Bluetooth 5.2 Dual Mode and Proprietary 2.4 GHz Wireless System on


The BK3633 chip is a highly integrated wireless system on chip, which supports Bluetooth 5.2 Dual Mode and proprietary 2.4 GHz protocols. It integrates a high-performance RF transceiver, baseband, low-power processor, feature-rich peripheral units, programmable protocols and profiles to support a wide range of applications. The Flash program memory makes it suitable for customized applications.
Designed with advanced technology process and integrated with a DCDC switching regulator, the BK3633 features ultra-low power consumption and ultra-low leakage power. The embedded high-order interference suppression filter and fast automatic gain control logic make it work well in high-interference environments.


Bluetooth 5.4 Dual Mode and proprietary 2.4 GHz protocol
Around 5 mA full operation current
Around 1 μA deep sleep current with low power running timer
 Bluetooth Angle of Arrival (AoA) and Angle of Departure (AoD)

• Antenna array with maximum 16 antennas for precise positioning

Classic Bluetooth 1 Mbps
Proprietary 2.4 GHz 250 kbps, 1 Mbps and 2 Mbps
High output power up to 10 dBm and Bluetooth LE Power Control
32-bit RISC Core with 80 KB data memory and up to 80 MHz speed
 SiP Flash: 512 KB or 1 MB
32-byte eFUSE
Operating voltage: 0.9 ~ 1.5 V (boost), 2.0 ~ 3.6 V (buck)

16 MHz crystal reference clock with internal tuning load capacitance
64 MHz digital PLL clock
32 kHz ring oscillator
External 32 kHz crystal oscillator
MCU can run with any clock source with internal frequency divider
Dedicated audio PLL clock for I2S main clock
Interface and peripheral units
Quad IO FLASH programming
I2C interface
High-speed SPI interface up to 32 MHz
Two UART interfaces, one with UART download support

Interfaces and peripherals

• Quad IO FLASH programming

• I2C interface

• High-speed SPI interface up to 32 MHz

• Two UART interfaces, one supports UART download

• Multi-channel high-resolution 32-bit PWM with capture mode

• USB host and device interface with USB audio capabilities

• On-chip high-precision temperature sensor

• On-chip 10-bit general-purpose ADC

• GPIO with multiplexing interface function

• True Random Number Generator (TRNG)

• AES 128-bit hardware accelerator

• I2S/PCM digital audio interface, master-slave mode

• High-quality, high-speed, low-power clock output

• Code encryption and online decryption

• Secure JTAG and system protection

Typical package types

• 32-pin QFN 4 mm x 4 mm

• 40-pin QFN 5 mm x 5 mm

• 48-pin QFN 6 mm x 6 mm


The control command transmission of the unmanned aerial vehicle
Car keys

Contact Us

Resume delivery


Beken Corporation




沪ICP备07004607号 BY VTHINK