No AM or FM here; the BBB will provide all the audio data. > On Dec 1, 2014, at 16:46 , liyaoshi <[email protected]> wrote: > > If your radio mean FM and AM without DAB , i recommend TEF6657 > > If with DAB ,TEF7741 DIRANA2 is better choice ,and this is a very general > chip in audio CAR > > BTW , I had write a demo version TEF6657 audio driver , > > About the TLVAIC3104 , Its only have about 2w amplifier , > > for a 25x4 w amplifier , Your 5v2A power is not enough . > > 2014-12-02 6:18 GMT+08:00 Rick <[email protected]>: > > > On Nov 26, 2014, at 15:54 , [email protected] wrote: > > > > Hi Rick, > > > > I am hardware engineer too; Sounds like we are in the same boat:) > > > > I essentially want to build a "radio," so I'll be developing a cape with > > audio out and amplifier > > > > I would recommend you to have look at TLV320AIC3100 with class D 4ohm > > speaker driver. It saves you amplifier design for driving speakers and has > > stereo Headphone ports. Needless to say, with class D amplifier you get the > > lowest power consumption possible compared to class AB etc. > > If you need stereo speaker output consider TLV320AIC3110. > > Okay, good. I found that IC in my research, thought it might be useful. > > > (is I2S the same as your "I2c2"?) > > No, TI calls I2S, Inter IC Sound, McASP which is a four wire bus. I2C is > > Inter-Integrated Circuit and is a two wire bus. For codec you need both of > > them. You need I2C for programming the registers and I2S for transmission > > of voice. > > I realized after reading more that "i2c2" must've been the Sitara's I2C bus > #2, and that I2S support was provided by McASP. > > > Could I ask you additional questions as I get further into this? > > That's what forum is for. It is pretty simple. Just connect your I2C and > > I2S to micros I2C and McASP, do the procedure that I wrote above, and you > > are done. > > Awesome, thanks! > > > > Best regards, > > > > -Alex > > > > > > > > > > > > On Tuesday, November 25, 2014 4:01:29 PM UTC-8, Rick M wrote: > > > > > > On Thursday, November 13, 2014 5:46:32 PM UTC-8, [email protected] wrote: > > Hi, > > > > I am trying to design a cape with TLV320AIC3110 for Beaglebone black using > > I2c2 and Mcasp0. > > > > Alex, I, too am looking to develop an audio application using a BBB, but > > know very little about Linux audio (I'm a capable-enough hardware engineer, > > and have lots of software development experience on iOS/OS X and numerous > > small processors, bare-metal, but not a ton of Linux). I essentially want > > to build a "radio," so I'll be developing a cape with audio out and > > amplifier. Your choice of IC might be adequate, or I'll find some other I2S > > chip (is I2S the same as your "I2c2"?). My cape will also have some > > additional electronics for interfacing the rest of my "radio's" user > > interface. > > > > Could I ask you additional questions as I get further into this? > > > > Thanks! > > > > -- > > Rick > > > > -- > > For more options, visit http://beagleboard.org/discuss > > --- > > You received this message because you are subscribed to a topic in the > > Google Groups "BeagleBoard" group. > > To unsubscribe from this topic, visit > > https://groups.google.com/d/topic/beagleboard/8RU9ayMPBlc/unsubscribe. > > To unsubscribe from this group and all its topics, send an email to > > [email protected]. > > For more options, visit https://groups.google.com/d/optout. > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to a topic in the Google > Groups "BeagleBoard" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/beagleboard/8RU9ayMPBlc/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/d/optout.
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