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BK4802 is a half duplex RF transceiver chip designed specifically for toy intercom/toy remote control.

Classification:

IC/Optical Lotus

WIFI IC


  • Product Description
    • Commodity name: BK4802 is a half duplex RF transceiver chip designed specifically for toy intercom/toy remote control.

    Overview
    BK4802 is a half duplex RF transceiver chip designed specifically for toy intercom/toy remote control. It uses highly integrated CMOS technology and supports FM modulation/demodulation mode and ASK modulation/demodulation mode. This chip integrates functional modules such as RF switch, low-noise amplifier, mixer, IF amplifier/filter, analog-to-digital converter, FM/ASK demodulation, frequency synthesizer, RF power amplifier, microphone amplifier, audio amplifier, etc. The overall solution only requires an additional 21.7 MHz crystal and several capacitor elements to complete the production of a high-performance wireless transceiver module. This chip can select 16 built-in communication channels through pins B0/C2/C1/C0. More communication channels can be achieved through external EEPROM.
    feature
    1. Supports frequency range of 19MHz~33MHz
    2. Supports frequency range of 38MHz~66MHz
    3. Supports 127MHz~177MHz frequency band
    4. Supports frequency range of 380MHz~530MHz
    5. Half duplex transceiver chip
    6. 12.5/25 kHz channel spacing
    7. Single chip integrated FM modulation/demodulation
    8. On chip 10dBm RF power amplifier
    9. 2.8V~3.6V power supply
    10. Automatic noise reduction
    11. Integrated RF switch
    12. Support ASK modulation/demodulation
    13. Built in microphone amplifier
    14. Built in 250mW audio amplifier
    15. Can work independently without MCU
    16. I2C interface
    17. Built in ROM supports 16 channels
    18. Support external EEPROM
    19. QFN 4x4 32PIN package