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

  1. #1
    Maximum Bitrate Seth's Avatar
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    Smile HU Quality AM/FM RDS/RBDS Radio with Features

    Hi guys

    This is the new thread of the radio project I started about a month ago (link here )

    Before I start going into details I'd like to thank publically Antimatter and Rando for their contribution and support on this project. Their ideas and thoughts made this device mature in design a lot faster and a lot better than what I could do by myself.

    Here we go .
    This device is using 2 ic's made by Philips meant to be used in new generation HU's. The ic's are :

    1) TEA6849H
    New In Car Entertainment car radio
    tuner IC with Precision Adjacent
    Channel Suppression
    (NICE-PACS)

    Webpage/Features/Datasheet here

    2)TEF6890H
    Car radio integrated signal
    processor, mixer and RDS demodulator.

    Webpage/Features/Datasheet here

    First of all I'll give you an idea what you can expect from this device.

    1) Near HU (or equal) reception quality.
    2) 4 channel audio out.
    3) 2 stereo audio inputs, 1 phone mono input and 1 Nav input with beep generator. All with source auto-select and soft-mute.
    4) 1 I2C connector for fast integration with the M10000 motherboard and options to convert to USB or RS232.
    5) 2 I2C connectors available for future expansion (already found compatible DAB modules, still searching for XM modules).
    6) HU style antenna connector for easy installation.
    7) 1 RDS data output header (TTL level signals) with RDS data, RDS clock, RDS quality streams available (will not be utilised in prototypes because we need to focus in reception during initial testing).
    8) Clemens 4 pole power connector (+5v,GND,GND,+12V) so you can use any available power cable from your PSU (this can be changed to a molex connector if required).

    Locating the required ic's has been quite a challenge for two reasons:

    1) Standard promotion politics on behalf of Philips not making widely available parts which are re-branded by other manufacturers/integrators like Alpine.

    2) Small quantities and low prices where always a problem when talking with suppliers.

    That was until I found a company in China (Beijing) who claimed they had the parts available and they were willing to sell in low quantities (10pcs minimum) and their prices are excellent. I thought it was too good to be true until I received the parts.

    The supplier is:

    KaiCongElectronTechCo.,Ltd
    RM510,Zhong Fa Electronic Building,132#
    ZhiChun Rd,Hai Dian District,BeiJing GD100086 China
    Tel : 86-10-82612701
    Fax : 86-10-62635146
    E-mail : [email protected]

    The sales rep I talk to is Chaobo Long ( Andy ).
    I would strongly advice not to contact Andy before we have a working prototype. The reasons are obvious...

    The prices are :

    TEF6890H $8.72/unit for 10pcs quantity
    TEA6849H $6.58/unit for 10pcs quantity

    Time for the pics now
    ( I must apologise in advance for the multiple posts but I don't have a way of hosting those images)

    Let's see:

    Image 1 (Package recieved)
    Attached Images Attached Images  

  2. #2
    Maximum Bitrate Seth's Avatar
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    Image 2 ( Both chips in bulk packaging)
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  3. #3
    Maximum Bitrate Seth's Avatar
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    Image 3 ( TEF6890H vs AA Battery )
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  4. #4
    Maximum Bitrate Seth's Avatar
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    Image 4 ( TEA6849H vs AA Battery )
    Attached Images Attached Images  

  5. #5
    Maximum Bitrate Seth's Avatar
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    Image 5 ( TEA6849H Pack )
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  6. #6
    Maximum Bitrate Seth's Avatar
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    Image 6 ( TEF6890H Pack )
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  7. #7
    Maximum Bitrate Seth's Avatar
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    Our next steps are:

    1) Finalize PCB design and perform "debbuging"
    2) Locate the best priced PCB printer and print some prototype PCB's
    3) Assemble and distribute prototypes to testers/software developers
    4) Testing,Testing,Testing
    5) Final release.


  8. #8
    Low Bitrate
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    I've actually done major research into prototyping and creating pcb, and I found the absolute best way is doing it yourself. What you do is get a photolithographic negative of the pcb layout, and a UV light table. Then you get the copper backed boards that are sensitive to UV light. In the end, I got the best boards ever. Extremely professional and small boards. What program are you using for the board layout?

  9. #9
    Raw Wave god_of_cpu's Avatar
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    So are you going to be selling this as a a final complete hardware product then... Will it ship with assembly required or as a completed plug and play device? Also do you have any US distributors lined up? Also what is the software API interface gonna be like, is it gonna work like a serial device similar to how the USB XM PCR works?
    StreetDeck.com Developer (I am Chuck)
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    The Official StreetDeck Forums have moved, please visit us at http://www.streetdeck.com/forum for official support for Streetdeck.

  10. #10
    See me in my wet t-shirt. stevieg's Avatar
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