Hardware/Parallelport/Audio ADC DAC
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This board is used in the "[http://wiki.hevs.ch/fsi/index.php5/EMVs/AudioAmp Filiere Promotions for the EMVS]" Day, where the future students can build a Audio Amplifier Class-D. | This board is used in the "[http://wiki.hevs.ch/fsi/index.php5/EMVs/AudioAmp Filiere Promotions for the EMVS]" Day, where the future students can build a Audio Amplifier Class-D. | ||
| − | == Test == | + | == Audio Amp Test == |
| − | Connect the board | + | * Use FPGA-EBS v2.x |
| − | Connect | + | * Connect the AD-DA board via parallel cable |
| − | + | * Connect the Rotary Switch board via parallel cable | |
| − | * | + | * Connect Mezzanine Audio Adapter board |
| − | * | + | * Power the FPGA via the Mezzanine connector |
| − | * | + | * Connect Step-Up with a coax cable |
| − | * | + | * Connect H-Bridge with the 1 Pin parallel cable |
| − | * | + | * Connect Step-Up with the H-bridge |
| + | * Connect H-Bridge with the Lowpass filter for the Loudspeaker | ||
| + | * Connect the Loudspeaker | ||
| + | * Power Step-up and H-Bridge with +12V - Gnd | ||
| − | [[File: | + | [[File:PP_HEB_ADC_DAC_test.jpg|600px|Test of the PP HEB ADC DAC Board]] |
[[Category:Hardware]] [[Category:Parallelport]] | [[Category:Hardware]] [[Category:Parallelport]] | ||
Revision as of 14:17, 22 January 2014
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Audio ADC DAC board
The board bases on 2 different chips.
- ADC Chip is a BB PCM1804 full differential analog input 24-BIT, 192-kHz stereo A/D converter.
- DAC Chip is a BB PCM1793 24-BIT, 192kHz Stereo D/A converter.
| Version | Photo | Schematics | Description |
|---|---|---|---|
| V1.0 |  |
Mezza ADC DAC Schematic PDF | ADC & DAC parallelport board |
Both the ADC and DAC Chips are supplied by +5V. These power is generated in two steps from the +3.3V power supply from the FPGA-EBS. In the first step with a steup up from +3.3V to ~+5.5V and in a second step, for the DAC and the ADC separably, a VLDO to +5V.
Usage
This board is used in the "Filiere Promotions for the EMVS" Day, where the future students can build a Audio Amplifier Class-D.
Audio Amp Test
- Use FPGA-EBS v2.x
- Connect the AD-DA board via parallel cable
- Connect the Rotary Switch board via parallel cable
- Connect Mezzanine Audio Adapter board
- Power the FPGA via the Mezzanine connector
- Connect Step-Up with a coax cable
- Connect H-Bridge with the 1 Pin parallel cable
- Connect Step-Up with the H-bridge
- Connect H-Bridge with the Lowpass filter for the Loudspeaker
- Connect the Loudspeaker
- Power Step-up and H-Bridge with +12V - Gnd
