Gigabeat Dock.

[toffe]

It seems to be a good component, doesn't need a lot of external component.
We just have to figure out where to connect everything.

[Mad Cow]

Having SPDIF with the stock dock would be amazing. I don't really know much about this stuff though. Is it theoretically possible to wire it up using the I2C and I2S signals available to the dock connector?

[Chronon]

I think I2S is sufficient for SPDIF.  But I'll defer to those with actual experience in this matter.

[Davide-NYC]

Does your ADC use an optical/toslink connection or coax?

I think a good start for this would be the schematics on page 64 of the WM8804 datasheet, what do you guys think?

Optical. But having both would be best.

Looking at these schematics gets me (personally) nowhere. There are simply too many assumptions I'd have to make. I have repaired a few pieces of analog gear, but not much in terms of digital. And designing anything like this is totally out of the question for me.  

Someone that has the knowledge could send me a prototype schematic (complete) and I'd do my very best to try to solder it all together and test it.

Cheers, D.  

[Sandman333]

I am in the process of making a simple dock for Gigabeat usage in the car.  I purchased an e800 sync cable off of a seller on ebay for $0.99+$7.49 and the connector fits very nicely.  

Features I plan on making:
-Cigarette lighter power
-Keep gigabeat charged
-Remote control
-Line out to sound system
-Integrated FM transmitter?

The bulk of the unit will be at the power plug end, with the Gigabeat attached to a longish cable tucked away somewhere.  

The only thing I am not sure about is the remote.  I like the functionality of the stock remote, is the same pin that the remote normally uses present on the dock connector?

Also, will the line-out pins (5,6) have enough juice to run a cheap FM transmitter?

[toffe]

The only thing I am not sure about is the remote.  I like the functionality of the stock remote, is the same pin that the remote normally uses present on the dock connector?

For the remote, you need an analog input, there are 2 available on the connector but you will have to make a special build of rockbox.

Also, will the line-out pins (5,6) have enough juice to run a cheap FM transmitter?

I don't think there is any problem to connect a fm transmitter on the line output, you can try it using the actual dock .

[Sandman333]

Thanks, I think I may go a simpler route now though.  I will purchase an ipod car dock with most of the features I want, mod in the gigabeat connector and be done with it.  

http://www.dealextreme.com/details.dx/sku.6031
http://www.dealextreme.com/details.dx/sku.6073

With either of these, the gigabeat will be in front of me so I can just use the buttons without trying to make a remote.  
If I am really lucky, the separate headphone jack input will be directly connected to the line-in on the ipod connector.  If so, a cable to the car's audio input would accomplish that goal.  
I hope it won't be in the way of my gearshift lever.  

[gorman]

Hi Sandman333, any updates on your project? I'm really interested in what you are trying to do.

[Sandman333]

I have the dock and gigabeat cable, but my soldering iron is at home (I'm at university).  On the 16th or 17th it should be done.  

I bought the white one, it has an aux in, USB out (for power), and the ipod cable.  I am going to tap into the power from the USB port and the audio in from the headphone jack.  This also leaves options so if I take this to a different car or head unit with an aux in, I can just plug it into the headphone jack on the dock.  Later this week I may update with a wiring diagram.  

I will be leaving the ipod connector in case any friends would rather listen to their tunes.  Also, I may wire up the USB port to the USB host on the gigabeat in case the capability is ever added in rockbox.  

[toffe]

II found a connector for the gigabeat S
See the picture here :
http://www.rockbox.org/twiki/bin/view/Main/GigabeatCustomdock

The price, if I can buy 50 is 4.2$ plus shipping (the normal price is 5.95$ plus 5$ shipping

I think I can make the price 6$ including shipping for the US

Let me know
cmdnicolas at gmail dot com