SLASEC8B February 2017 – January 2019 PGA460-Q1
The PGA460-Q1 device provides efficient burst generation by exciting the primary side of a center-tap transformer connected on the OUTA and OUTB pins through the complementary low-side FETs operating in a current limiting mode. The frequency of the burst is from 30 kHz to 80 kHz with the current limit from 50 mA to 500 mA. The frequency of the burst, the current limit for transformer primary current, and the number of burst pulses can be controlled by using the FREQUENCY, CURR_LIM_P1, CURR_LIM_P12, PULSE_P1, and PULSE_P2 parameters, respectively.
Figure 3 shows the functional block diagram for echo generation.