AMB Laboratories DIY Audio

[ShinyFalcon]

Could I use 595-UA78M33CKCS with the σ25 for 3.3V regulation? Intended use is to power four SPDIF receivers and one transmitter. Source of power is direct from another σ25's C2.

Since it does say no external components and there is no mention of recommended circuit layout in the datasheet, I can make a very simple P2P breadboard with just the 3.3V regulator and five inductors.

[linux-works]

personally, I'd power the toslinks from the main 5v and use 5v parts, not 3.3v parts.

logic levels should be compat at the output of the toslink receiver. just connect the vcc line of the toslink to the main 5v line.

toslink does not need tight regulation. the amplitude of the spdif won't affect anything, really, especially after being 'received' by the 8416.

[amb]

Could I use 595-UA78M33CKCS with the σ25 for 3.3V regulation? Intended use is to power four SPDIF receivers and one transmitter. Source of power is direct from another σ25's C2.

Yes, but be aware that this regulator is rated only for 500mA rather than the typical 1A or 1.5A for the "standard" 78xx series.