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Thread: HU Quality AM/FM RDS/RBDS Radio with Features

  1. #221
    FLAC SFiorito's Avatar
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    actually, the Berkeley types would say you were taking advantage of cheap labor and call you an evil capitalist-pigdog and you should die.... in all seriousness, who cares where it's made (or assembled) as long as it works properly?

    flicklerx: no man, some of the hottest models are eastern european!!!

  2. #222
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    Ahhh, I'm very impressed with this project because I want a high quality radio tuner with RBDS. Seth and the rest of the guys, you are doing a great job. The microtune module, does it contain the TEA6849 from Philips? I'm trying to work with Philips and a Philips disributer to get the TEA6849 demo board. Hopefully all the documentation and the control software will come with it like some dev boards from ST; as Philips won't give me any infomation because I'm not a "car audio customer". I'm having major communication problems with Philips, and I'm tired of it. This IC seems to be one of the best tuners out there. I'll be extatic if I get the TEA6849 demo board.

  3. #223
    Newbie SPiTFirE's Avatar
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    I just began ordering parts for my CarPC and I was wondering how I was going to bring radio into the mix. I really hope this unit gets off the ground so I don't have to deal with any low quality equipment. Keep up the good work guys!

  4. #224
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    I'm super excited about this project. Seth, the PCB you made for the TEA6849, did you ever find parts or get it working? Digikey, Newark, Mouser, Avnet, Nuhorizons, and Arrow are all US suppliers. The hard to find diodes you couldn't find are obtainable from Philips via samples. I'm in good communication with a Philips distributer for samples, etc. Plus, inductors can probably be aquired from tokor or something as samples. If you have an extra PCB, could I buy it from you? Do you still have the cad files? I wanted to do a really good quality tuner with the TEA6849 but Philips wouldn't hear of it.

  5. #225
    Maximum Bitrate Seth's Avatar
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    Quote Originally Posted by emumanXM
    I'm super excited about this project. Seth, the PCB you made for the TEA6849, did you ever find parts or get it working? Digikey, Newark, Mouser, Avnet, Nuhorizons, and Arrow are all US suppliers. The hard to find diodes you couldn't find are obtainable from Philips via samples. I'm in good communication with a Philips distributer for samples, etc. Plus, inductors can probably be aquired from tokor or something as samples. If you have an extra PCB, could I buy it from you? Do you still have the cad files? I wanted to do a really good quality tuner with the TEA6849 but Philips wouldn't hear of it.
    Well microtune's module is based on the TEA6849H (which as you said is one hell of a tuner chip) so why re-invent the wheel? Besides it will be hard for the average DIYourselfer to obtain e.g. an AM PIN diode or an 4:6 audio transformer even as samples. I know Philips is a pita when you don't plan to buy thousands of units and quite possible Toko is too.
    We have only schematics of the tuner subsystem we designed. We could not produce a layout since we did not know the size and form of the missing components. If you are still interested I have 25 TEA6849H tuner chips in my hands which we won't use. PM me if you want them.

    Cheers


  6. #226
    Raw Wave rando's Avatar
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    Quote Originally Posted by Seth
    Well microtune's module is based on the TEA6849H
    Are you sure about that? My sleuthing indicates that it might be an ST based tuner IC but I never found anything concrete.

  7. #227
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    Seth,

    Come to think of it, you are 100% right. Most of the time it's really difficult to get RF parts. And since the microtune module is based on the TEA6849, it'll be just as good. I'll be getting two samples of the TEA6849, and hopefully a price on the demo board and required documentation and control software, so I won't need any from you, but thanks. I'd like to add AM stereo, stereo TV audio reception, weatherband reception as well as RDS decoding and an MPX output that can be connected to an SCA subcarrier decoder. I want to create an ultimate digital radio than can be used in the home and the car that can receive and decode everything there is in commercial broadcast radio transmission. I want AM stereo because my local oldies station broadcasts in stereo, I want RDS decoding because my local new rock station transmits RDS, I want stereo TV audio (2-13) to listen to TV broadcasts, I want weatherband because weatherband radios are quite handy. I plan to use a blue PLED display if I could ever get one. One might think I'm crazy, but I really want to design the only radio receiver you will ever need. Only drawback is that I have limited experience in RF design and uC or PIC assembly. I'm going to try to get one of the modules from microtune. What was that i2c program used in the video?

    rando, sony's digital radio tuner modules use an IC from ST Micro. My CDX-M620 head unit uses one. The module costs $80 from sony.

  8. #228
    Jesus Freak antimatter's Avatar
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    racemier you need to provide us with a public update
    -Jesus- King of Kings Lord of Lords

  9. #229
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    Hi !!

    You have got any news ?

    Really want a good FM Radio in Centrafuse

    Thanks to help us ;-)

  10. #230
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    Quote Originally Posted by antimatter
    racemier you need to provide us with a public update
    Yep I know, my plan is to record a mp3 while driving the car on friday or saturday.
    The module itself is still in the software fase. HW should be OK.
    In the mean time I have designed a new version which I hope to finish today.
    Based on the TEF series IC's of which I last week received samples from Philips.
    Then I can order 2 test PCB's, which will take 10 days and I hope by then the SW is completely finished. When the new one is approved and I know the number of people wanting one (completly mounted or partly mounted) then I can look into the possibility to deliver them with all the necessary info.

    Regards,
    Rogier
    Professionals built the Titanic, an amateur built the Ark.

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