Diagnostics are the ability of a system to identify an issue and communicate it back to the central host to decide what next steps need to be taken. This capability is important for automotive audio applications to ensure both the speaker and the amplifier are performing as expected. Below are some common diagnostics features:

TAS2505 detects and self protects against the following faults:

• Short to Ground
• Short to Power
• Short between Speaker terminals

When the amplifier detects these above errors, it shuts down and an internal flag is raised. This flag can be read with I²C by looking at the register map, as seen below in Table 3-1. When any of the above mentioned faults occur, page 1, 0x2D bit 1 is cleared to 0. The host processor can monitor this bit during normal operation to detect the presence of a fault condition.