Hardware/Mezzanine/audio AD-DA
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This board has been developed as a low-cost replacement of the [[Hardware/Mezzanine/high-speed_AD-DA|high-speed AD-DA board]]. | This board has been developed as a low-cost replacement of the [[Hardware/Mezzanine/high-speed_AD-DA|high-speed AD-DA board]]. | ||
It features: | It features: | ||
| − | * two 24-bit, 192 kHz | + | * two 24-bit, 192 kHz [http://www.wolfsonmicro.com/products/adcs/WM8782/ WM8782] stereo ADCs |
| − | * two 24-bit, 192 kHz | + | * two 24-bit, 192 kHz [http://www.wolfsonmicro.com/products/dacs/WM8759/ WM8759] stereo DACs |
== Power supply == | == Power supply == | ||
Revision as of 14:07, 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:
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
