TAS3218IPZP datasheet(21/78 Pages) TI

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Stereo Digital to Analog Converters

TAS3218

www.ti.com ....................................................................................................................................................................................................... SLES235 – JULY 2008

The TAS3218 has three stereo digital to analog converters (DACs). Each DAC can operate a maximum of 48

kHz. The DACs provide a 48 kHz sampling frequency in master mode. In slave mode 32, 44.1, and 48 kHz are

supported, based upon the master clock frequency. Two of the DACs are configured for providing line outputs.

One of the stereo DACs has the capability to drive either a line out or to be used as a headphone (HP) amplifier.

The stereo headphone amplifier is designed to drive up to 24 mW per channel into a headphone speaker load of

Ω. The headphone output is a single ended configuration using series 16-Ω resistors and AC-coupling

capacitors.

The TAS3218 includes three multiplexed stereo line driver outputs. The input to each of these line drives can be

selected to use one of the ten stereo analog input channels. Additionally, line driver output 1 can output the

contents of the stereo DAC. Each line driver is capable of driving up to a 10 k

Ω load.

NOTE:

To avoid audio aritifacts when using the line driver outputs, I2C commands to

reconfigure the lineout multiplexers should not be issued alone, rather should be

accompanied by a mute/unmute sequence to all analog audio channels of the

TAS3218.

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