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In Reply to: iPad and external DACs posted by soundchekk on August 17, 2012 at 01:57:52:
A little progress.I looked up the TI TAS 1020B datasheet.
Page 21. The EEPROM header got a field called MaxPower given in n * 2mA.
That's probably the relevant parameter in the firmware.
But that means 1 parameter = 1 hardcoded value.You most probably wouldn't be able to handle bus and external power on the same device with this.
The manufacturer would have to choose the worst case scenario (bus power).On a first glance it looks to me that the 1020B would support 2 scenarios only.
Bus PS only or External PS only. A combined scenario wouldn't be possible......except you'd fake that value. Though I doubt that any manufacturer would do/risk that.
Let see how Tenor and XMOS are doing.
Edits: 08/18/12 08/18/12
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- RE: iPad and external DACs - soundchekk 08:01:11 08/18/12 (1)
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