Electronics portal | Search electronic components online (or old version here) | >20 mln. datasheets | Electronic circuits, schematics, and diagrams | Social network for geeks | Electronics auctions | News about radio electronics | >50k service manuals | Free fonts download | Pinouts collection



Complete list of electronic components suppliers | Complete list of electronic components producers



S/PDIF to AES3

Adapter to convert S/PDIF to AES3.

Input Output
Signal S/PDIF AES3
Type Unbalanced Balanced
Connector Phono XLR-3
Impedance 75 Ω 110 Ω
Minimum required signal 0.165 Vp-p 0.200 Vp-p

Image:SPDIF_to_AES3.svg

Active circuit

                                           _
                    5 volt                | \
SPDIF out:          |                    -|  O-
                    _  --4,7k-          | |_/  |
              diode ^ |  _    |     _   |  _   |
       10 u ( )     | | | \   |    | \  | | \  |      100 n
O-- -- -||- -------- - -|  O-- -- -|  O- -|  O- -120 r-||- ---- -- 2
   |  |    |        |   |_/   |  | |_/    |_/             |    |
   |   -||-  100n   _       2,2k |                       1 k   |
  75r               ^ diode   |  |     IC                 |    |   AES in
   |                |        --- |                       ---   |
  ---              ---           |       _                    220r
                                 |      | \           100 n    |
                                  -- ---|  O--- --120 r-||- --- --- 3
 Diode = 1N914 or 1N4148            |   |_/    |           |
                                    |    _     |         1 k    --- 1
                                    |   | \    |           |   |
    IC = 74HC04 or CMOS 4049         ---|  O---           --- ---

Discuss this article at the forum