EVAL-ADAU1761Z Analog Devices Inc, EVAL-ADAU1761Z Datasheet - Page 4

• Manufacturer Part Number: EVAL-ADAU1761Z
• Description: Eval Board For ADAU1761
• Manufacturer: Analog Devices Inc
• Series: SigmaDSP®r

Specifications of EVAL-ADAU1761Z

• Main Purpose: Audio, CODEC
• Embedded: Yes, DSP
• Utilized Ic / Part: ADAU1761
• Primary Attributes: Stereo, 24-Bit, 8 ~ 96 kHz Sampling Rate, GUI Tool
• Secondary Attributes: I²C and GPIO Interfaces, 2 Differential and 1 Stereo Single-Ended Analog Inputs and Outputs
• Silicon Manufacturer: Analog Devices
• Core Architecture: SigmaDSP
• Silicon Core Number: ADAU1761
• Silicon Family Name: SigmaDSP
• Application Sub Type: Audio
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

EVAL-ADAU1761Z
YOUR FIRST SigmaStudio PROJECT—EQ AND
VOLUME CONTROL
This section provides a sample first project using SigmaStudio.
1.
2.
3.
4.
Create a new project. The Hardware Configuration tab
will be open.
Drag an ADAU176x cell and a USBi cell into the blank
work area.
Connect the USBi cell to the ADAU176x cell by clicking
and dragging from the top blue output pin of the USBi cell
to the green input pin of the ADAU176x cell.
Your screen should now resemble Figure 3.
In the IC1-ADAU1761 Register Controls tab, select the
3 and 4 in, Capless HP Out option from the Automatic
Startup list and click Load Preset (see Figure 4).
This locks the PLL and sets up the registers for proper
routing of the record and playback paths.
Figure 4. Hardware Configuration Tab—Register Setup
Figure 3. Hardware Configuration Tab
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5.
6.
7.
8.
9.
10. Expand the IO > Output folder. Click and drag two Output
11. Connect all the cells as depicted in Figure 5.
12. Make sure that your board is powered and connected to
13. If the project compiles with no errors, you will be in Ready-
14. Start playing the audio source; you should hear audio on the
Click on the Schematic tab at the top of the screen.
In the Tree Toolbox, expand the IO > Input folder. Click
and drag an Input cell to the work area.
Expand the Filters > Second Order > Double Precision >
2 Ch folder, then click and drag Medium Size Eq to the
work area.
Right-click the General (2
Filter1, then click Grow Algorithm > 1. 2 Channel >
Single Precision > 4. This creates a five-band EQ. The
general filter settings for each band can be modified by
clicking the blue boxes on the cell.
Expand Volume Controls > Adjustable Gain > Shared
Slider > Clickless SW Slew, then click and drag Single slew.
cells. By default, these cells are set to DAC0 (left channel)
and DAC1 (right channel).
the PC. Click Link-Compile-Download in SigmaStudio.
Download mode (indicated by a green bar across the bottom
of the window). Your screen should now resemble Figure 5.
outputs. You can now move the volume control and filter
sliders and hear the effect on the output audio in real time.
Figure 5. Schematic Tab, Full Design
nd
Order) cell labeled Gen