Circuit Description
   The AX5051 is a true single chip low-power CMOS transceiver primarily for use in SRD bands. The on-chip transceiver consists of a fully integrated RF front-end with modulator, and demodulator. Base band data processing is implemented in an advanced and flexible communication controller that enables user-friendly communication via the SPI interface.

APPLICATIONs
• Telemetry
• Sensor readout, thermostats
• AMR
• Toys
• Wireless audio
• Wireless networks
• Wireless M-Bus
• Access control
• Remote keyless entry
• Remote controls
• Active RFID
• Compatible with FCC Part
   15.247, FCC Part 15.249, EN
   300 220 wide band, Wireless
   M-Bus S/T Mode 868 MHz,
   Konnex RF, ARIB T-67,
   802.15.4