JL Bluetooth Chip Features

CPU

32-bit DSP supports hardware Float Point Unit(FPU)

Up to 160MHz programmable processor

64Vectored interrupts

4 Levels interrupt priority

DSPAudio Processing

SBC, AACAudio decodes supported for BT audio

mSBC voice codec 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

20-band EQ configuration for voice Effects

Audio Codec

Two channels 24-bit DAC, SNR >= 101dB

Two channels 24-bitADC , 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

One channel 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 packet types

Provides maximum +8dbm@BDR,+6dbm@EDR transmitting power receiver with -94dBm@EDR sensitivity

FastAGC for enhanced dynamic range

Supports a2dp\avctp\avdtp\avrcp\hfp\spp\smp\att\gap gatt\rfcomm\sdp\l2cap profile a2dp 1.3\avctp 1.4\avdtp

1.3\avrcp 1.5\hfp 1.5 \spp 1.0\rfcomm 1.2\pnp 1.3\hid 1.0\sdp core4.2\l2cap core 4.2

Peripherals

One full speed USB 2.0 OTG controller

Six multi-function 32-bit timers, support capture and PWM mode

Three full-duplex basic UART, support DMAmode

One hardware IIC interface supports host and device mode

Two Built-in low power Cap Sense Keys

Built-in Cap Sense Key controller

10-bitADC for analog sampling

External wake up/interrupt on all GPIOs

PMU

Low voltage LDO and DC-DC for internal digital and analog circuit supply

2uAcurrent consumption in the soft-off mode

Built-in LDO and DC-DC for the core, I/O,

Bluetooth and flash

VBATis 2.2V to 4.5V

VDDIO is 2.2V to 3.4V

Packages

QFN20(3mm*3mm)

Temperature

Operating temperature: -40℃to+85℃

Storage temperature: -65℃ to +150℃

Applications

Bluetooth TWS Headset