BA datasheet, BA circuit, BA data sheet: ROHM – Fm Stereo Transmitter,alldatasheet, datasheet, Datasheet search site for Electronic. Page 4. Page 5. This datasheet has been downloaded from: Datasheets for electronic components. Part, BA Category, Communication => Freq/Signal Converters/Generators. Description, FM Stereo Transmitter. Company, ROHM Electronics. Datasheet.

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I could always tell between my Stereo signal and the pro signals next to it, datasgeet I could not tell exactly why. But horrors, I put in only one channel of Audio and ground the other channel’s input.

Can you send me. Your email address will not be published. What is left in and right in. I found that the stuff that one channel was putting into the other channel was low level but really distorted bad. Everything you need is provided in the kit, including a neat battery holder. These harmonics would fall into the higher part of the MPX signal, deceiving the receiver into feeling that there was extraneous content in the original Audio channels.

That’s not going to sound pleasant at all!!

ROHM – datasheet pdf

The harmonics generated are harmonics, ie still slightly pleasing to the ear. I had to put my equaliser’s bass buttons up a bit. Page started on 19 July Previous post Next post. It was very slight but it was always there. The Third Harmonic will be at 30 KHz. Still the chip was fantastic in that it allowed you to transmit some kind of Stereo at the real low end.


Cana Kit claim mtr range in the open. I was expecting a low level of signal to ooze through to the other channel, but not so distorted!! Sound quality did improve a bit by reducing Modulation levels. D Bass response was acceptable, but a bit lacking. That’s not as easy as it seems, you can write a book on Audio filters.

I need a BA IC. The steeper the filter, the harder it gets to design them without other problems showing up. When you slightly overdrive a Mono signal, you get a slightly distorted output. The BA is gone, long live the BA!! When you overdrive an MPX circuit, you are in for trouble big time. Not noticeable when you play rock, but when I played the Bass drum track, after each drum beat, the high frequency note would ring and then stabilise a second later.

Radio Transmitters Previous post Next post You may also like: Frednand Start your learning by trying out simple circuits like — lighting an LED. Is a ready-coil available in market?

You may also like: C I ran a 20HzKHz sine wave sweep signal through. There is enough place to work around easily. Tuning was easy, The signal moved around by only 25 KHz initially till Thermal equilibrium was reached. I tried different antenna and found that could shift the operating frequency by KHz.

I really wonder if this slight high frequency note was caused by lack of a double sided board and large datasgeet areas? A The CK was much noisier to begin with. The Documentation describes how to make the kit very well, but does not mention any technical facts at all. Stereo B1404 do need Limiters because the slightest clipping gives rise to distortion that is not harmonic. The Decoder in the receiver will erroneously construe this as if there was an 8KHz signal originally present in the Audio.


It had a noticeable hiss making it sound like an old cassette player playing an even older cassette.

Cana Kit CK ( BA based Stereo FM Transmitter)

Hi Nin you can use series LC tuned circuit between Pins 5 and 6. Composite stereo signal is created by the stereo modulator circuit using the 38kHz quartz controlled frequency. Can it be possible to make a radio mp3 broadcast a long distance without buying an external boaster?

Network C9,C10, R4,R5 improves the channel bx1404. B Channel separation is not so good. There were mailing lists and ftp sites arguing about the pros and cons of Datashert kits. However, what I liked best about the BA was the amount of excitement it created among the hobbyists.

Left in and right in are audio inputs, of course. Inductor L1 and capacitor C5 is used datashwet set the oscillator frequency.

However the PCB is single sided and does not have large ground areas. Please give me the address. The PCB is very good quality and so are the components.

BA1404 Datasheet PDF

The kit took me about an hour to make. The FM Stereo rules say that the Pilot should be a sine wave, not square as square wave would have harmonics. I have a problem with this coil.

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