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NEDSP1062-KBD Operating Manual
4. Operation.
4.
Operation.
4.1
Keyboard.
The keyboard has 2 buttons and a tricolour LED.
4.1.1 Power button.
The power button switched the module on and off. When
the module is off, the audio bypasses the module, so
the circuit will behave as if the module isn’t present.
Switching the power on routes the audio through the
module.
Note:
If the power is on and the DSP is switched off, the
audio still passes through the DSP - but without any signal
processing.
A single press on the button switches on, and a single
press will switch off. Also with the power connected and
the module switched off the circuit will still draw 6mA.
4.1.2 DSP level button.
This button is used to set the following:
•
DSP on/off
•
DSP level
•
4 or 8 levels of noise cancellation
•
Demonstration modes
Figure 17. NEDSP1062-KBD keyboard.
Power button
(power and
Audio bypass)
DSP
level
button
Tri colour
LED
