CS43L21

The CS43L21 is a highly integrated, 24-bit, 96 kHz, low power stereo DAC, based on multi-bit delta-sigma modulator architecture, which allows infinite sample rate adjustment between 4 kHz and 100 kHz. The CS43L21 delivers excellent audio performance while providing portable device developers with an innovative solution that maximizes battery life while minimizing end-product form factors. The CS43L21's key distinction is that it operates from a single, 1.8 V power supply for low power consumption, yet delivers plenty of output power, 46 mW, into stereo 16 ohm headphones for a great listening experience.

By generating its own on-chip negative power supply voltage, the CS43L21 provides ground-centered outputs, which eliminates costly, space-consuming DC blocking capacitors that some competing solutions require. The elimination of these capacitors not only reduces the implementation cost but it also greatly simplifies product design and saves valuable circuit board space. Furthermore, the ground centered outputs, help reduce startup pops and clicks.