JL6C8 QFN32 IC for KCX_BT_EMITTER_V1.7 Bluetooth 5.3 audio transmitter and receiver two-in-one module board Stereo wireless module

JL6C8 QFN32 IC for KCX_BT_EMITTER_V1.7 Bluetooth 5.3 audio transmitter and receiver two-in-one module board Stereo wireless module
 
Applications
Bluetooth Stereo Sound Box
Bluetooth Mono Sound Box
Bluetooth TWS Sound Box
 
CPU
32-bit DSP supports hardware Float Point Unit(FPU)
Up to 240MHz programmable processor
64Vectored interrupts
4 Levels interrupt priority
 
DSP Audio Processing
SBC, AAC Audio decodes supported for BT audio
mSBC voice codecs supported for BT phone
Supports MP2, MP3, WMA, APE, FLAC,
AAC, MP4, M4A, WAV, AIF, AIFC audio decoding
Packet Loss Concealment (PLC) for voice processing
Acoustic echo cancellation/suppression (AEC,AES)
Single/Dual MIC Environmental Noise Cancellation (ENC)
Multi-band DRC limiter
30-band EQ configuration for voice Effects
 
Audio Codec
Two channels 16-bit DAC, SNR >= 95dB
Three channels 16-bit ADC , SNR >= 90dB
Sampling rates of
8KHz/11.025KHz/16KHz/22.05KHz/24KHz/
32KHz/44.1KHz/48KHz are supported
One analog MIC amplifier, build-in MIC bias generator
Supports two PDM digital MIC inputs
three channels Stereo analog MUX
Supports cap-less, single-ended, and
differential mode at the DAC path
Supports 16ohm and 32ohm Speaker loading
 
Bluetooth
Compliant with Bluetooth
V5.1+BR+EDR+BLE specification
Meet class1 class2 and class3 transmitting
power requirement
Support GFSK and π/4 DQPSK all paket types
Provides +6dbm transmitting power
receiver with -90dBm sensitivity
Fast AGC for enhanced dynamic range
Supports
a2dpavctpavdtpavrcphfpsppsmpattgapg
attrfcommsdpl2cap profile
 
Peripherals
 
One full speed USB 2.0 OTG controller
Four multi-function 16-bit timers, support
capture and PWM mode
Three 16-bit PWM generator for motor
driving
Three full-duplex basic UART, UART0 and
UART1 supports DMA mode
Two SPI interface supports host and device
mode
One hardware IIC interface supports host and
device mode
Built-in Cap Sense Key controller
10-bit ADC for analog sampling
External wake up/interrupt on all GPIOs
 
PMU
Low voltage LDO for internal digital and
analog circuit supply
3uA current consumption in the soft-off mode
Built-in LDO for the core, I/O, Bluetooth and
flash
VBAT is 2.2V to 5.5V
VDDIO is 2.2V to 3.6V
 
Package
QFN32(4mm*4mm)
 
Temperature
Operating temperature: -20℃ to +70℃
Storage temperature: -65℃ to +150℃
 
 

 
 
For more information about related Modules:
 

 
Description:
The KCX_BT_EMITTER module is a wireless Bluetooth audio transceiver module that integrates Bluetooth stereo audio transmission and reception. It uses the Bluetooth 5.3 protocol version, supports memorizing the last automatically connected Bluetooth device and automatically reconnecting, supports serial port AT command configuration to connect to a compatible specified Bluetooth device name, obtain search results, modify Bluetooth name, control connection and disconnection, and other commands. This module configures the module to work in Bluetooth audio transmission mode or Bluetooth audio reception mode by setting short-circuit solder joints, supports indicator status display, and connection status level output. It is widely used in occasions that require Bluetooth audio reception, Bluetooth audio transmission, wireless audio transmission, DIY modification, etc. When configured in Bluetooth audio transmission mode: it can wirelessly transmit stereo audio signals via Bluetooth with the module configured in reception mode, and can also be connected to some Bluetooth headsets and Bluetooth speakers to wirelessly transmit audio signals to these Bluetooth receiving devices. When configured in Bluetooth audio reception mode: it can be connected to smartphones and tablets to play Bluetooth music.

KCX_BT_EMITTER Bluetooth Audio Transmitter Module Serial Port Operation Manual
 
1.Introduction: 
 
The TTL serial interface is an extended interface of the module, which is mainly used to realize the control and remote management of the computer, microcontroller and other controllers and the Bluetooth transmitter module. This article introduces how to use the serial port to operate the Bluetooth transmitter module.
 
2:Schematic diagram
Computer control Bluetooth module connection diagram (using computer to control Bluetooth module via USB to TTL module)
 
3: USB to TTL line driver installation
 If you control the Bluetooth module by a computer, you need to use a USB to TTL serial port module to convert the interface. This driver is only a USB to TTL serial port cable driver and has nothing to do with the Bluetooth module (you don’t need to install it when you don’t need the USB to TTL serial port module). After the USB cable is plugged into the computer, you will be prompted to install the driver. Double-click CH341SER_V3.3[2012-02].EXE to install the driver.
 
Connecting Types: