The ARF476FL simplifies designs for high-power, high-voltage RF generators that are used extensively in plasma generation, CO2 laser exciters, medical MRI equipment, FM broadcast transmitters, and a wide variety of HF/VHF communications equipment including solid state broadband linear amplifiers from 1.5 to 60MHz and FM broadcast transmitters from 88-108 MHz.To specifically address the needs of these demanding markets, Microsemi has... [ more ]
Audio compressor-limiter is a device, which weakens audio loud signals and intensifies silent signals. On its output there is signal with constant level. Signal clipping on the limiter output allows to increase the signal level without exceeding maximum frequency deviation limit 75 kHz. It's very suitable since preemphasis is used.This Stereo Compressor-Limiter have signal overshooting protection and have no precise preemphasis with HF... [ more ]
This FM amplifier project explain how you can build and connect a powerful 1W amplifier to your FM transmitters. A perfect solution for those wishing to listen to their favourite tunes in the car, house, garden, school, campus, party, etc.Background Today it is very popular to connect the Ipod, MP3 or CD player to some kind of FM transmitter. The transmitting signal can the be picked up by any FM radio receiver. Most often used in cars. The... [ more ]
The FM transmitter circuit includes RDS/SCA input and Audio/MPX input with optional preemphasis. This PLL transmitter can be used with or without stereo encoder. Tuning range over the FM band is provided by two buttons that control dual-speed PLL. The transmitter can work also without the LCD display.Download Parts List here.Printed Circuit Board (PCB)You may choose between single-sided PCB (only bottom layer) and... [ more ]
This FM transmitter circuit is PLL controlled and still very easy to build. Frequency is set with 4 buttons and a LCD display show you the frequency. Print your own display text on first line. The smallest step size is 50kHz and the transmitter will work from 88 to 108 MHz.PIC870 Controller This is the main controlling unit for the FM transmitter>. This part is very important since the transmitter frequency is digitally controlled and... [ more ]
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