AT1511 detection equivalent, fet bias controller and tone detection.
*Provides bias for GaAs and HEMT FETs
*Drives up to three FETs
*Dynamic FET protection
*Drain current set by external resistor
*Regulated negative rai.
is the enhanced 22kHz tone detection and logic output feature which is used to enable high and low band frequency switch.
The AT1511 includes bias circuits to drive up to three external FETs. A control input to the device selects either one of two FETs as operational using 0V gate switching methodology, the third FET is permanently active. This feature is particularly u.
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