BK4815   

                                Analog Two Way Radio IC

Features:

•      World wide band: 128 ~ 590 MHz
  ? 12.5/25 kHz channel spacing
  ? On chip 5 dBm RF PA
  ? 3.0 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 32-Pin package

Applications:

1.      Personal Radio Service
   ? Baby Monitor
   ? Toys

General Description

         The BK4815N is a half duplex TDD FM transceiver operating from 124 MHz to 560 MHz band for worldwide personal radio.

Besides speech communication, theBK4815N on-chip FSK data modemsupports F2D and F1W emission to be used in both FRS and DPMR band for text

message and GPS information exchange. The BK4815N is a complete, small form factor solution optimized for low-power,low-cost,

and highly integrated mobile and portable consumer electronic devices, requiring only a few external decoupling capacitors and an external inductor for input matching.