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BK5881 Single chip ETC+Bluetooth 5.2 (BR/LE) combination system on chip (SoC)
Classification:
Product
IC/Optical Lotus
WIFI IC
- Product Description
-
- Commodity name: BK5881 Single chip ETC+Bluetooth 5.2 (BR/LE) combination system on chip (SoC)
Overview
BK5881 is a highly integrated single-chip system on chip (SoC) that combines ETC+Bluetooth 5.2 (BR/LE). It integrates a high-performance 5.8GHz ETC transceiver, a 2.4GHz Bluetooth transceiver, a feature rich baseband processor, a memory controller, multiple analog and digital peripherals, as well as Bluetooth and 2.4GHz proprietary protocol stacks.
The 5.8GHz transceiver has been optimized and can be used for ETC with ASK modulation and demodulation. Compliant with Chinese Electronic Toll Collection (ETC) standards GB/T20851.1 and GB/T20851.2.
BK5881 adopts advanced design technology and ultra-low power consumption process technology, providing high integration and lowest power consumption for ETC applications.
characteristic
Bluetooth and 2.4 GHz proprietary protocol
Bluetooth 5.2 and 2.4 GHz exclusive protocols
• Supports Basic Rate (BR), Low Energy (LE) 1 Mbps, 2 Mbps, and Long Range (125 kbps and 500 kbps)
• Supports 2.4 GHz proprietary protocols of 1 Mbps, 2 Mbps, and 250 kbps
TX power up to+10 dBm
• Reception sensitivity -95 dBm
Active mode TX 0 dBm, step-down mode: 6.1 mA
Active mode RX, step-down mode: 5.5 mA
Bluetooth Direction Finding: Angle of Arrival (AoA) and Angle of Departure (AoD)
• Supports up to 16 antenna arrays for precise indoor positioning
Kernel and Memory
32-bit RISC MCU with a frequency of up to 64 MHz
Embedded 512 KB flash memory with ECC (Error Correction Code) and read protection
64 KB of memory
8 KB cache
UART/JTAG for debugging and downloading
Clock management
External oscillator: 16 MHz crystal oscillator (X16M), 32.768 MHz crystal oscillator (X32M)
Internal oscillator: 32 kHz ring oscillator (ROSC)
64 MHz phase-locked loop
energy management
1.8 to 3.6 V VCCBAT power supply
• on-chip power on reset (POR) and power off detector (BOD)
Embedded DC-DC converter (buck mode) and LDO regulator
Low power consumption:
-Deep sleep, blood pressure lowering mode: 1.2 μ A
-Low voltage standby, step-down mode: 3.2 μ A
-Normal standby, voltage reduction mode: 8.0 μ A
peripheral
25 GPIO
• 2 SPI
3 UARTs: 1 supports flash download, 2 supports 7816 protocol
• 1 I2C
• 1 CAN2.0B/CAN FD
One general-purpose DMA controller (GDMA) with 6 channels
6 32-bit PWM
12 bit SAR ADC, 3-channel
6 universal 32-bit timers/counters
• 2 watchdog timers
1 real-time counter (RTC)
• 1 infrared interface
• 1 temperature sensor
1 true random number generator (TRNG)
encapsulation
QFN48 package, 6 x 6 mm
• Operating temperature range: -40 to+105 ° C
8613632534755
Address: 12F, Building C, Tongjian Building, Nanyuan Street, Futian District, Shenzhen
