TS4975(2005_07) Datasheet - STMicroelectronics

Description
The TS4975 is a stereo audio headphone driver capable of delivering up to 102mW per channel of continuous average power into a 16Ω singleended load with 1% THD+N from a 5V power supply. The overall gain of these headphone drivers is controlled digitally by volume control registers programmed via the I²C interface, minimizing the number of external components needed. This device can also easily be driven by an MCU to select the output modes, through the I²C bus interface.

■ Operating from VCC = 2.5V to 5.5V
■ I²C bus control interface
■ 40mW output power @ Vcc=3.3V, THD=1%, F=1kHz, with 16Ω load
■ Ultra-low consumption in stdby mode: 0.6 µA
■ Digital volume control range from 18dB to -34dB
■ 14-step digital volume control
■ 9 different output mode selections
■ Pop & click noise reduction circuitry
■ Flip-chip package 12 x 300µm bumps (leadfree)

APPLICATIONs
■ Mobile phones (cellular / cordless)
■ PDAs
■ Laptop/notebook computers
■ Portable audio devices