BK4813

Analog Two Way Radio IC BK4813 Features  World wide band: 134 ~ 490 MHz  12.5/25 kHz channel spacing  On chip 4 dBm RF PA  2.4 V to 3.6 V power supply  CTCSS tone receiver with up to parallel eight frequency detector  23/24 bit programmable DCS code  Standard DTMF and programmable in-band dual tone  SELCALL and programmable in-band single tone  1.2/2.4 kbps FSK data modem with either F2D or F1W modulation type  Frequency inversion scrambler  Voice activated switch (VOX) and time-out timer  RF Signal strength measurement and signal quality 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 24-Pin package Applications  Personal Radio Service  Baby Monitor  Toys General Description The BK4813 is a half duplex TDD FM transceiver operating from 130 MHz to 490 MHz band for worldwide personal radio. Besides speech communication, the ...