SLVAEP4 October 2023 BQ79600-Q1 , BQ79612-Q1 , BQ79614-Q1 , BQ79616 , BQ79616-Q1 , BQ79652-Q1 , BQ79654-Q1 , BQ79656-Q1
As shown in Figure 3-3, the high and low timing differs between a tone signal (1us pulse width at 500 kHz) or data communications (approximately 250 ns pulse width at 2 MHz) waveform. However, both tones and data communications share similar rise/fall times and must both be rectangular waveforms with a maximum decay below 1 V. Note that the timing for the thigh/tlow refers to the time that the signal must be above or below the proper threshold value for the integration to succeed. If the signal is noisy during this thigh/tlow time and droops below the threshold value for some time - then there is risk of the signal being detected. We expect that roughly 1us ± 8% for tones and 250ns ± 20ns for data communications is the allowed timing variation for these signals to still be properly detected.