SBAS883A February 2018 – June 2018 OPT3101
PRODUCTION DATA.
Reducing coupling between transmitter and receiver is very critical to achieve good system performance. The area of the transmitter current-carrying loop through the LED supply decoupling capacitor, LED, and the AFE pins TX* and VSSL should be minimized. Similarly, the receiver loop involving the photodiode, matching capacitor, and the AFE pins INP and INM should be minimized.Figure 178 shows the transmitter and receiver loops.