RF Module

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RF Module

The Scorpion RF Module is a 2.4GHz ISM band RF module consists of an EM198850 transceiver, a 12MHz crystal and Inverted F Antenna in a small board size.

This module has high transmission data rate; low current consumption and simple control interface is easy to apply to the wireless products.

Key Features of RF Module

  • On-board X-Tal Oscillator: 12MHz
  • COB Type RF chip
  • On-board Pattern Antenna
  • Size: 12mm x 22mm
Module Description

Pin Description

Pin Name Description
1 EXT12M Not Used
2 VDD Power +3.3V
3 SSI_MISO SPI Master Input / Slave Output
4 CE Chip enable
5 SPI_CLK SPI input clock
6 SSI_MOSI SPI Master Output / Slave Input
7 CSn SPI selection
8 RSSI IRQ_RSSI output High
9 DR_IRQ Interrupt signal in buffer mode
10 GND Ground

RF Chip Specification

  • Frequency range: 2402~2480Mhz
  • Channel Spacing: 1Mhz
  • Channel Switching Speed: < 125us
  • Modulation: FSK
  • Operation Voltage: 1.8~3.6V
  • Output Power: +0dBm
  • Sensitivity: -90dBm / -85dBm @0.1% BER 1Mbps / 1.6Mbps(w/o ant.)
  • Built-in Antenna: -5dBi
  • TDD full-duplex
  • Supports Auto Ack and & Retransmit
  • Supports Star-Network, 6-ch
  • SPI interface
  • Application: Remote Controllers, Alarm and Security, Home Automation etc..