Digital Frequency Modulation FM7303 Radio Board Stereo Decoding FM Radio

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FM7303 type FM radio kit uses three Toshiba dedicated chips to form the receiving part: TA7335P is a classic FM front-end chip, which is widely used in many radio and receiver products at home and abroad. TA7303P is a dedicated FM intermediate amplifier and frequency discrimination chip. Many famous models of SHARP radios, such as GF-777z, GF-515z, GF-6060X, GF-9191X, etc., use it. Many car radios It can also be found. TA7061BP is a dedicated mid-amp chip, and there is no application case of radio cassette recorders and radios. TA7343AP is a phase-locked loop stereo decoder. The combination of these four chips and 2025 power amplifier into a simple circuit can provide higher receiving performance, suitable for amateur radio enthusiasts, can also be used as an entry-level FM DX equipment.
【product name】
FM7303 integrated circuit FM radio experiment board assembly kit v2.0/2.12
【Main Features】
1. Receiving frequency: 88~108MHz FM (frequency modulation broadcasting band);
2. Stereo demodulation: Yes;
3. Power supply voltage: 9~12V;
4. Output power: maximum 2W x 2(8Ω);
5. Circuit board size: 194mm x 96 mm.
【Features】
1. With dedicated mid-amp chip, high sensitivity, you can listen to many radio stations without pulling out the antenna;
2. With a digital frequency display, it can directly display the radio frequency and can be used as a debugging instrument;
3. With pointer type signal meter, it has excellent use experience and can be used as a debugging instrument;
4. It has the muting function (Mute) only available in high-end models, the muting sensitivity is adjustable and can be turned off manually;
5. With automatic frequency control function (AFC) that can be turned off;
6. The stereo decoder does not need to adjust the degree of separation;
7. Using 2025 dual-channel power amplifier chip, high power and good sound quality.
【product description】
1. The circuit of this kit is assembled according to the official chip data manual and some classic cases. Practice has proved that it has the advantages of easy production and easy debugging, and the effect is far better than simple discrete circuits;
2. The manual contains circuit schematic diagrams and circuit board diagrams, as well as debugging methods and experience under amateur conditions. For more information and professional debugging methods, please download or refer to relevant books on the Internet;
3. The three chips of TA7335P, TA7303P and TA7343AP have a long history. I am sure that there is no original brand new source. Basically what can be obtained are disassembled products or years of inventory, with older colors, wax and pin oxidation. The price of the disassembled products of these three types of chips sold online is not low, and a small amount of them are damaged. The three types of chips issued by our shop have been tested with IC sockets, and the unusable waste products are screened out to ensure normal functions. Except for the three-type chip, all other components in the kit are brand new. If you do not accept disassembly of the chip, please do not shoot;
4. As the supply of the three chips of TA7335P, TA7303P and TA7343AP is small, our shop may replace them with compatible models, such as CD7335, KIA6003S, KIA6043S, etc.;
5. Capacitors that require high stability, such as resonant capacitors, are equipped with expensive mica capacitors or NPO series ceramic capacitors. The remaining capacitors with small capacity are ceramic chip capacitors or film capacitors, and the large-capacity capacitors (μF class) are electrolytic capacitors;
6. The variable capacitor uses CBM443DF frequency modulation and amplitude modulation quadruple variable capacitor, and only the FM connection is used;
7. The circuit board base is made of glass fiber material, the thickness measured is about 1.5~1.6mm, the single-sided green/butter white lettering, the pad is sprayed with tin, and can be directly welded without grinding;
8. There may be some scratches and dust on the board base surface and copper foil surface, as well as traces of washing the board;
9. The circuit board obtained by the buyer may be slightly different from the sample in the picture, mainly due to the change of component position and the same circuit structure. This product has been modified and perfected n times (mainly to modify the wiring of the circuit board) from the prototype sample to the sold product, and it is still being improved. Usually minor insubstantial modifications, such as slight movement of components and minor wiring adjustments will not change the version number, and will not re-photograph and upload, hereby declare.
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Returns & Refund Policy
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Please take care it.Less than 30 days,we can't take a refund
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If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please keep in touch with us and double check the return address before you return it.
If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.
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