HT9011

Preliminary Features · · · · · · HT9011 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: VALM=1.1V typ. Low current consumption: ICCQ=1.1mA typ. Built-in 2nd stage mixer for double conversion method Mixer operating frequency: 10MHz~50MHz Built-in low-pass filter and waveform shaping circuit enable the extraction of FSK signals from voice signals Built-in battery-saving function for longer battery life time High transmission rate: 1200 bps 20-pin SSOP package (0.65mm Pitch) General Description The HT9011 is designed for FM communication system devices. It combines a paging system, mixer, IF limiter, Quadrature detector, operation amplifier, comparator and more. The HT9011 could provide the customer¢s PAGER system with total solution along with Holtek¢s POCSAG Pager Controller series products. Block Diagram M IX I G N D R E G O R E G C A L M F S K O C H G B S L P F O L P F I R E G . M ix e r A L A R M F S K C O M P . Q u ic k C h a rg e A M P IF A m p O S C Q u a d D e t O S C I O S C O M IX O V C C IF IN D E C F S K R IF O Q U A D A F O 1 March 1, 2000 Preliminary Pin Assignment O S C I 1 2 3 4 5 6 7 8 9 1 0 O S C O M IX O V C C IF IN D E C F S K R IF O Q U A D A F O 2 0 1 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 M IX I G N D R E G O R E G C A L M F S K O C H G B S L P F O L P F I HT9011 H T 9 0 1 1 2 0 S S O P Pin Description Pin N...