BK4819N 博通无线对讲机射频芯片

                              BK4819N  博通无线对讲机射频芯片

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

Applications

 Personal Radio Service

 Baby Monitor

 Toys

General Description

The BK4819 is a half duplex TDD FM

transceiver operating within 18 MHz ~ 660

MHz, 840 MHz ~1300 MHz band range for

worldwide personal radio. Besides speech

communication, the BK4819 on-chip FSK

data modem supports F2D and F1W

emission to be used in both FRS and

DPMR band for text message and GPS

information exchange.

The BK4819 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.