125kHz wake-up function 2.4GHz single transmitter chip-si24r2h

Ultra low power consumption and high performance 125KHz Wake up function 2.4GHz Wireless single transmitter chip --Si24R2H

Si24R2H It's a job in 2.4GHz ISM Band emission and 125KHz receive , Designed for ultra low power wireless application scenarios , Wireless transceiver chip integrated with embedded baseband . The transmitting frequency range is 2400MHz-2525MHz, share 126 individual 1MHz Bandwidth channel , The receiving frequency range is 15KHz-150KHz. Si24R2H Built in three channels ASK Receiver , Can be detected 15KHz-150KHz Between LF Carrier frequency data signal , And trigger 2.4GHz launch , Launch content configurable . Si24R2H use GFSK/FSK Digital modulation and demodulation technology . Data transfer rate and PA The output power can be adjusted , Support 2Mbps、1Mbps and 250Kbps Three transmit data rates . High data rate can complete the same data sending and receiving in a shorter time , So it can have lower power consumption .

The product features are as follows

1） High precision position positioning .Si24R2H adopt 125KHz The receiver can realize high-precision position positioning , Support 16 Bit or 32 Wake up mode of Manchester and judgment of automatic entrance and exit direction , It is applicable to various Internet of things application scenarios and PKE Keyless system , It provides a more competitive integration scheme for accurately positioning the market ;

2） Temperature measurement and alarm function .Si24R2H Built in a variety of temperature sensors and interfaces , It can realize the functions of test, detection and alarm . Internal integration 10bit Digital temperature sensor , It can be connected externally NTC Resistance or SHT21 Temperature and humidity sensors and MLX90615 Infrared temperature sensor , Realization of human body temperature measurement ;

3） Realize the linkage with mobile phone .Si24R2H Support launch BLE Bluetooth broadcast package ;

4） The peripheral design is simple , No programming required .Si24R2H It is easy to operate , With very low system application cost , Internally integrated NVM The memory automatically completes the loading and transmission of data , No external is required MCU, Only a few peripheral passive components can form an active device RFID Wireless data transceiver system .NVM The memory can store register configuration and transmitted data content , It will not be lost after power failure , Data can be maintained 10 In the above .

stay 3.3V At supply voltage , No external high pressure is required , external MCU Through the four wires of the chip SPI Interface or 125KHz Wireless completion NVM Configuration programming , The maximum number of programmable times of the chip is 32 Time . Chip support NVM Lock , prevent NVM Configure data readback , Ensure user data security ;

5） Consistency of mass production . Embedded 125KHz Receiver implementation internal NVM Programming , Very convenient for mass production , Reduce production accidents caused by product consistency , So as to speed up the production efficiency of electronic labels ;

6） Ultra-low power consumption .Si24R2H Turn on the automatic launch function , Inside Watchdog And inside RCOSC The clock works , Inside Timer The timer starts counting , The chip works in sleep , All register values are the same as FIFO The value remains the same ,RTC Working with a watchdog , At this time, the standby current is only 1uA. When inside Timer A timer or 125KHz Trigger wake-up , The automatic transmission controller automatically completes the data from NVM Loading and launching of memory , After data transmission , The chip immediately goes to sleep .Si24R2H The average power consumption is very low , It is especially suitable for button battery powered application systems , The service life of the label exceeds 3 In the above .

The main features ：

The launch works at 2.4GHz ISM Frequency band , Launch compatibility BLE 4.2 Receiving work in 15KHz-150KHz built-in 32 Sub programmable NVM Memory 3.3V Programming voltage

Transmission modulation mode ：GFSK

Receive modulation mode ：ASK

Transmit data rate ：2Mbps/1Mbps/250Kbps

Minimum standby current ：1uA

Wide power supply voltage range ：2.1-3.6V（ launch ）

Programmable transmit power ：-3dBm~+14dBm

Emission current ：18mA（0dBm） 125KHz

Minimum monitoring current ：3.3uA 125KHz

Reception sensitivity ：60uVRMS

Integrated low voltage automatic alarm function

Integrated temperature alarm and anti disassembly alarm function

Integrated anti-collision communication mechanism

With ultra-low power consumption 2.4GHz Automatic launch /125KHz Trigger launch function

Integrate 125KHz Trigger the automatic detection function and position positioning function of the access door

Integrate 125KHz Wireless programming function , A programmable 16bit/32bit Manchester code wake up

Built in three channel low power consumption ASK Receiver

built-in 10bit Digital temperature sensor , It can be connected externally NTC/SHT21/MLX90615 Temperature sensor

built-in 3KHz RCOSC And hardware Watchdog

The highest 10MHz Four lines SPI Interface

Transmit data hardware interrupt output

QFN32 / 4mm*4mm*0.8mm

32.768KHz Crystal oscillator optional

Low cost 16M Crystal oscillator ：16MHz±20ppm

compatible Si24R1 and Si24R2X Launch function

Range of application ：

Ultra low power active RFID System

Smart campus card management system

Electric bicycle driving supervision system

Intelligent cold chain temperature transportation management system

Animal management system of animal husbandry

Fixed assets supervision system

Intelligent parking management system

automobile PKE Keyless entry system