DRV604PWPR

The DRV604PWPR from Texas Instruments is a 2-Vrms pop-free stereo line driver with an integrated stereo headphone output. Designed with TI’s patented DirectPath™ technology, this device allows for the removal of output DC-blocking capacitors, leading to reduced component count and lower system costs. It is ideal for single-supply electronics where size and cost are critical design parameters.

This audio amplifier operates from a supply voltage range of 3.0V to 3.7V. It delivers a typical output voltage of 2Vrms into a 5k load at a 3.3V supply. The headphone output can provide a clean 40mW into a 32 load from the same 3.3V supply. Key electrical characteristics include a high Signal-to-Noise Ratio (SNR) greater than 109dB and very low Total Harmonic Distortion + Noise (THD+N) of less than 0.002% at 10k.

The DRV604PWPR features differential inputs and uses external gain-setting resistors, supporting a gain range from -1V/V to -10V/V. It includes essential protection features such as Power Sense, Undervoltage Protection (UVP) for brown-out conditions, short-circuit protection, and thermal protection. The device also offers ±8kV IEC ESD protection.

Applications for the DRV604PWPR include LCD and PDP TVs, Blu-ray Disc™ and DVD players, mini/micro combo systems, and soundcards. It is footprint compatible with the DRV602 and DRV603, and supports a dual line driver configuration.