SI24R1 2.4 GHz RF Wireless SPI Transceiver chip QFN20

Introduction:

Si24Ri is a single chip radio transceiver for the world wide 2.4 - 2.5 GHz ISM band. The transceiver consists of a fully integrated frequency synthesizer, a power amplifier, a crystal oscillator, a demodulator, modulator and Enhanced ShockBurst™ protocol engine. Output power, frequency channels, and protocol setup are easily programmable through a SPI interface. Current consumption is very low, only 9.0mA at an output power of -6dBm and 12.3mA in RX mode. Built-in Power Down and Standby modes makes power saving easily realizable. 

Key Features:

True single chip GFSK transceiver 

• Complete OSI Link Layer in hardware

• Keyless entry • Enhanced ShockBurst™

• Auto ACK & retransmit 

• Address and CRC computation

• On the air data rate 1 or 2Mbps 

• Digital interface (SPI) speed 0-8 Mbps 

• 125 RF channel operation

• Short switching time enable frequency hopping

• Fully RF compatible with nRF24XX

• 5V tolerant signal input pads 

• 20-pin package (QFN20 4x4mm) 

• Uses ultra low cost +/- 60 ppm crystal 

• Uses low cost chip inductors and 2-layer PCB 

• Power supply range: 1.9 to 3.6 V 

Datasheet