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Old 2nd July 2009, 01:12 AM   #1
jkeny is offline jkeny  Ireland
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Default Sabre DAC Tweakers Board

I posted this on another thread about tweaking the Buffalo DAC but as Russ from Twisted Pear pointed out it is a departure from the Buffalo so I decided to put it in it's own thread.

I mounted an ES9018 32 bit SABRE DAC on a prototype board as an alternative to NeoY2k or TP boards. Neither board suited my requirements for a number of reasons & anyway I wished to experiment with power supplies, I/V stages, clocks, etc .

The SchmartBoards, on which I mounted the DAC, are designed to allow easy hand soldering of these smd parts LQFP & even BGA chips are catered for. They have solder grooves into which the pins slot & make hand soldering easy. I reckon one could also hand solder these chips on an ordinary protoboard.

Anyway, the costs were a mere $70 (DAC $60 & Board $10) & seems to me like a good bargain and something that can be done straight away without the expenditure or waiting time of other Sabre DAC offerings.

It would be interesting to have a number of people follow the same route & share tweaking experiences.

My first option will be the PS which I plan to run from batteries (4 batteries - DVCC_T; DVCC_B; AVCC_L; AVCC_R) & each 1.2V from an eneloop battery (3 batteries) - no regulators, just caps. I consider the PS to be the most critical part of the implementation of this DAC & running from batteries is a start.

See here for pics: http://www.diyaudio.com/forums/showt...36#post1870036
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Old 2nd July 2009, 02:39 AM   #2
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where you bought the chip? Do they sell adc ?
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Old 2nd July 2009, 07:56 AM   #3
jkeny is offline jkeny  Ireland
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Your local ESS distributor will sell chip - I didn't ask about ADC
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Old 2nd July 2009, 08:26 AM   #4
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<~ im afraid he is my only distributor
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Old 2nd July 2009, 08:36 AM   #5
jkeny is offline jkeny  Ireland
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Ah Mr Claus is a great source for all things desired but unfortunately only visits once a year & only if you have been good - I wouldn't qualify I'm afraid

My local distributor in the UK sent me their stock levels & I didn't see any ADC listed.
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Old 2nd July 2009, 08:42 AM   #6
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dont forget the cold, hard fact that he s also trippin' a lot

so ~ 60 usd in UK and no extra ordinary shipping rates ?
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Old 2nd July 2009, 08:54 AM   #7
jkeny is offline jkeny  Ireland
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No big shipping costs that I know of - it was just sent from the UK to Ireland - they sent me the DAC chip but haven't charged me yet, go figure. Maybe Santa Claus has secretly visited me?
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Old 2nd July 2009, 06:59 PM   #8
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Where did you get the datasheet ?
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Old 2nd July 2009, 08:58 PM   #9
jkeny is offline jkeny  Ireland
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From the distributor after signing NDA
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Old 3rd July 2009, 06:15 PM   #10
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Sod that for a lark
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