Digital radios board in comparison

DC 5V-24V.

32 BIT ARM PROCESSOR This circuit board integrates a high-performance 32-bit ARM processor, providing powerful processing capabilities to ensure smooth and efficient digital radio communication. By enhancing overall system performance and reliability, it delivers an improved user experience.

DAB DAB+ AND FM DIGITAL RADIO With the iStar Portable DAB+ radio, you can enjoy your favourite radio stations with crisp and clear audio quality wherever you go. DAB offers enhanced digital radio quality, and allows you to access a range of digital radio stations. The clear LCD screen lets you know exactly what you are listening to.

It supports mp3, wma, wav, flac, ape lossless music formats and can connect two 40w speakers at the same time.

2. LCD screen display, synchronous display of . Power-off memory

The digital signal processing () can perform channel selection, FM demodulation and stereo audio processing. The internal automatic gain control (AGC) circuit controls the gain of the low-noise amplifier (LNA) to more sensitive and more powerful in noise suppression.

The FM receiver uses a mixer to reduce the signal to a low intermediate frequency, thereby reducing additional peripheral circuit devices. The automatic frequency control (AFC) adjusts the voltage-controlled oscillator to generate an orthogonal local signal to the mixer. The output of the orthogonal mixer is amplified, filtered and digitized by a high-resolution analog-to-digital converter (ADC).

- Enjoy superior sound quality with DAB+ and FM radio, ensuring a vast selection of stations with crisp, uninterrupted audio

The Si4703-C is a complete FM tuner receiver system from FM radio input to stereo output. A digital processor is integrated on the chip to handle the symbol decoding block synchronization, error detection and error correction functions required by the Radio Data Broadcasting System (RBDS).

The FM receiver uses a mixer to reduce the signal to a low intermediate frequency, thereby reducing additional peripheral circuit devices. The automatic frequency control (AFC) adjusts the voltage-controlled oscillator to generate an orthogonal local signal to the mixer. The output of the orthogonal mixer is amplified, filtered and digitized by a high-resolution analog-to-digital converter (ADC).

The digital signal processing () can perform channel selection, FM demodulation and stereo audio processing. The internal automatic gain control (AGC) circuit controls the gain of the low-noise amplifier (LNA) to more sensitive and more powerful in noise suppression.

The FM receiver uses a mixer to reduce the signal to a low intermediate frequency, thereby reducing additional peripheral circuit devices. The automatic frequency control (AFC) adjusts the voltage-controlled oscillator to generate an orthogonal local signal to the mixer. The output of the orthogonal mixer is amplified, filtered and digitized by a high-resolution analog-to-digital converter (ADC).