Hardware/Mezzanine/audio AD-DA
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The board input signals are brougth to differential op-amp circuits with | The board input signals are brougth to differential op-amp circuits with | ||
* <math>R_{15} = R_{17} = R_{16} = R_{18} = R_{36} = R_{38} = R_{37} = R_{39}</math> | * <math>R_{15} = R_{17} = R_{16} = R_{18} = R_{36} = R_{38} = R_{37} = R_{39}</math> | ||
| − | * <math>R_{ | + | * <math>R_{8} / R_{17} = R_{10} / R_{15} = R_{12} / R_{18} = R_{14} / R_{16}</math> |
[[Category:Hardware]] [[Category:Mezzanine]] | [[Category:Hardware]] [[Category:Mezzanine]] | ||
Revision as of 13:04, 5 November 2012
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Audio AD/DA mezzanine board
This board has been developed as a low-cost replacement of the high-speed AD-DA board. It features:
- two 24-bit, 192 kHz, stereo WM8782 ADCs
- two 24-bit, 192 kHz, stereo WM8759 DACs
Power supply
The supply from the connector is used to power the TL064 op amps. They can be powered between ±3.5 V and ±18V.
A TPS54227 DC/DC converter generates 6.5 V from the power supply and is followed by a 5 V regulator.
Hence, the minimal power supply range is about ±7 V.
Input range
The board input signals are brougth to differential op-amp circuits with
- R15 = R17 = R16 = R18 = R36 = R38 = R37 = R39
- R8 / R17 = R10 / R15 = R12 / R18 = R14 / R16
