ZHCSFY3B November 2016 – February 2019 TAS2559
PRODUCTION DATA.
ROM mode 1 provides the quickest initialization for the TAS2559 power up and is the lowest power mode. This mode can be used to play a known power up audio sequence before the rest of the audio system software is loaded. The mode provides fault protection, brownout protection, volume control, and Class-H controller. The EQ and Battery Guard can be enabled wth minimal additional configuration. The speaker protection algorithm is not running in this mode and the I/V sense ADCs are powered down to minimize power consumption. The PLL can be disabled for even lower power consumption if the MCLK supplied is at least 12.288MHz for any fs which is multiple or sub-multiple of 48kHz, or 11.2896 MHz for Fs of 44.1kHz. This mode should be used to characterize the electrical performance on the TAS2559 without any influence from the protection algorithm present in other modes.