SA58635 - NXP

SA58635 2 X 25 MW Class-G Stereo Headphone Driver

The SA58635 is a stereo, class-G headphone driver with I2C-bus volume control. The I2C-bus control allows maximum flexibility with digital volume control, independent channel enable and mute control. The output of the SA58635 is referenced around true ground zero. It is designed to operate at the low supply current of 1.5 mA making it battery friendly. A uni.

Features

„ „ „ „ „ „ „ „ „ „ „ „ „ Power supply range: 2.3 V to 5.5 V High efficiency employing class-G dynamic power management 2 × 25 mW into 16 Ω or 32 Ω at THD+N = 1 % Very low THD+N at 0.02 % at VO of 0.7Vo(RMS) and RL of 47 Ω Integrated charge pump to eliminate DC blocking capacitors, reduce cost and PCB space while improving low frequency audio fidelity Excellent PSRR: > 100 dB S/N performance of 100 dB minimum Low supply current: 1.5 mA typical Low shutdown current: 5 μA maximum I2C-bus interface for −59 dB to ±4 dB volume control, independent channel enable, mute and software shutdown Self lim.