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Ian asynchronous I2S and S/PDIF FIFO KIT group buy

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#2,061
Thanks Ian. I'm afraid that "tolerate" means switching at the wrong threshold level that would also introduce jitter. Plus Aqua specifically has been known to have problems with 3.3V I2s, so I would'n take this risk. I'm not an expert and so this may sound silly, but instead of the logic shifter chip, can an analog gain stage be used, like a fast opamp with a constant 1.5x gain?
 
#2,063
iancanada said:
Hi guys,

A lot of friends are still interested in my PCM board, as well as up coming multi-channel I2S/DSD FIFO KIT, the RPi isolator and many other gears.

I would ask you putting your ID and the items that your are interested in on to the list below. I'll send message to you once they are available.
Click to expand...
Ian KIT Interesting List 2016:

1. StuderB67: 2x I2StoPCM
2. hopkins:Ffo and Dual Clok kit
3. mk57:S/PDIF interface board
4. sckramer 2x RPi isolator boards
 
#2,064
iancanada said:
Hi guys,

A lot of friends are still interested in my PCM board, as well as up coming multi-channel I2S/DSD FIFO KIT, the RPi isolator and many other gears.

I would ask you putting your ID and the items that your are interested in on to the list below. I'll send message to you once they are available.

Ian KIT Interesting List 2016:

1. StuderB67: 2x I2StoPCM
2. hopkins:Ffo and Dual Clok kit
3. mk57:S/PDIF interface board
Click to expand...
5. MikeyFresh: 2x RPi Isolator
 
Last edited:
#2,065
safesphere said:
Thanks Ian. I'm afraid that "tolerate" means switching at the wrong threshold level that would also introduce jitter. Plus Aqua specifically has been known to have problems with 3.3V I2s, so I would'n take this risk. I'm not an expert and so this may sound silly, but instead of the logic shifter chip, can an analog gain stage be used, like a fast opamp with a constant 1.5x gain?
Click to expand...

Try this:

level shifting - Step up 3.3V to 5V for digital I/O - Electrical Engineering Stack Exchange

Ian
 
#2,067
Ian KIT Interesting List 2016:

1. StuderB67: 2x I2StoPCM
2. hopkins:Ffo and Dual Clok kit
3. mk57:S/PDIF interface board
4. sckramer 2x RPi isolator boards
5. MikeyFresh: 2x RPi Isolator
6. Greg Stewart 3x RPi isolator boards
7. Ben Mah: 1x RPi Isolator
 
#2,068
Ian KIT Interesting List 2016:

1. StuderB67: 2x I2StoPCM
2. hopkins:Ffo and Dual Clok kit
3. mk57:S/PDIF interface board
4. sckramer 2x RPi isolator boards
5. MikeyFresh: 2x RPi Isolator
6. Greg Stewart 3x RPi isolator boards
7. Ben Mah: 1x RPi Isolator
8 bigpandahk : I2S/DSD FIFO
 
#2,070
Ian KIT Interesting List 2016:

1. StuderB67: 2x I2StoPCM
2. hopkins:Ffo and Dual Clok kit
3. mk57:S/PDIF interface board
4. sckramer 2x RPi isolator boards
5. MikeyFresh: 2x RPi Isolator
6. Greg Stewart 3x RPi isolator boards
7. Ben Mah: 1x RPi Isolator
8. bigpandahk : I2S/DSD FIFO
9. brother c : 1x MC FIFO & MC XO, 1x Raspi/Odroid isolator
 
Last edited:
#2,071
Ian KIT Interesting List 2016:

1. StuderB67: 2x I2StoPCM
2. hopkins:Ffo and Dual Clok kit
3. mk57:S/PDIF interface board
4. sckramer 2x RPi isolator boards
5. MikeyFresh: 2x RPi Isolator
6. Greg Stewart 3x RPi isolator boards
7. Ben Mah: 1x RPi Isolator
8. bigpandahk : I2S/DSD FIFO
9. brother c : 1x MC FIFO & MC XO, 1x Raspi/Odroid isolator
10. ernesternest: 1x RPi isolator
 
#2,072
Ian KIT Interesting List 2016:

1. StuderB67: 2x I2StoPCM
2. hopkins:Ffo and Dual Clok kit
3. mk57:S/PDIF interface board
4. sckramer 2x RPi isolator boards
5. MikeyFresh: 2x RPi Isolator
6. Greg Stewart 3x RPi isolator boards
7. Ben Mah: 1x RPi Isolator
8. bigpandahk : I2S/DSD FIFO
9. brother c : 1x MC FIFO & MC XO, 1x Raspi/Odroid isolator
10. ernesternest: 1x RPi isolator
11. RollE2k: 1x RPI isolator
 
#2,074
Ian KIT Interesting List 2016:

1. StuderB67: 2x I2StoPCM
2. hopkins:Ffo and Dual Clok kit
3. mk57:S/PDIF interface board
4. sckramer 2x RPi isolator boards
5. MikeyFresh: 2x RPi Isolator
6. Greg Stewart 3x RPi isolator boards
7. Ben Mah: 1x RPi Isolator
8. bigpandahk : I2S/DSD FIFO
9. brother c : 1x MC FIFO & MC XO, 1x Raspi/Odroid isolator
10. ernesternest: 1x RPi isolator
11. RollE2k: 1x RPI isolator
12. tracer5: 1. Raspberry Pi /ODROID I2S/DSD isolator HAT
13/ diyaudnut: 1x MC FIFO & MC XO
 
#2,075
Ian, really RasperryPi, not BBB ? Did you have a chance to look into the twistedpear chronus/botic stuff I posted earlier ? The BBB should have the superior audio architectur and the software is there as well alreaady, what is missing is how to get your masterclock switchable back into the bbb (which has the input for a clock already) and instead of using chronus, using your fifo, which would be my preference....
 
#2,076
1. StuderB67: 2x I2StoPCM
2. hopkins:Ffo and Dual Clok kit
3. mk57:S/PDIF interface board
4. sckramer 2x RPi isolator boards
5. MikeyFresh: 2x RPi Isolator
6. Greg Stewart 3x RPi isolator boards
7. Ben Mah: 1x RPi Isolator
8. bigpandahk : I2S/DSD FIFO
9. brother c : 1x MC FIFO & MC XO, 1x Raspi/Odroid isolator
10. ernesternest: 1x RPi isolator
11. RollE2k: 1x RPI isolator
12. tracer5: 1. Raspberry Pi /ODROID I2S/DSD isolator HAT
13/ diyaudnut: 1x MC FIFO & MC XO
14. tsuntaro: 1x MC FIFO & MC XO
 
#2,077
Ian KIT Interesting List 2016:

1. StuderB67: 2x I2StoPCM
2. hopkins:Ffo and Dual Clok kit
3. mk57:S/PDIF interface board
4. sckramer 2x RPi isolator boards
5. MikeyFresh: 2x RPi Isolator
6. Greg Stewart 3x RPi isolator boards
7. Ben Mah: 1x RPi Isolator
8. bigpandahk : I2S/DSD FIFO
9. brother c : 1x MC FIFO & MC XO, 1x Raspi/Odroid isolator
10. ernesternest: 1x RPi isolator
11. RollE2k: 1x RPI isolator
12. tracer5: 1. Raspberry Pi /ODROID I2S/DSD isolator HAT
13/ diyaudnut: 1x MC FIFO & MC XO
14. tsuntaro: 1x MC FIFO & MC XO
15. minio: 1x RPI Isolator
 
#2,078
1. StuderB67: 2x I2StoPCM
2. hopkins:Ffo and Dual Clok kit
3. mk57:S/PDIF interface board
4. sckramer 2x RPi isolator boards
5. MikeyFresh: 2x RPi Isolator
6. Greg Stewart 3x RPi isolator boards
7. Ben Mah: 1x RPi Isolator
8. bigpandahk : I2S/DSD FIFO
9. brother c : 1x MC FIFO & MC XO, 1x Raspi/Odroid isolator
10. ernesternest: 1x RPi isolator
11. RollE2k: 1x RPI isolator
12. tracer5: 1. Raspberry Pi /ODROID I2S/DSD isolator HAT
13/ diyaudnut: 1x MC FIFO & MC XO
14. tsuntaro: 1x MC FIFO & MC XO
15. jonners: 2x RPi Isolators
 
#2,079
1. StuderB67: 2x I2StoPCM
2. hopkins:Ffo and Dual Clok kit
3. mk57:S/PDIF interface board
4. sckramer 2x RPi isolator boards
5. MikeyFresh: 2x RPi Isolator
6. Greg Stewart 3x RPi isolator boards
7. Ben Mah: 1x RPi Isolator
8. bigpandahk : I2S/DSD FIFO
9. brother c : 1x MC FIFO & MC XO, 1x Raspi/Odroid isolator
10. ernesternest: 1x RPi isolator
11. RollE2k: 1x RPI isolator
12. tracer5: 1. Raspberry Pi /ODROID I2S/DSD isolator HAT
13/ diyaudnut: 1x MC FIFO & MC XO
14. tsuntaro: 1x MC FIFO & MC XO
15. jonners: 2x RPi Isolators
16. Yatsushiro: 2x RPi Isolators
 
#2,080
1. StuderB67: 2x I2StoPCM
2. hopkins:Ffo and Dual Clok kit
3. mk57:S/PDIF interface board
4. sckramer 2x RPi isolator boards
5. MikeyFresh: 2x RPi Isolator
6. Greg Stewart 3x RPi isolator boards
7. Ben Mah: 1x RPi Isolator
8. bigpandahk : I2S/DSD FIFO
9. brother c : 1x MC FIFO & MC XO, 1x Raspi/Odroid isolator
10. ernesternest: 1x RPi isolator
11. RollE2k: 1x RPI isolator
12. tracer5: 1. Raspberry Pi /ODROID I2S/DSD isolator HAT
13/ diyaudnut: 1x MC FIFO & MC XO
14. tsuntaro: 1x MC FIFO & MC XO
15. jonners: 2x RPi Isolators
16. Yatsushiro: 2x RPi Isolators
17. vzs: 1x RPi Isolators
 
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