2.4GHz Wireless Transceiver Chip - RF298

RF298 is a low-cost, highly integrated 2.4GHz wireless transceiver chip. It operates in the worldwide ISM band of 2.400~2.483GHz. The chip integrates a transmitter, receiver, frequency synthesizer, and GFSK modem on-chip. RF298 transmits GFSK signals with a maximum transmit power of 10dBm, achieving a transmission distance of over 120 meters in open areas, with a standard application of 8dBm. The receiver uses a low-IF architecture with a sensitivity of -86dBm. The chip highly integrates external components internally, including RF front-end matching circuits, 22K resistors, crystal load capacitors, VDD capacitors, etc. Currently, the chip requires only 2 capacitors and 1 crystal oscillator as external components.

I. Features of Wireless Chip - RF298:

Low Power Consumption:
- Transmit mode (0dBm) operating current 16mA
- Receive mode operating current 14mA
- Sleep current 1.5uA
High Integration:
- Only 2 capacitors and 1 crystal oscillator required for external components
Low Cost:
- Supports 16MHz crystal oscillator ±60ppm
- Supports double-layer PCB design
- Supports ESOP8 package
- Supports SPI interface communication
- Can use PCB microstrip antenna
High Performance:
- Receive sensitivity of -86dBm in 1Mbps mode
- Maximum transmit power of 10dBm in special applications in 1Mbps mode, with transmission distance up to 200 meters
- Standard application transmit output power of 8dBm
- Good anti-interference performance, high adjacent channel rejection of receive filter
Built-in auto retransmission and auto_ack function
Supports 4-wire SPI interface with maximum speed of 8Mbps

II. Applications of Wireless Chip - RF298:

TV and set-top box remote controls
Smart home and IoT systems
Remote control toys and wireless game controllers
Wireless industrial control equipment