TDA9887 IF-PLL demodulator with FM radio circuit

The integrated circuit (IC) is a multistandard vision and sound intermediate frequency (IF) phase-locked loop (PLL) demodulator that operates without the need for alignment. It supports multiple standards, including PAL, SECAM, and NTSC, and is capable of processing both positive and negative modulation, as well as sound amplitude modulation (AM) and frequency modulation (FM). A unique feature of this IC is its ability to demodulate FM radio signals at a frequency of 10.7 MHz.

The IC's design allows it to handle a variety of modulation schemes, making it suitable for diverse applications in television and radio broadcasting. The PLL architecture ensures that the demodulation process is stable and accurate, providing high-quality audio and video output. The inclusion of both AM and FM processing capabilities allows the IC to be utilized in a wide range of devices, from traditional television sets to modern multimedia receivers.

The device's multistandard functionality is particularly beneficial in regions where different broadcasting standards coexist, enabling seamless reception and playback of various signal formats. The alignment-free operation simplifies the manufacturing process, reducing production costs and improving reliability. Additionally, the IC's capability to demodulate FM radio signals at 10.7 MHz makes it an ideal choice for integration into FM radio receivers, ensuring clear and precise audio reproduction.

In summary, this IC serves as a versatile solution for demodulating both vision and sound signals across multiple standards, making it a valuable component in the design of modern electronic communication devices. Its advanced features and robust performance characteristics position it as a critical element in the field of audio and video processing.The IC is an alignment-free multistandard (PAL, SECAM and NTSC) vision and sound IF signal PLL demodulator for positive and negative modulation, including sound AM and FM processing. A special function is implemented for the demodulation of FM radio signals (fRIF = 10. 7 MHz). 🔗 External reference