TAS3001C

Features:

• Supports nine serial data formats. Receive and transmit serial data formats may be different.
• Programmable two-input digital mixer
• Programmable six-band digital parametric EQ
• Programmable digital bass and treble controls
• Programmable digital volume control with soft mute
• 108-dB dynamic range
• Sample rates from 32 kHz to 96 kHz
• Two serial digital input channels
• Single serial digital output channel
• Serial I2C control channel


Application

·The TAS3001 can be used to perform a number of audio processing functions.

·The TAS3001 can be used to perform parametric equalization to correct the frequency response of a pair of
loudspeakers and microphones as shown in Figure 8−1. In this case, the TAS3001 is used to shape the frequency
response of the transducers by applying filters to compensate for the response irregularities of each transducer
(peaks and valleys of the microphone and loudspeaker response).


Pinout




Specifications

Supply voltage range, AV_DD_PLL, DV_DD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 4.2 V
Digital input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−0.3 V to V_DD + 0.3 V
Operating free-air temperature range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 70
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  −65 to 150
Case temperature for 10 seconds, T_C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122.3
Lead temperature from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97.8
ESD tolerance‡ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2000 V

† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
‡ Human body model per method 3015.2 of MIL-STD-883B.


Description

The TAS3001C is a high-quality, fixed-function, 32-bit digital audio processor. This device contains a number of built-in
processing functions including mixing/scaling of two digital inputs, bass and treble controls, six cascaded stereo
high-precision, limit-cycle-free, second-order IIR filters, soft volume, and soft mute.

These functions of the TAS3001C can be controlled by specifying the desired operating parameters using the I2C interface.

The TAS3001C architecture preserves high-quality audio by using a 32-bit data path, 24 × 32-bit multiplies, and up to
56 bits of precision for some internal calculations. By using 24-bit filter coefficients, the TAS3001 can implement
practically any second-order IIR filter with outstanding fidelity.