Wireless Ir Headphone Transmitter Circuit

Posted on Aug 20, 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. Although the CD4046 is comprised of two phase comparators, a voltage-controlled oscillator (or VCO),

Wireless Ir Headphone Transmitter Circuit
Click here to download the full size of the above Circuit.

a source follower, and a zencr reference, only its VCO is used in this application.

Leave Comment

characters left:

New Circuits



Popular Circuits

Voltage Controlled Panner
Stand-by Battery Charger
Frequency Divider
Milliamp Meter to Voltmeter
6V6 6J5 Class A Vacuum Tube (Valve) Amplifier Circuit
op amp Why do some of my IE converter circuits have a large offset voltage
Car alarm circuit
X and Y direction motor
PM4040F application circuit switching power supply drive
UPC1651 produced by small family video transmitter circuit diagram