Description
The TS4956 is a complete audio system device with three dedicated outputs, one stereo headphone, one loudspeaker drive and one mono line for a hands-free set. The stereo headphone is capable of delivering more than 25 mW per channel of continuous average power into 16Ω single-ended loads with 0.3% THD+N from a 5 V power supply. The device functions are controlled via an I²C bus, which minimizes the number of external components needed.

■ Operating from VCC = 2.7 V to 5.5 V
■ I²C bus control interface
■ 38 mW output power @ VCC = 3.3 V, THD = 1%, F = 1 kHz, with 16Ω Load
■ Ultra low consumption in standby mode: 0.5 µA
■ Digital volume control range from +12 dB to -34 dB
■ 32-step digital volume control
■ Stereo loudspeaker option by I2C
■ 8 different output mode selections
■ Pop & click reduction circuitry
■ Flip-chip package, 18 bumps with 300 µm diameter
■ Lead-free flip chip package
■ Output power limitation on headphone for eardrum damage consideration

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