HT9142 detector equivalent, fm if detector.
* Operating voltage: 1.1V~3.5V
* Constant power supply voltage can be generated by
externally adding a transistor: VREG=1.0V typ.
* Alarm function sensitivity.
Block Diagram
M IX I G N D R E G O R E G C
A LM
.SKO
C H G B S LP .O LP .I
M ix e r
REG .
A LA R M
.SK CO M P.
.
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