DRV603PW

The DRV603PW from Texas Instruments is a 3-Vrms pop-free stereo line driver designed for single-supply electronics where size and cost are critical. It employs TI's patented DirectPath™ technology, eliminating the need for output DC-blocking capacitors, thereby reducing component count and cost. This device is capable of driving 3 Vrms into a 2.5-kΩ load with a 5-V supply voltage.

The DRV603PW features differential inputs and supports an adjustable gain range from ±1 V/V to ±10 V/V using external resistors. The line outputs include ±8 kV IEC ESD protection. It operates within a temperature range of -40°C to 85°C and is housed in a 14-pin TSSOP package measuring 5 mm x 6.4 mm.

Key electrical characteristics include a typical SNR greater than 109 dB, typical noise voltage less than 7 µVrms, and THD+N below 0.002%. The device integrates a charge pump to generate a negative supply rail, providing a clean, pop-free ground-biased output. It also includes built-in shutdown control for pop-free on/off transitions and an external/internal undervoltage detector that mutes the output.

Applications for the DRV603PW include PDP/LCD TVs, Blu-ray Disc players, DVD players, home theater systems, and set-top boxes. Its design allows for a significant reduction in component count compared to traditional methods of generating a 3-Vrms output.