Anybody using the new ESS Vout DAC (ES9022)?

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Finally got my finger out, and had a listen to this 9022 dac on a little pcb I made...

An externally hosted image should be here but it was not working when we last tested it.


I read about the 50Mhz local XO for the 9022 the day after I sent the files off for pcb manufacturing, currently using the 12Mhz from the receiver.

I'm using spdif in as I have plenty of spdif sources, using a wm8804 as the receiver.

Excuse the mess on the PCB, I had a duff 8804 initially. Using a simple 3v3 reg for the three 3v3 lines (two for the 8804, one for the 9022)

Very pleasant sound, and driving headphones directly, which is a surprise!

This is the first circuit I've designed myself from scratch, so quite pleased that it works!
 
Standard ES9022 Modules

To ease the hunger of the waiting crowd, here are some latest pictures.

Shown here 2 standard modules with 50MHz low jitter XOs, separate LT1761 regulators, Murata MLCC capacitors, Susumu thin film SMD resistors, ultra-low ESR conductive polymer eletrolytics, and WIMA FKP2 output filtering caps .......


Patrick
 

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ES9022 in Synchronuous Mode

An advanced version of the ES9022 module using a 45.1584MHz XO and 2 ultra-fast single-gate Flip-Flops on a daughter board for dividing down to 11.2896MHz (to replace the TCXO in the QA550).


Patrick

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lovely neat work as usual Patrick, I would be interested in one of these perhaps to run the sub channel for my 3 ways. nice and neat and small, so could be easily built into the amp. that or ackos AKD24 using the same chip. which isnt quite as small though

am I right in assuming these are designed to slot into the SD reader? so with external battery pack you could have full blown portable solution with headphone amp given something to buffer/drive the output?
 
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ES9022 Balanced

Yet another advanced version using a second level PCB with the 2nd ES9022 fed with inverted data from a single gate 741G04 (with its own LT1761 PSU).

The WIMA FKPs are soldered directly on the pins of the XLR connector.


Patrick
 

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  • 110205 ES9022 Bal s.JPG
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