That was a post, not a thread that needed a title.
His own forum rules state:
"relating to the hardware of devices and in many circumstances dealing with families of devices. "
Which my COMMENT was, but the power mad mods have to delete my comment. So they obviously don't care about hardware or my research, so **** that mod.
Chill...mods try to keep things orderly. If you feel you're treated unfairly, pm the mods and plead your case...it's never a good idea to publicly criticise staff (made up of volunteers) dedicated to our shared interests.
On topic, the FM stations are miserable here, full of annoying racket and ads...I'd never even consider listening to FM even if the SIII had an operable implementation.
I would say that they would need the resistors, and inductors inside the SoC module, and an antenna. And then some was to get the data out of the broadcom chip, and then can it handle FM while using bluetooth and WLAN? So I'm guessing based on the cost and module specs, they abandoned it. For the flagship i9300 international design they just threw in another chip. The respin US version they want to save money and the Wolfson and SiLabs volume and cost makes more sense to use the Qcom part and abandon an extra audio input. Also US cell companies go out of their way to disable FM radio even when it is "free". They would rather you pay for data or some crazy nonsense.
I'm sure you're right about 4705. 9300 schematic shows DOUT which is the digital out the 4701 doesn't have. I didn't even look at the parts list; previous service manuals didn't use the real part numbers so I figured it was useless again.
It's a shame Samsung didn't use the Digital out IMO. But this leads into the fact that they have a "settled design" for FM on the higher end Galaxy S/S2/S3/Note devices. The "settled design" uses a Silicon Labs si470x chip with analog output. I don't know if SL chips have better audio than Broadcom currently, but I suspect they did when the Galaxy S was designed at least (along with a high quality Wolfsson audio chip.)
Samsungs "settled design" for FM on lower end products always uses Broadcom combo chips, that also support BT and WiFi. FM piggy-backs on the BT core and is handled by the Broadcom proprietary BT/FM stack on stock ROMs.
it'd be nice to be able to change the headphone amplifier volume (as voodoo does). Does this information you guys found help in that area? It'd be nice to lower the analogue volume to reduce hiss and artifacts.
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