used as interface to either external FLASH or LCD controller.3.9.SAR ADC and LEDThe SAR ADC has 10-bit resolution, and the two LED drivers support up to 10 mA current.The SAR has six active channel as follows.Table 3 ADC Channel TableChannel NumberDetected VoltageDescription1VBAT-pin/4Battery voltage 2VADC-pinPin VADC voltage 3Charge current detectorUsed to detect charge current and charge circuit control 4VCC5USB-pin/6USB voltage 5GPIO19GPIO19 voltage 6GPIO9GPIO9 voltage3.10.Audio PeripheralThere are one set of speech ADC with sample rate 8 kHz or 16 kHz, 44.1 kHz or 48 kHz. The DAC have two channels for stereo application, with sample rate 8 kHz, 16 kHz, 44.1 kHz or 48 kHz.
Low Power Bluetooth Audio SoCPage 9 of 14There is also a stereo line in interface, to allow external stereo input passing internal 31 dB programmable gain amplify to stereo output. 4.Electrical Characteristics4.1.Absolute Maximum RatingsParameterDescriptionMINTYPMAXUnitVCCBATBattery regulator Supply voltage-0.33.34.2VPRXRX input power-10-dBmTSTRStorage temperature range-40-150℃VCCIOIO interface voltage-0.32.83.6V4.2.Recommended Operating ConditionsParameterDescriptionMINTYPMAXUnitVCCBATBattery regulator Supply voltage2.83.34.2VTOPROperation temperature range-20-80℃VCCIOIO interface voltage1.8-4.2V4.3.System LDOStateDescriptionMINTYPMAXUnitVCC4BATVBAT2.84.2VVCC3SYSSYSLDO Output Voltage2.83.63.8VLoad CurrentLoading Current150mA4.4.Analog LDO/BUCKSystem can choose the analog BUCK or LDO as the power supply of RF and Audio part.StateDescriptionMINTYPMAXUnitAnalog LDOVCC3BUCKAAnalog LDO Input Voltage2.83.33.6VVBUCKAAnalog LDO Output Voltage1.71.82.4VLoad CurrentLoading Current100mAAnalog BUCKVCC3BUCKAAnalog BUCK Input Voltage2.83.33.6VVBUCKAAnalog BUCK Output Voltage1.71.82.4VLoad CurrentLoading Current100mASwitching frequencyBUCK modulation frequency2510MHz
BK8000L DatasheetPage 10 of 144.5.Digital LDO/BUCKSystem can also choose the digital BUCK or LDO as the power supply for the Digital part.StateDescriptionMINTYPMAXUnitDigital LDOVSYS3V8DDigital LDO Input Voltage2.83.33.6VVBUCKDDigital LDO Output Voltage1.21.35VLoad CurrentLoading Current100mADigital BUCKVSYS3V8DDigital BUCK Input Voltage2.83.33.6VVBUCKDDigital BUCK Output Voltage1.21.35VLoad CurrentLoading Current100mASwitching frequencyBUCK modulation frequency2510MHz4.6.USB LDOWhen USB is plug in, VCC3SYS will be generated from USB LDO.StateDescriptionMINTYPMAXUnitVCC5USBUSB Input Voltage4.7555.75VVCC3SYSUSBLDO Output Voltage3.3VLoad CurrentLoading Current100mA4.7.Typical Power Consumption StateDescriptionMINTYPMAXUnitShut downSoftware shut down, wake up from GPIO50uAIdle-SniffIdle state at Sniff mode900uAActive(A2DP)2DH520mAActive (HFP)HV120mA4.8.RF CharacteristicsParameterConditionMINTYPMAXUnitOperate Frequency2402~248024022480MHzRXSENS-1 MbpsBER=0.001-90dBmRXSENS-2 MbpsBER=0.0001-92dBmRXSENS-3 MbpsBER=0.0001-84dBmMaximum received signalBER=0.0010dBmMaximum RF transmit power5dBmRF Power Control Range30dB
Low Power Bluetooth Audio SoCPage 11 of 144.9.Audio CharacteristicsParameterConditionMINTYPMAXUnitDAC Output Amplitude1VrmsDAC output SNR1 kHz sine wave96dBDAC Sample Rate848kHzADC SNR1 kHz sine wave96dBADC Sample Rate848kHz5.Application SchematicIt will be provided with separatedocument.6.About the QualificationBy carefully PCB layout, the BK8000L RFperformance meets FCC, CE and BQB requirement. The Bluetooth protocol and profile provided by Beken are already qualified and listed in SIG website. If there is any end product listing requirement with the BK8000L, please inquire Beken for the related QDID authorization.
BK8000L DatasheetPage 12 of 147.Package InformationThe BK8000Luses the QFN 6x6 48-Pin package.
Low Power Bluetooth Audio SoCPage 13 of 148.Ordering InformationPart numberPackagePackingMOQ (ea)BK8000LQBQFN6mmx6mm48-PinTape Reel10 kRemark:MOQ: Minimum Order Quantity
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help.
Attention:LimitedModularApproval‐thisRFModulemaynotbesoldtothegenericpublicandrequiresprofessionalinstallation.DuetothefactthatthisRFModuleisnotequippedwithanownshielding,theend‐productincl.thisRFModulehastoshowcompliancetotheFCCrules(15C/radiatedemissions).(OEM)Integratorhastoassurecomplianceoftheentireend‐productincl.theintegratedRFModule.Additionalmeasurements(15C)and/orequipmentauthorizations(e.gmayneedtobeaddresseddependingonco‐locationorsimultaenoustransmissionissuesifapplicable.Integratorisremindedtoassurethattheseinstallationinstructionswillnotbemadeavailabletotheend‐userofthefinalhostdevice.   integratedintoany(portable,mobile,fixed)hostdevice.Thefinalhostdevice,intowhichthisRFModuleisintegrated"hastobelabelledwithanauxilliarylablestatingtheFCCIDoftheRFModule,suchas"ContainsFCCID: Dependingonthesizeofthefinalend‐product,the§15.19FCCstatement"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."shouldbeplacedalsoonthedeviceoralternativelywithinaprominentlocationoftheusersmanualThe§15.21"Changes or modifications to this unit not expresslyapprovedbythepartyresponsibleforcompliancecouldvoidtheuser’sauthoritytooperatetheequipment."statementhastobeincludedinaprominentlocationoftheusersmanual".2AG94F-6688)either a complete new certification or a Class II Permissive Change. the Integrator will be responsible to satisfy SAR/ RF Exposure requirements,when the module

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