AN726 View Datasheet(PDF) - Silicon Laboratories
Part Name
Description
Manufacturer
AN726 Datasheet PDF : 28 Pages
| |||
AN726
3. Using the Demo
The speaker in the kit connects to the JP1 1x2 header next to the green terminal block (J4). Two alternate
connection methods are available to support a variety of speakers: the J4 terminal block, and an output audio jack
(J5). A screwdriver can be used to attach the speaker(s) of choice to J4, and each speaker should have two leads:
positive (red) and negative (black). The audio jack output connects both channels of the speaker to R+ and R–, so
it is not true mono. The Class-D ToolStick board is intended for use with stereo systems.
The Class-D ToolStick can be powered from either the Debug (J3) or Device (J2) USB mini connectors as shown in
Figure 2. The green POWER LED (DS7) will light up when the board is powered. Do not touch the Capacitive
Sensing slider during power-on, as this is when the board calibrates the slider. Once the board is ready for use, the
blue LED (DS1) will turn on.
Figure 2. Powering the Board
Change the volume of the output at any time by pressing firmly and sliding on the Capacitive Sensing slider (CS1).
The blue LEDs above the slider indicate the volume level.
The MODE button on the slider can be used to change the mode of the board:
Mode 1 (blue LED DS1): Stereo Jack Input Mode
Mode 2 (blue LED DS2): USB Input/Output Mode
Mode 3 (blue LED DS3): Play Prerecorded Flash Mode
Mode 4 (blue LED DS4): Play/Record Flash Mode
2
Rev. 0.1
Share Link: 