With its newly developed "Virtual Coil" technology, the DN3013, dynamically compatible with the DN30x2 series used in many audio devices, now offers a dynamic range of 114 dB, a low voltage power supply of 1.8 V and a power consumption of only 483 mW. The maximum output power is 12.5 W. In addition, special GUI software running on a Windows PC can easily operate a variety of DSP functions.

VirtualCoil offers low in-band and out-band noise for audio products like speakers and earphones. The conventional Class-D amp solution uses 1-bit PWM or PDM scheme where low-noise performance is limited. In order to achieve the best noise performance in other multi-bit PWM or PDM schemes, an internal LDO and/or multiple power supply sources are required. Trigence’s VirtualCoil, using only a single, low voltage DC supply, achieves improved low-noise performance using proprietary multi-bit quantization instead of traditional 1-bit schemes.

“Trigence insists on providing audio-quality digital solutions without loss of acoustic quality. The digital speaker driver DN3013 is targeted for portable audio products where low power and small size are essential. With virtual coil technology, DN3013 improves High Dynamic Range and offers low-noise performance as multi-bit scheme.” said Pete Birch, President and CEO of Trigence.