DIY FM Tuner challenge

cadmaniac · 31st December 2003, 04:37 PM

I'd like to monkey-see-monkey-do a FM tuner, built mostly with free samples from TI. Sound like a fun design project to anyone?

crown300 · 31st December 2003, 05:33 PM

Did you have any specific parts/combos in mind?

cadmaniac · 31st December 2003, 06:11 PM

I just clicked my way through a block diagram (which I can't find again) at TI.COM, and ordered these recommended & available parts:

ADS807E, MSP430F1101AIDW, PCM1716E, THS3001CD, TMS320VC5402GGU100, TPS5602IDBT, TRF6900APT

I don't know which are actually appropriate (or much else; hopin' you can tell me). The price sure is right. TI ships 'em overnight, free (US). With a few more miscellaneous parts, and a small enclosure...

Crossovers & Amps abound online (former is complete; latter in-progress). A decent FM tuner design would be a welcome step toward a completely DIYed system.

Thanks,
Steve

elizard · 31st December 2003, 06:28 PM

Is this perhaps what you were talking about?

http://focus.ti.com/docs/apps/catalo...jhtml?bdId=576

cadmaniac · 31st December 2003, 07:41 PM

Yeah; That's the one! The 'Digital' in the title threw me off. I guess it receives regular FM signals, converts to digital & back to analog?

With a wall-wart in the back & LED module on the front...??

elizard · 31st December 2003, 07:52 PM

Quote:

Originally posted by cadmaniac
Yeah; That's the one! The 'Digital' in the title threw me off. I guess it receives regular FM signals, converts to digital & back to analog?

With a wall-wart in the back & LED module on the front...??

No idea, i just did a quick search on ti

mercator · 31st December 2003, 07:59 PM

The referenced site lists the reciever component as:

'The TRF6900A single-chip solution is an integrated circuit intended for use as a low cost FSK transceiver to establish a frequency-agile, half-duplex, bidirectional RF link.'

Looks like a design for a handheld radio. Might work for a home broadcast solution but I don't think it will work for regular fm radio reception.

Happy New Year

Dave

cadmaniac · 31st December 2003, 08:20 PM

Dammit; I KNEW I misunderstood something important.

OK, Folks: Schematics and/or parts recommendations heartily welcomed.

crown300 · 31st December 2003, 09:41 PM

this looks interesting:
http://www.radioscape.com/Products/D...it/default.asp

cadmaniac · 31st December 2003, 11:30 PM

VERY interesting; indeed. I just emailed 'em about its availability (single unit for ordinary human). Seems to be a massive-purchase-OEM kinda thing.

31st December 2003, 04:37 PM	#1
cadmaniac diyAudio Member Join Date: Nov 2003 Location: Boston, MA	DIY FM Tuner challenge I'd like to monkey-see-monkey-do a FM tuner, built mostly with free samples from TI. Sound like a fun design project to anyone?

31st December 2003, 07:59 PM	#7
mercator diyAudio Member Join Date: Feb 2003 Location: Calgary	i don't think so, steve The referenced site lists the reciever component as: 'The TRF6900A single-chip solution is an integrated circuit intended for use as a low cost FSK transceiver to establish a frequency-agile, half-duplex, bidirectional RF link.' Looks like a design for a handheld radio. Might work for a home broadcast solution but I don't think it will work for regular fm radio reception. Happy New Year Dave

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31st December 2003, 05:33 PM	#2
crown300 diyAudio Member Join Date: Oct 2002 Location: pittsboro, NC	Did you have any specific parts/combos in mind?

31st December 2003, 06:11 PM	#3
cadmaniac diyAudio Member Join Date: Nov 2003 Location: Boston, MA	I just clicked my way through a block diagram (which I can't find again) at TI.COM, and ordered these recommended & available parts: ADS807E, MSP430F1101AIDW, PCM1716E, THS3001CD, TMS320VC5402GGU100, TPS5602IDBT, TRF6900APT I don't know which are actually appropriate (or much else; hopin' you can tell me). The price sure is right. TI ships 'em overnight, free (US). With a few more miscellaneous parts, and a small enclosure... Crossovers & Amps abound online (former is complete; latter in-progress). A decent FM tuner design would be a welcome step toward a completely DIYed system. Thanks, Steve

31st December 2003, 06:28 PM	#4
elizard diyAudio Member Join Date: Mar 2003 Location: Winnipeg, MB	Is this perhaps what you were talking about? http://focus.ti.com/docs/apps/catalo...jhtml?bdId=576

31st December 2003, 07:41 PM	#5
cadmaniac diyAudio Member Join Date: Nov 2003 Location: Boston, MA	Yeah; That's the one! The 'Digital' in the title threw me off. I guess it receives regular FM signals, converts to digital & back to analog? With a wall-wart in the back & LED module on the front...??

31st December 2003, 08:20 PM	#8
cadmaniac diyAudio Member Join Date: Nov 2003 Location: Boston, MA	Dammit; I KNEW I misunderstood something important. OK, Folks: Schematics and/or parts recommendations heartily welcomed.

31st December 2003, 09:41 PM	#9
crown300 diyAudio Member Join Date: Oct 2002 Location: pittsboro, NC	this looks interesting: http://www.radioscape.com/Products/D...it/default.asp

31st December 2003, 11:30 PM	#10
cadmaniac diyAudio Member Join Date: Nov 2003 Location: Boston, MA	VERY interesting; indeed. I just emailed 'em about its availability (single unit for ordinary human). Seems to be a massive-purchase-OEM kinda thing.