The Texas Instruments DRV632PWR is a 2-VRMS pop-free stereo line driver designed for reduced component count and cost. It offers adjustable gain and operates with a 3.3V supply.
The ON Semiconductor FSA8049UCX is an IC detection switch designed for communication systems and consumer audio applications. It operates within a voltage range of 2.5V to 4.4V and has an operating temperature of -40°C to 85°C.
The STA333W13TR is a fully integrated processor IC from STMicroelectronics, designed for pre-amplifier applications. It features 2 channels and an I²C/I²S interface.