TLC320AC02C Datasheet, PDF (77/84 Pages) Texas Instruments – Single-Supply Analog Interface Circuit

Appendix D
Multiple TLC320AC01/02 Analog Interface Circuits on One
TMS320C5X DSP Serial Port
In many applications, digital signal processors (DSP) must obtain information from multiple analog-to-digital
(A/D) channels and transmit digital data to multiple digital-to-analog (D/A) conversion channels. The
problem is how to do it easily and efficiently.
This application report addresses the issue of connecting two channels of an analog interface circuit (AIC)
to one TMS320C5X DSP serial port. In this application report, the AIC is the TLC320AC02.
The TLC320AC02 (and TLC320AC01) analog interface circuit contains both A/D and D/A converters and
using the master/slave mode, it is possible to connect two of them to one TMS320C5X DSP serial port with
no additional logic. The hardware schematic is shown in Figure D–1.
D–1