Single Chip FM Radio circuit

Single Chip FM Radio

Description.

Here is a compact low cost FM radio circuit using IC TDA 7000. This circuit is designed as per the data sheet and the result is excellent.Ideal for all category of electronic enthusiasts.

The TDA7000 is a monolithic integrated circuit for mono FM portable radios, where a minimum on peripheral components is crucial. The IC TDA 7000 has a Frequency-Locked-Loop system with an intermediate frequency of 70 kHz. The intermediate frequency selectivity is achieved by active RC filters. The only function which needs alignment is the resonant circuit for the oscillator, thus selecting the reception frequency. Spurious reception is avoided by means of a mute circuit, which also eliminates too noisy input signals. Special steps are taken to meet the radiation requirements.

FM Radio Circuit Diagram with Parts List. FM Radio Circuit

Notes

  • For L1 and L2 wind 5 turns of 0.6 mm enameled Copper wire on a 4 mm dia plastic former.
  • For antenna use a 50mm long insulated copper wire.
  • IC TDA 7000 can withstand up to 10 V supply voltage.But I recommend 6V.
  • Use an 8 Ohm speaker or Headphone at the audio output.

We have more Radio Circuits with us, which you may like to read:

1. AM Receiver Circuit

2. Low Cost AM Radio

3. FM Transmitter using UPC1651

4. Simple Radio Circuit

5. Antenna Tuner Circuit

Show Comments

87 thoughts on “Single Chip FM Radio circuit

  1. daniel

    hi, i am trying to build this circuit and cant find the bb105.. could you please send me a link of a picture? thx

    Reply
  2. sanjay

    Hello iam from Acharya ITI, Bangalore we required some of the receiver for our student to their project work they are

    IC based FM receiver, IC based Am receiver, IC based FM transmitter.
    pls reply

    Regards
    sanjay

    Reply
  3. vishal

    Sir want do a fm reciver circuit . I seen a lot of circuit based on thing but in all circuit I does not seen tuing circuit diagram in that circuit diagrams I means that to chang frequency in fm reciver we use tuing circuit
    So, sir plz send me nice & simple circuit diagram of fm reciver which has internaly having tuning circuit….

    Reply
  4. esa janger

    avokelan runko pysty. 2.5nH- 35nH 2 kierrosta 0.6 emali lanka leveys noin 2mm. halkaisija 8mm feriitti sydän pituus 10mm “kierteet” kanava alueen säätö. (BB109a) toimii kohtalaisesti. huonot puolet on se “vihellys” jos jännite suuri 6-9v voi myös koteloida kerrostaa alumiinivoliolla esim 4-8 kerrosta ja liimata yhteen ja sovittaa valmiin kelan päälle “kuin hattu” yläpuolikelasta näkyviin. on viisasta että jätät kelan solenoidiin muutaman millin raon ympäriinsä. eristä juotetut päät esim. “pikaliimalla” ettei tule oikosulkua ns hatusta. kun näin tiputa ylä kautta liimaa “hattuun” ja odota. kun on kuivunut kokeile jos ei mitään muuta kuin kohinaa, “hattu” otaa kelan käämin johonkin juotokseen. kannattaa asentaa varactori diodi lähelle kelaa lyhyillä lankalla. kannattaa myös käyttää kuorimaadoitettua johta + johtimissa sekä audio johdoissa. itse käytn virta lähteenä 2×4,5 paristoa yht. 9v jos ei onnistu niin kolmas kerta toden sanoo

    Reply
  5. Rex

    Seetharaman please give us fm receiver circuit using CD2003, or CSC2003P, because i cannot find ic TDA7000 in the market

    Reply
  6. greeshma

    should we use PCB board or bread board for the connections? how many days are required for the completion of this project? can an individual perform it as the first project?

    Reply
    • Seetharaman

      Hi Greeshma you have to use the PCB shown in the application datasheet of the manufacturer. If you have all components on hand with good solering iron and lead you can finish the project in 4 to 5 hrs(if you are good at soldering) If you are a beginner use only discrete component projects using simple transistors before starting with multi-pin ICs.

      Reply
  7. mohanapriya

    sir im ece second year student studying in kec. i want an interesting and useul mini project title at less cost. i have to submitt my project b4 this month so help me sir…….

    Reply
    • Seetharaman

      Yes Joey you can use Sony CXA1619BS it is a very good chip and freely available in the spare market. Use the recommended PCB shown in Sony application datasheet.

      Reply
  8. snehal

    please give me fm receiver circuit with ic which can easily available in any market, &with sony cxa 1619 bs.please help me within 12 hrs

    Reply
  9. usman umer

    I AM doing experiment form my childhood i have interest in automatic machines , transmitter and other circuits lm 741,lm555 timer,hcf4017 ,lm 3914 ic is very good for hobby

    Reply
  10. Franz

    Hi there !

    For anyone who still searches the TDA7000: it isn´t obsolete!
    Reichelt Elektronik ( http://www.reichelt.de ) sitll sales it, for
    an budget price 1,95 Euros. There is also the common known
    TCA440 for sale, around 10 Euros.

