Document
C 126
BlueCreation
BC126 BC127
Fully Certified Bluetooth Version 4.0 Audio Module
Key Specifications
Bluetooth Certified 4.0 Audio module Dual Mode: Bluetooth and Bluetooth Low Energy (BLE) Backwards compatible with 1.1, 2.0, 2.1 + EDR and 3.0 Embedded Bluetooth Protocol Stack Supports HFP, A2DP, AVRCP, PBAP and SPP Supports IAP1/IAP2 profiles for connection to iOS devices and Apps Simple UART and GPIO interface for command and control Can connect to external Codecs with I2S, PCM, SPDIF interface Small form factor (11.8mm x 18mm x 3.2mm)
Applications
Wireless Speakers, Docks and Headsets Smart-Phone Audio Systems Automotive Infotainment Systems Medical Devices High Quality Audio Streaming Gaming Accessories and MP3 Players Analog/USB Media dongles
Description
BC126 is a highly flexible, low power, small form factor Bluetooth Version 4.0 Certified Audio module. It comes preloaded with BlueCreation Melody software, and is ideal for developers who want to quickly and cost effectively integrate Bluetooth functionality into their products.
Block Diagram
BlueCreation, St John’s Innovation Centre, Cowley Road, Cambridge CB4 0WS, United Kingdom
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Free Datasheet http://www.datasheet4u.com/
C 126
BlueCreation
BC126 BC127
General Specifications
Specifications Bluetooth Standard Interfaces Size Weight Description Bluetooth 4.0 Class 2 UART, AIO, GPIO, USB, SPI, Audio In, Mic In, PCM, I2C 11.8mm x 18mm x 3.2mm 1.1g
RF Specifications
Specifications Frequency Band Modulation Maximum Data Rate Operating Range RF Sensitivity Transmit Power Description 2,402 MHz to 2,480 MHz 8 DPSK, PI/4 DQPSK, GFSK 3Mbps (typical 1.6Mbps) Up to 30m 0.1% BER at -88dBm +4dBm
Audio Specifications
Specifications DAC resolution DAC Output Sample Rate DAC SNR Stereo Separation (Cross Talk) RF Sensitivity Transmit Power Description 16 bits 8 KHz to 90 KHz 96dB -87.7dB 0.1% BER at -88dBm +4dBm
Electrical Specifications
Specifications Supply Voltage Typical Current Typical Current Idle Operating Temperature Description 1.8V to 3.7 V DC 20mA (Music streaming) <5mA (Connectable) -40°C to 85°C
BlueCreation, St John’s Innovation Centre, Cowley Road, Cambridge CB4 0WS, United Kingdom
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C 126
BlueCreation
BC126 BC127
Module Footprint
BlueCreation, St John’s Innovation Centre, Cowley Road, Cambridge CB4 0WS, United Kingdom
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C 126
BlueCreation
BC126 BC127
Placement Considerations
BlueCreation, St John’s Innovation Centre, Cowley Road, Cambridge CB4 0WS, United Kingdom
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C 126
BlueCreation
BC126 BC127
PIN Description
No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Pin Name GND GND GND GND PIO_6 PIO_7 CAP_SENSE_1 CAP_SENSE_4 CAP_SENSE_3 CAP_SENSE_2 GND AIO_1 SPKR_LN SPKR_LP SPKR_RN SPKR_RP MIC_BIAS_A MIC_RN MIC_RP MIC_LN MIC_LP GND PIO_0 PIO_1 PIO5 PIO_4 GND VREGEN CHG_EXT VCHG Pin Type GND GND GND GND Bi-directional Bi-directional Analog Input Analog Input Analog Input Analog Input GND Bi-directional Audio output Audio output Audio output Audio output Analog input Analog input Analog input Analog input Analog input GND Bi-directional Bi-directional Bi-directional Bi-directional GND Analogue Charger input Charger input Pin Description Common Ground Common Ground Common Ground Common Ground Programmable input/output line Programmable input/output line Capacitive Touch Sense Input Capacitive Touch Sense Input Capacitive Touch Sense Input Capacitive Touch Sense Input Common Ground Analog programmable input/output line Speaker output negative, left Speaker output positive, left Speaker output negative, right Speaker output positive, right Microphone bias Microphone input negative, right Microphone input positive, right Microphone input negative, left Microphone input positive, left Common Ground Programmable input/output line Programmable input/output line Programmable input/output line Programmable input/output line Common Ground Take high to enable switch-mode regulator External battery charger control Battery Charger Input
BlueCreation, St John’s Innovation Centre, Cowley Road, Cambridge CB4 0WS, United Kingdom
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C 126
BlueCreation
BC126 BC127
No. 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
Pin Name VBAT_SENSE VBAT VDD_PADS 3V3_USB USB_N USB_P LED_0 LED_1 LED_2 UART_CTS UART_TX UART_RX UART_RTS RST# SPI_PCM# PCM_SYNC PCM_CLK PCM_OUT PCM_IN PIO_2 PIO_3
Pin Type Battery sense Battery terminal +ve Supply Supply Bi-directional Bi-directional Open drain output Open drain output Open drain output Bi-directional Bi-directional Bi-directional Bi-directional Reset Input Input Bi-directional Bi-directional CMOS output CMOS input, Bi-directional Bi-directional
Pin Description Battery charger Sense Battery Positive Positive Supply input Positive Supply input USB data negative USB data positive LED Driver LED Driver LED Driver UART Clear to Send UART TX Data UART RX Data UART request to send ,active low Reset if low for more than 5ms Select PCM/SPI Synchronous data sync Synchronou.