SLASF36A January 2024 – December 2024 TAC5311-Q1
PRODUCTION DATA
For applications that require an even higher SNR than that supported for each channel, the device digital summing mode can be used. In this mode, the digital record data are summed up across the channel with an equal weightage factor, which helps in reducing the effective record noise.
The device supports a fully programmable mixer feature that can mix the various input channels with their custom programmable scale factor to generate the final output channels. Figure 6-23 shows a block diagram that describes the mixer 1 operation to generate output channel 1. The programmable coefficients for the mixer operation are located in Section 7.2.3.
A similar mixer operation is performed by mixer 2, mixer 3, and mixer 4 to generate output channel 2, channel 3, and channel 4, respectively. TI recommends using the PPC3 GUI for configuring the programmable coefficients settings; for more details see the TAC5212EVM-PDK Evaluation module user's guide and the PurePathâ„¢ console graphical development suite. Additional details on the configurations can be found in the Using the TAx5x1x Programmable Digital Channel Mixer application report.