DAC AD1862: Almost THT, I2S input, NOS, R-2R

[Vunce]

Lookin’ good Miro!

 

[miro1360]

Thanks Vunce, we'll see how it sounds. It contains the WM8804, so the jitter is only 50ps

 

[ernesternest]

Yeah, looking good! Slightly bigger, then EASYDAC
I'm curious about your sound impression.

 

[diyiggy]

oh Catarina bella tchi tchi !

 

[Traktorist3d]

Super! Miro handsome, another 8 channel DAC based on ad1862 with i2s input and life is good))

 

[kazap]

... 8 channel DAC based on ad1862 with i2s input....

 

[miro1360]

USB-I2S-2 PCM2706+WM8804, almost THT

Repaired (coupling capacitor in the SPDIF input is needed) ... otherwise it is the same as in the post #2111
Sorry for any inconvenience


Components example, mouser:
IC4:595-PCM2706CPJTR
IC1:238-WM8804GEDS
R7, R8, R9, R10, R13, R14:594-MBB02070C2209FCT
R4:594-MBB02070C7509FCT
R12, R15:594-MBB02070C1501FC1
R1, R3, R5, R6:594-MBB02070C1002FC1
R11:594-B0207C1M000F5T
Q1, Q2:520-ECS120-18-4X-CKM
C13, C14, C16, C17:81-RCE5C2A180J0A2H3B
C20, C21, C26, C27:80-C324C104K1G5TA
C1, C3, C5, C7, C9, C10, C11:505-MKP2D031001FJO00
C18, C19, C22:810-FA16X8R1H105KRU6
C12:505-MKS21.0/63/5
C15:667-EEU-FR1H100B
C23, C24, C25:667-EEU-FS1H270
C2, C4, C6, C8:667-EEU-FR1E101
TR1:580-786013C
IC2, IC3:511-LF33ABV-DG
JP1, JP2, JP4, JP5, X5:571-5-146284-2
JP3:571-5-146285-3
X4:571-5-146268-4
X3:502-PJRAN1X1U02AUX
X2:GP1FAV50RK0F Original and New SHARP Sensor | eBay
X6:649-61729-1011BLF
X1:651-1729128
(JP1, JP2, JP3/5, JP4):855-M7582-05

 

[miro1360]

USB-I2S-2 PCM2706+WM8804 with uf.l, almost THT

Repaired (coupling capacitor in the SPDIF input is needed) ... otherwise it is the same as in the post #2165
Sorry for any inconvenience

 

[miro1360]

SPDIF/Optical to I2S, almost THT, WM8804

Repaired (coupling capacitor in the SPDIF input is needed) ... otherwise it is the same as in the post #2139
Sorry for any inconvenience


Components example, mouser:
IC1:238-WM8804GEDS
R7, R8, R9, R10:594-MBB02070C2209FCT
R4:594-MBB02070C7509FCT
R1, R3, R5, R6:594-MBB02070C1002FC1
JP1, JP2, X5:571-5-146284-2
JP3:571-5-146285-3
X4:571-5-146268-4
Q1:520-ECS120-18-4X-CKM
C13, C14:81-RCE5C2A180J0A2H3B
C16, C17:80-C324C104K1G5TA
C1, C3, C5, C7, C9, C10, C11:505-MKP2D031001FJO00
C12:505-MKS21.0/63/5
C15:667-EEU-FR1H100B
C2, C4, C6, C8:667-EEU-FR1E101
TR1:580-786013C
IC2, IC3:511-LF33ABV-DG
X1:651-1729128
X2:GP1FAV50RK0F Original and New SHARP Sensor | eBay
X3:502-PJRAN1X1U02AUX
(JP1, JP2, JP3):855-M7582-05

 

[jimk04]

Nice work Miro. Might give one a try.. if just using 44.1khz source would we be better using a crystal speed directly divisible by 44.1.?

Got my dac in a chassis yesterday. Using my hotrod PSU1 with the Ti regulators. Added 47uf on the outputs. Seems to work well. Maybe didn't need anything.

Using a cheap 7805 for the AK4118 at the moment. Need to improve that but it is sounding very good.

 

[jimk04]

Apologies for the mish mash of reservoir caps on the psu!

 

[jimk04]

Miro what goes here?! The square 6 pin location.

Edit......got it....TR1!

 

[jimk04]

Buttoned up and front panel done.

 

[Vunce]

Fantastic work Jim!!
Your Dac looks great, enjoy

 

[jimk04]

Thanks Vunce. Need to make my 1656 adaptors up with your little boards.!

 

[Zatopek]

Hi guys,

I was just going to order a simple Toslink/I2S board via Banggood, ebay or wherever and now see, that you have a better option with the WM8804/PCM2706 board.

What should I do?
Order a simple €20,- board for functionality test anyway?
Any recommendation?
Which chip? WM8804? DIR9001?
Stop buying this garbage and start copying Miros WM8804/PCM2706 board?

 

[diyiggy]

@JimK04 : wow, very cool casing !

 

[miro1360]

@jimk04 you nailed it, very cool

@Zatopek
>>What should I do?
Well, it depends:
- if are you more for "ready made" things and you want to save money, buy it from china, there is no chance to compete with this country
- if are you more for DIY and for experimenting (it still glow untested), try my PCB. I'm curious if it will work with the isolating transformer

 

[diyiggy]

Above, Ernst member have purchased a USB to I2S interface for 20 euros with good parts on it...


Miro, I have ordered the uf-L version plus the PS board + 2 tons of the soicSOIC double to single DIP from Vunce pcb... Can you believe it, lol !


I need to call back my doctor, I dived again !

 

[miro1360]

Nice work Miro. Might give one a try.. if just using 44.1khz source would we be better using a crystal speed directly divisible by 44.1.?

Do you mean for the WM8804? The configuration is "hardware mode" and in this mode only the 12MHz crystal is supported