This is the BH1417 USB FM Transmitter featuring a built-in PLL circuit. It converts low-frequency signals into high-frequency signals, allowing any audio device with FM radio capabilities (such as stereo systems, car CD players, MP3 players, and DVD players) to function as a standard radio station. The transmitter's power is adequate for reliable signal reception over distances of several tens of meters. The core of the device is the BH1417F chip, which is integrated into a typical circuit design. This device encompasses all the essential circuitry required to generate a composite stereo signal.
The BH1417 USB FM Transmitter operates by utilizing a phase-locked loop (PLL) circuit, which ensures stable frequency modulation. The PLL maintains the output frequency of the transmitter, allowing it to lock onto the desired FM frequency, thereby minimizing drift and ensuring consistent performance. The BH1417F chip is designed for ease of integration, featuring built-in oscillators and filters that simplify the design process for developers.
The transmitter typically includes several key components such as audio input jacks, a power supply circuit, and an antenna for signal transmission. The audio input can be connected to various devices, enabling the transmission of audio signals wirelessly. The power supply circuit is essential for providing the necessary voltage and current to the BH1417F chip and other components, ensuring reliable operation.
An important aspect of the design is the antenna, which plays a crucial role in the effective transmission of the FM signal. The choice of antenna type and its placement can significantly affect the range and quality of the transmitted signal. For optimal performance, the antenna should be designed to match the frequency range of the transmitter and be positioned to minimize obstructions.
In summary, the BH1417 USB FM Transmitter is a versatile device that allows for the wireless transmission of audio signals using FM technology. Its integration of the BH1417F chip and PLL circuit facilitates stable and reliable operation, making it suitable for a wide range of audio devices. The design considerations surrounding the power supply, audio input, and antenna are critical to achieving the desired performance and range.Here`s BH1417 USB FM Transmitter with built-in PLL circuit. Its low-frequency signal is converted into high-frequency, which can take any audio device with FM radio (stereo, car CD, MP3, DVD player, etc.), as a normal radio station. Transmitter power is sufficient for reliable reception of its signal within a few tens of meters. The basis of the device is a chip BH1417F, included in a typical scheme. This device contains all the necessary circuitry to generate a composite stereo signal c of the. 🔗 External reference
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