SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
The Audio Tracking Logic (ATL) is used by HD Radio™ applications to synchronize the digital audio output to the baseband clock. This same IP can also be used generically to track errors between two reference signals (such as frame syncs) and generate a modulated clock output (using software-controlled cycle stealing) which averages to some desired frequency. This process can be used as a hardware assist for asynchronous sample rate conversion algorithms.
Table 12-5391 shows ATL module allocation across device domains.
Instance | Domain | ||
WKUP | MCU | MAIN | |
ATL | - | - | ✓ |
Figure 12-2823 shows the ATL module overview.