Silicon Laboratories released their Class D ToolStick evaluation kit. The evaluation kit enables developers to add digital Class D audio capabilities to 32-bit embedded designs based on Silicon Labs’ feature-rich SiM3U1xx Precision32 microcontrollers (MCUs). The Class D ToolStick evaluation kit includes full source code and implements a Class D amplifier demonstration using a small-footprint 40-pin 6 mm x 6 mm package SiM3U1xx MCU. The USB-based kit is available now. It is priced at $35.