Re: FM radio reception on neo/openmoko and some other questions

2007-11-18 Thread Joshua Layne
somehow I missed this entirely (although I know I read it) I apologize for jumping threads and starting a new topic - it wasn't even a week ago j. Doug Sutherland wrote: Georg wrote: no only in terms of speakerphone, also the navigational software (as far as there'll be one) may be

Re: FM radio reception on neo/openmoko and some other questions

2007-11-11 Thread Doug Sutherland
Georg wrote: no only in terms of speakerphone, also the navigational software (as far as there'll be one) may be connected through it.. There are a lot of possible ways to use that extension and I personally think that it's a very useful additional feature . Speaking of navigation, this is

Re: FM radio reception on neo/openmoko and some other questions

2007-11-10 Thread Georg Michelitsch
Jeff Andros wrote: On 11/9/07, *Georg Michelitsch* [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: snip I'm interested in a FM transmitter in order to for example listen to my music on my car's radio. /snip This could also enable some really cool speakerphone

Re: FM radio reception on neo/openmoko and some other questions

2007-11-10 Thread Doug Sutherland
Georg wrote: no only in terms of speakerphone, also the navigational software (as far as there'll be one) may be connected through it.. There are a lot of possible ways to use that extension and I personally think that it's a very useful additional feature . The supplier where I usually

FM radio reception on neo/openmoko and some other questions

2007-11-09 Thread rakshat hooja
1) Are there any working hacks for getting FM radio reception on the neo 1973? Even the $35 (total for the unlocked phone that will work with any network) Nokia phones have FM reception in india. This is a must have option for the Neo to sell in India. Most phones use the earplug cable assembly as

Re: FM radio reception on neo/openmoko and some other questions

2007-11-09 Thread Doug Sutherland
Silicon Labs SI4700 and SI4701 are entire FM tuners on a single chip, and they are tiny. I have their USB FM Radio and I use it every day on my PC, and I believe the same chip is in my Sony Ericsson phone. This is the one that uses the earphone wire as antenna, although it can be separate, as is

Re: FM radio reception on neo/openmoko and some other questions

2007-11-09 Thread Mikko J Rauhala
On pe, 2007-11-09 at 16:35 +0530, rakshat hooja wrote: 1) Are there any working hacks for getting FM radio reception on the neo 1973? Even the $35 (total for the unlocked phone that will work with any network) Nokia phones have FM reception in india. This is a must have option for the Neo to

Re: FM radio reception on neo/openmoko and some other questions

2007-11-09 Thread Daniel Gustafsson
On Fri, 9 Nov 2007 06:46:16 -0500 Doug Sutherland [EMAIL PROTECTED] wrote: Silicon Labs SI4700 and SI4701 are entire FM tuners on a single chip, and they are tiny. I have their USB FM Radio and I use it every day on my PC, and I believe the same chip is in my Sony Ericsson phone. This is the

Re: FM radio reception on neo/openmoko and some other questions

2007-11-09 Thread Mike Hodson
On Nov 9, 2007 6:10 AM, Mike Hodson [EMAIL PROTECTED] wrote: He is talking about receiver chips, like those used in SonyEricsson/Nokia cellphones, to provide the phone owner with FM radio reception. Not to transmit say, music, to a radio. Or i also could have missed the final sentence in his

Re: FM radio reception on neo/openmoko and some other questions

2007-11-09 Thread Doug Sutherland
He is talking about receiver chips, like those used in SonyEricsson/Nokia cellphones, to provide the phone owner with FM radio reception. Not to transmit say, music, to a radio. Well I mentioned both, and they are separate chips. There is plain FM, FM with RDS/RBDS, AM/FM and also FM

Re: FM radio reception on neo/openmoko and some other questions

2007-11-09 Thread Georg Michelitsch
Doug Sutherland wrote: I am planning to make some PCB boards with the SI4701 and minimal parts on them in the future, will be sold on ebay (I have surface mount reflow oven). See the Silicon Labs parts here:

Re: FM radio reception on neo/openmoko and some other questions

2007-11-09 Thread Georg Michelitsch
Daniel Gustafsson wrote: Implementing an FM sender would however make the Neo hard to sell on markets where personal FM transmitters are illegal (however weak the signal is) such as Sweden. At least it was still illegal when I was living there. cheers ./daniel ahm - we're talking

Re: FM radio reception on neo/openmoko and some other questions

2007-11-09 Thread Georg Michelitsch
Doug Sutherland wrote: Georg, My original plan was to design a generic add-on board for embedded single board computers that includes an audio codec, FM tuner, and optional text-to-speech. I still have that plan but may make several variants on this, I have lots of interest in mobile audio

Re: FM radio reception on neo/openmoko and some other questions

2007-11-09 Thread Doug Sutherland
Georg, The amazing thing about these Silicon Labs parts is that they require almost no external components. For example the SI470x FM tuners require a crystal and regulator, that is all, they can use headphone cable as antenna (as is done in most phones now), and they have stereo analog output

Re: FM radio reception on neo/openmoko and some other questions

2007-11-09 Thread Georg Michelitsch
Doug Sutherland wrote: Georg, The amazing thing about these Silicon Labs parts is that they require almost no external components. For example the SI470x FM tuners require a crystal and regulator, that is all, they can use headphone cable as antenna (as is done in most phones now), and they

Re: FM radio reception on neo/openmoko and some other questions

2007-11-09 Thread Jeff Andros
On 11/9/07, Georg Michelitsch [EMAIL PROTECTED] wrote: snip I'm interested in a FM transmitter in order to for example listen to my music on my car's radio. /snip This could also enable some really cool speakerphone abilities, as long as we can then filter the audio input to remove the echo

Re: FM radio reception on neo/openmoko and some other questions

2007-11-09 Thread Doug Sutherland
There is an interesting speaker phone codec made by cirrus logic http://www.cirrus.com/en/products/pro/detail/P1006.html They are in stock at digikey -- Doug___ OpenMoko community mailing list community@lists.openmoko.org