SLASEG6B May 2018 – June 2020 TAS3251
The TAS3251 device includes audio processing to optimize the audio performance of the audio system into which they are integrated. The TAS3251 device has 12 Biquad Filters for speaker response tuning, One dual band DPEQ to dynamically adjust the equalization curve that is applied to low-level signal and the curve that is applied to high level signals. A 2-band advanced DRC + AGL structure limits the output power of the amplifier for two regions while controlling the peaking that can occur in the crossover region during compression. A fine volume control is provided to finely adjust the output level of the amplifier based upon the system level considerations faced by the product development engineer.
The TAS3251 device has two signal monitoring options available, the level meter and the serial data out signal. The level meter monitors the signal level through an alpha filter and presents the signal in an I²C register. The level meter signal is taken before the 4x interpolation which occurs before the digital-to-analog conversion.
The details of the audio processing flow, including the I²C control port registers associated with each block, are shown in .