    Reply
  11. Rohit

    Hello Seetharaman,

    I have heard the IC CXA1619BS (Sony)is a very good chip for FM radio circuits, is it possible to have a circuit around this IC, it is suitable for about 14 volts, hence with this circuit it can always be fitted in a car.

    regards

    Reply
  12. HERU

    TRIMAKASIH TELAH BANYAK MEMBERIKAN PENGETAHUAN PADA SAYA SEMOGA BLOG INI TIDAK BOSA BOSAANYA MEMEBRIKAN PENGETAHUNA UNTUK KEMASLAHATAN UMAT MANUSIA

    Reply
  13. Asif Nadeem

    commercial radios start from 87.5Mhz to 108Mhz. how do i improve this design to get to that range? use bigger value of variable capacitor?

    Reply
  14. Sc petit

    The sony 1c u toked of has more dan 30pins n dis pins are stacked 2geda…cant even fit in a PCB…you knw of any Fm schematic using dis sony cx1916bs..
    THE tda 7000 can power a 8ohms speaker,i used Lm386l audio amp 2 do d amplification,unfortunating yet tune in2 a station,where is d prob 4m?,4m d varicap diode,or d coil? But i can hear d rushing noise just as every normal radio, pls i nid help?

    Reply
  15. Roomi

    I love electronics,in my childhood i was make little electronic project.after see this website i remember my child hood.
    Thank you admin.

    Reply
  16. seetharaman

    Hi Dayal and Sunil the IC is very rare now. instead you can use Sony CXA1619BS chip which is very common, economical and very good. works down to 2.4volt. you can refer my earlier communication on this on 18th March.

    Reply
  17. dayal

    this circuit is good enough but i also see some chinies circuits which uses 3 volt power supply for the fm receiver circuits.
    so i am requesting you all to please search this type of circuit which is energy efficient.

    Reply
  18. aljhon (real name)

    my priority is the pcb layout…can you give me a sample…regarding the tda7000 circuit above…

    Reply
  19. Jack

    Can this chip with a few external components btpass the FM demodulator and demodulate an AM or CW or DSB/USB/LSB Signal?? Seems like there is an output pin where the IF signal is avAilable Pin 12 (i.f. filter) or 16 (i.f. limiter)of this chip.

    I want to use this for Aircraft frequencies 110-137mhz which broadcast AM only.

    Reply
  20. Zkr

    Unfortunatelly, TDA7000 is obsolete and hard to find. There was one schematic with TDA7000 and TDA7052 – perfect little radio.
    Someone mentioned CXA1619, which is even more obsolete.

    Do anyone know any new circuit ?

    Reply
  21. Amitesh

    Hi friends any one can give circuits regarding mobile phone. As iam student of electronics and iam very much interested in mobile and radio circuit making i want some mobile circuits. Plz help me to do some projects on mobile communication. I hope that all of you help me.
    Regards,
    AMITESH

    Reply
  22. Santy

    Guys I want to build a FM transmitter whose input is from any USB device like Flsh Drive(Pen drive) OR MMC Card reader.
    It should play MP3’s stored in the pen drive……
    Any kind of help will do…

    Reply
  23. AMIN_OD5SR CHIDIAC

    THANK YOU VERY MUCH about TDA700 circuit with varicap tunning… I will make it… but about the varicap:
    is there another number can use it?
    exp. mv2009, bb109,…etc
    thank you again, good luck for all

    AMIN_OD5SR MUHIEDDINE CHIDIAC
    BEIRUT – LEBANON

    Reply
  24. HAMID LATEEF

    Please send to me some circuits diagram for students and bigginer,or do it-yourself circuit,literatures,brochure,catalogs and servives to the address below.

    HAMID LATEEF
    HALOTECH ELECTRO
    54 OKEBOLA STREET
    PO BOX 1769
    ADO EKITI
    EKITI STATE
    23401
    NIGERIA.

    THANK YOU

    Reply
  25. asim

    hi,i need a circuit equivalent to an antenna so that i don’t have to use an antenna in an fm transmitter.thanks,waiting very eagerly!!!

    Reply
  26. djbuti

    hey man there is a problem with de potentiometer how is posible that the potentiometer is conected with the possitive and the ground of the source voltage?

    author: please take a close look.A POT as high as 100K is used here.it is the fixed ends of the POT that are connected between positive and ground.At any condition the resistance between positive and ground will be 100K.This is almost equal to an open circuit.There is no chance of a short.

    ****(the problem comes when we connect the slider and one end of the POT across the power supply.When the slider is at low resistance position ,then there will be a short)****

    Reply
  27. cool386

    Audio output will not drive headphones or speakers as stated. Further amplification is required as the TDA7000 has an output of only 75mVrms into the 22K load. The supply needs to regulated where varicap tuning is used.

    Reply
  28. adrian

    comment:
    ok,but vcc max 2.5 vDC !!!!
    6 VDC burn out man….

    Reply:
    I don’t find any problem in connecting 6V supply to TDA 7000.The normal supply range of TDA 7000 is 2.7 to 10 Volts and the limiting value is 12V. So there is absolutely no problem in connecting 6V supply to the IC.For further proof you may please refer the datasheet of TDA 7400.Any way go ahead with the circuit.Thanks for the comment

    Reply

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