matth Posted January 6, 2016 Share Posted January 6, 2016 Hi Clay, AKM announce their flagship DAC chip, the AK4497 today at CES 2016. If I understand correctly a high quality SRC like the AK4137 is built-in. ATB for 2016. Matt Link to comment Share on other sites More sharing options...
Gieseler Audio Posted January 6, 2016 Author Share Posted January 6, 2016 Hi Matt, Wow - should be a awesome combination. I was going to do a prototype board using the AK4137 but I think I will just wait for the new combo unit - with the DAC & SRC in the same chip digital signal lines will be very short & way less board populating for me. The AK4137 has a good bypass feature too so in that mode it should very transparent when say feeding in DSD 256. I will definately get a sample order in today - can't wait. I might do a USB only version DAC as well so I2S lines will very short & wiring minimal. 5 Link to comment Share on other sites More sharing options...
matth Posted January 6, 2016 Share Posted January 6, 2016 Hi Matt, Wow - should be a awesome combination. I was going to do a prototype board using the AK4137 but I think I will just wait for the new combo unit - with the DAC & SRC in the same chip digital signal lines will be very short & way less board populating for me. The AK4137 has a good bypass feature too so in that mode it should very transparent when say feeding in DSD 256. I will definately get a sample order in today - can't wait. I might do a USB only version DAC as well so I2S lines will very short & wiring minimal. Hi Clay, I found the data sheet in japanese/english: http://www.akm.com/akm/jp/file/datasheet/AK4497EQ.pdf It does support DSD512, wow, and there is a direct path for DSD like AK4490. I like your plan to do a USB only version. Matt 1 Link to comment Share on other sites More sharing options...
Gieseler Audio Posted January 6, 2016 Author Share Posted January 6, 2016 Thanks Matt Octo rate DSD - serious stuff indeed! 64 pin LQFP package - serious soldering too! 1 Link to comment Share on other sites More sharing options...
matth Posted January 6, 2016 Share Posted January 6, 2016 Thanks Matt Octo rate DSD - serious stuff indeed! 64 pin LQFP package - serious soldering too! Yes, but less soldering than TWO chips! 1 Link to comment Share on other sites More sharing options...
matth Posted January 7, 2016 Share Posted January 7, 2016 The english datasheet for AK4497 is published on the AKM homepage now. Matt Link to comment Share on other sites More sharing options...
Gieseler Audio Posted January 12, 2016 Author Share Posted January 12, 2016 (edited) I have been in touch with AKM regarding samples of the AK4497. They are going to send me some but said they will not be available until the second or third quarter this year. However the AK4137 is available so I will have some of them shortly. Edited January 12, 2016 by Gieseler Audio 4 Link to comment Share on other sites More sharing options...
Suopermanni Posted January 13, 2016 Share Posted January 13, 2016 I'd be interested in a Klein DAC with a AK4497. Assuming it's doable. 1 Link to comment Share on other sites More sharing options...
matth Posted January 13, 2016 Share Posted January 13, 2016 I'd be interested in a Klein DAC with a AK4497. Assuming it's doable. +1 For me USB (or Ethernet) only. Matt Link to comment Share on other sites More sharing options...
matth Posted January 13, 2016 Share Posted January 13, 2016 I have been in touch with AKM regarding samples of the AK4497. They are going to send me some but said they will not be available until the second or third quarter this year. However the AK4137 is available so I will have some of them shortly. It would be nice to check the AK4137 with AK4490 first and depending on the results to go later for an AK4137/AK4497 combo or AK4497 alone. Matt Link to comment Share on other sites More sharing options...
Gieseler Audio Posted January 13, 2016 Author Share Posted January 13, 2016 My thoughts exactly Matt so that is probably what I will do. I will definately produce a DAC using the AK4497 but it looks proper production won't start until the end of the year. 1 Link to comment Share on other sites More sharing options...
matth Posted January 13, 2016 Share Posted January 13, 2016 My thoughts exactly Matt so that is probably what I will do. I will definately produce a DAC using the AK4497 but it looks proper production won't start until the end of the year. Thanks Clay, I think the AK4497 will be worth the wait. Matt 1 Link to comment Share on other sites More sharing options...
matth Posted January 28, 2016 Share Posted January 28, 2016 Hi Clay, I have a question regarding the power supply of the USB section of the DAC. I am sure it is adressed elsewhere, but I can not find it at the moment. Does the Klein DAC need the 5V from the USB cable or is the USB section powered by the DAC PS? Thanks. Matt Link to comment Share on other sites More sharing options...
pete_mac Posted January 28, 2016 Share Posted January 28, 2016 Hi Clay, I have a question regarding the power supply of the USB section of the DAC. I am sure it is adressed elsewhere, but I can not find it at the moment. Does the Klein DAC need the 5V from the USB cable or is the USB section powered by the DAC PS? Thanks. Matt She's powered by a dedicated supply within the DAC itself - the Amanero doesn't receive +5V DC from the source to which it is connected 3 Link to comment Share on other sites More sharing options...
Gieseler Audio Posted January 29, 2016 Author Share Posted January 29, 2016 Thanks Pete - spot on! Link to comment Share on other sites More sharing options...
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