TSCS42x Low-Power CODECs Tempo Semiconductor TSCS42x Low-Power CODECs are high-fidelity integrated CODECs that are designed with 32-bit stereo playback and record functionality. These devices integrate the true cap-less headphone amplifier and offer an 8kHz to 96kHz sample rate range. The TSCS42x CODECs operate at 0°C to 70°C temperature range and are available in a 48-lead 7mm x 7mm QFN package. These devices offer an enriched audio presence through a built-in audio output processing DSP engine (AOP) which is tunable by using the Windows®-based Tempo ASC GUI.