RF chip

2.4GHz chip SI24R1

Makers： CSM/zhongkewei
typology： Wireless RF Transceiver Chips
place of origin： china
price： 2.3CNY
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2.4GHz data communication chip SI24R1(图1)

2.4GHz data communication chip SI24R1(图4)

Si24R1 is a general-purpose low-power, high-performance 2.4GHz wireless RF transceiver chip, designed for low-power wireless occasions, the operating frequency range of 2400MHz-2525MHz, support for 2Mbps, 1Mbps, 250Kbps three data rates.

The Si24R1 has a maximum transmit power of +7dBm (adjustable), a shutdown current of only 1uA, and a receive sensitivity of -83dBm @2Mbps. In active card applications, the chip is in a sleep state most of the time, so the Si24R1's overall power consumption is very low, and it can easily be realized for more than 3 years of operation.

operating frequency	2.4GHz
Shutdown current	1uA
Transmit power/current	+7dBm(high)	25mA
	+4dBm	16mA
	0dBm	12mA
	-6dBm	9.5mA
	-12dBm	8.5mA
data rate	2Mbps	1Mbps	250Kbps
receiver sensitivity	-83dBm	-87dBm	-96dBm
power wastage	15mA	14.5mA	14mA
Supply Voltage	1.9-3.6V
modulation method	GFSK/FSK
Standby Current	15uA
interface protocol	10MHz four-line SPI
Quick Start Time	≤130uS
Digital IO Voltage	1.9V-5.25V
external crystal oscillator	16MHz±60ppm
other	Internally integrated high PSRR LDO
	Intelligent ARQ baseband protocol engine integrated internally
	Send/receive data hardware interrupt output
	Supports 1bit RSSI output
	Fewer peripheral components, lower system application costs