Na DealExtreme se před časem objevil zajímavý integrovaný obvod. VMR6512 je laditelný VKV FM stereo vysílač. Kromě toho je na čipu integrována řada dalších obvodů. V nejjednodušším zapojení stačí připojit anténu, napájení a zdroj NF signálu a voala - máme tu kompletní VKV vysílač.


Features:
  • It integrates advanced digital signal processor (DSP), frequency synthesizer, RF power amplifier and matching network
  • It can realize FM audio modulation without any external components
  • It can also achieve broadcast quality sound by using digital pre-emphasis, digital filtering, automatic gain control and digital frequency control technologies.
  • Broadcast standard sound quality
  • Fully integrated encapsulation, it can work without any external components.
  • Audio frequency processed by DSP, guarantying high quality sound
  • Using frequency synthetic technology, high stability of oscillation frequency
  • Output power adjustable. (up to 115dBuV)
  • Frequency range is 88.0MHz to 108.0MHz, low-end can be extended to 76.0MHz upon request.
  • It can input analog audio or digital audio
  • It possesses external UART interface and can be easily controlled by external CPU or PC machines
  • It provides frequency setting UP / DOWN input and can be used independently
  • Applications:
    • Hi-Fi wireless headphone
    • MP3 audio transponder in the car
    • Wireless microphones
    • Conference Broadcasting System
    • In building music broadcasting
    • In park music broadcasting
    • Accessories of audio-visual entertainment equipment
    • Radio station in campus

Příklad zapojení: