probably the best usb to i2s device

Anything to do with computer audio, hardware, software etc.
wushuliu
Posts: 180
Joined: Tue Oct 22, 2013 2:24 am

Re: probably the best usb to i2s device

Post by wushuliu »

Okay, the reclock wiring is still confusing the $#!+ out of me. No pictures I can find with detailed wiring exposed.

Took me some googling just to figure out the potato flip flop is dual split left/right side. What I need to know is what outputs on the diyinhk board correspond to the pins of the flip flop. So far all I have with any detail is this post from hifiduino:
I connect pin 1,4,14 to Vcc, pin 7 to GND, pin 2 to BCLK and pin 3 to oscillator. Are my wiring correct? I can’t get any output from the flip-flop!!
The connections are correct.
So I'm guessing it goes something like the attached?

Are the outputs 1Q and 1Qbar (5 and 6)? Do those go to the master clock? Am I using Bclk AND master clock inputs from the diyinhk?
Attachments
74hc74.jpg
74hc74.jpg (36.96 KiB) Viewed 1824 times
Eclipse W6520R/Satori TW29R MTM
Hifime Es9038Pro
3eaudio TPA3251
nige2000
Posts: 4253
Joined: Thu Feb 14, 2013 10:47 am
Location: meath

Re: probably the best usb to i2s device

Post by nige2000 »

wushuliu wrote:Okay, the reclock wiring is still confusing the $#!+ out of me. No pictures I can find with detailed wiring exposed.

Took me some googling just to figure out the potato flip flop is dual split left/right side. What I need to know is what outputs on the diyinhk board correspond to the pins of the flip flop. So far all I have with any detail is this post from hifiduino:
I connect pin 1,4,14 to Vcc, pin 7 to GND, pin 2 to BCLK and pin 3 to oscillator. Are my wiring correct? I can’t get any output from the flip-flop!!
The connections are correct.
So I'm guessing it goes something like the attached?

Are the outputs 1Q and 1Qbar (5 and 6)? Do those go to the master clock? Am I using Bclk AND master clock inputs from the diyinhk?
well unless your going to use the boutique potato logic 74 chips there may be little to no benefit of using this particular type of 74 logic not to mention you need two chips as each chip only has two channels
the pinout of a single 574 logic chip is far easier to implement http://www.mouser.ie/Semiconductors/Log ... 74&FS=True
sd card player, modded soekris dac, class a lifepo4 amp or gb class a/b amp, diy open baffle speakers based on project audio mundorf trio 10's
nige2000
Posts: 4253
Joined: Thu Feb 14, 2013 10:47 am
Location: meath

Re: probably the best usb to i2s device

Post by nige2000 »

just let check the chip out before you buy
sd card player, modded soekris dac, class a lifepo4 amp or gb class a/b amp, diy open baffle speakers based on project audio mundorf trio 10's
wushuliu
Posts: 180
Joined: Tue Oct 22, 2013 2:24 am

Re: probably the best usb to i2s device

Post by wushuliu »

hmm, the potato is the one I have...
Eclipse W6520R/Satori TW29R MTM
Hifime Es9038Pro
3eaudio TPA3251
nige2000
Posts: 4253
Joined: Thu Feb 14, 2013 10:47 am
Location: meath

Re: probably the best usb to i2s device

Post by nige2000 »

wushuliu wrote:hmm, the potato is the one I have...
Do you have two?
sd card player, modded soekris dac, class a lifepo4 amp or gb class a/b amp, diy open baffle speakers based on project audio mundorf trio 10's
wushuliu
Posts: 180
Joined: Tue Oct 22, 2013 2:24 am

Re: probably the best usb to i2s device

Post by wushuliu »

nige2000 wrote:
wushuliu wrote:hmm, the potato is the one I have...
Do you have two?
yes...
Eclipse W6520R/Satori TW29R MTM
Hifime Es9038Pro
3eaudio TPA3251
nige2000
Posts: 4253
Joined: Thu Feb 14, 2013 10:47 am
Location: meath

Re: probably the best usb to i2s device

Post by nige2000 »

So u wanna use them?
sd card player, modded soekris dac, class a lifepo4 amp or gb class a/b amp, diy open baffle speakers based on project audio mundorf trio 10's
wushuliu
Posts: 180
Joined: Tue Oct 22, 2013 2:24 am

Re: probably the best usb to i2s device

Post by wushuliu »

nige2000 wrote:So u wanna use them?
sure! If they make things too complicated I'll get some single chip ones but yeah I'd like to give it a go...
Eclipse W6520R/Satori TW29R MTM
Hifime Es9038Pro
3eaudio TPA3251
nige2000
Posts: 4253
Joined: Thu Feb 14, 2013 10:47 am
Location: meath

Re: probably the best usb to i2s device

Post by nige2000 »

yea your diagram looks ok
I2s connects to d and out on q
Inverted q is not used
Preset and clear is connected to vcc

Master clock to cp

All easy in theory but the wiring is a little messier than the 574 chips
sd card player, modded soekris dac, class a lifepo4 amp or gb class a/b amp, diy open baffle speakers based on project audio mundorf trio 10's
wushuliu
Posts: 180
Joined: Tue Oct 22, 2013 2:24 am

Re: probably the best usb to i2s device

Post by wushuliu »

nige2000 wrote:yea your diagram looks ok
I2s connects to d and out on q
Inverted q is not used
Preset and clear is connected to vcc

Master clock to cp

All easy in theory but the wiring is a little messier than the 574 chips
Thanks nige. Turns out Amazon has 74HC574D available cheap w/ 2 day shipping so I could try that too...
Eclipse W6520R/Satori TW29R MTM
Hifime Es9038Pro
3eaudio TPA3251
Post Reply