GENERAL DESCRIPTION

The TDA1548T is a dual CMOS digital-to-analog converter (DAC) with up-sampling filter and noise shaper and integrated headphone driver featuring unique signal processing functions. The digital processing features are of high sound processing quality due to the wide dynamic range of the bitstream conversion technique.

FEATURESPRODUCT SPECIFICATION

Easy application

? Only first-order analog post-filtering required

? Headphone amplifiers and digital filter integrated

? Component saving common headphone output

? Selectable system clock (SYSCLK) 64fs, 256fs or 384fs

? 16, 18 or 20 bits I2S-bus or LSB justified serial input format

? Input pins suitable with 5 V low supply voltage interfacing

? Small package (SSOP28)

? Single rail supply (3 V).

High performance

? Superior signal-to-noise ratio

? Wide dynamic range

? Continuous calibration digital-to-analog conversion combined with noise shaping technique.

Features

? Low power dissipation

? Digital volume control

? Soft mute

? Digital tone control (Bass Boost and Treble)

? Digital de-emphasis

? Analog control of digital sound control functions.