as the older device but differs in the following ways:.
Rs resistors on each channel eliminated.
Up to 4x more sensitive for a given value of Cs.
Shorter burst lengths, less power for a given value of Cs.
‘Burst B’ only mode for lower key counts with less power The QT1081 should be used over the QT1080 for new designs due to a simpler circuit, lower power and lower cost. 1.2.6 Detection Integrator Confirmation
Detection Integrator (DI) confirmation reduces the effects of noi.