IR headphone transmitter CD4046


Posted on Sep 10, 2012

The transmitter for the wireless headphones is built around a CD4046 CMOS phase-locked loop, coupled with a driver transistor, and a pair of infrared LEDs.


IR headphone transmitter CD4046
Click here to download the full size of the above Circuit.

Although the CD4046 is comprised of two phase comparators, a voltage-controlled oscillator (or VCO), a source follower, and a zener reference, only its VCO is used in this application.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Power Failure Light
    300HZ - 3KHZ Audio Filter
    Low-battery-protector-
    twitterpop
    Updated 60-100W Hi-Fi Power Amplifier
    Mosfet Power Amplifier 100 Watt Schematic Diagram
    phone hold circuit
    SN74AVCA406E MMC SD Card And Memory Stick Voltage-Translation Transceiver



    Top