Features

 World wide band: 18 MHz ~ 660 MHz,

840 MHz ~1300 MHz

 12.5/25/6.25/20 kHz channel spacing

 On chip 7 dBm RF PA

 2.6 V to 3.6 V power supply

 CTCSS tone receiver with tail CTCSS

frequency detector

 23/24 bit programmable DCS code

 Standard DTMF and programmable

in-band dual tone

 SELCALL and programmable in-band

single tone

 FSK data modem

 Frequency inversion scrambler

 Voice activated switch (VOX)

 RF Signal strength measurement

 TX Audio signal strength indication

and RX audio signal strength

indication

 3-wires interface with MCU with

maximum 8 Mbps clock rate

 QFN 4x4 32-Pin package