MAS9081

www.DataSheet4U.com DA9081.006 1 August, 2005 MAS9081 Dual Band Receiver IC High Sensitivity Very Low Power Consumption Wide Supply Voltage Range Power Down Control Control for AGC On High Selectivity by Crystal Filter Fast Startup Feature DESCRIPTION The MAS9081 AM-Receiver chip is a highly sensitive, simple to use AM receiver specially intended to receive time signals in the frequency range from 40 kHz to 100 kHz. Only a few external components are required for time signal receiving. The circuit has preamplifier, wide range automatic gain control, demodulator and output comparator built in. The output signal can be processed directly by an additional digital circuitry to extract the data from the received signal. The control for AGC (automatic gain control) can be used to switch AGC on or off if necessary. MAS9081 supports dual band operation by switching between two crystal filters and an additional antenna tuning capacitor. MAS9081 has differential input and different internal compensation capacitor options for compensating shunt capacitances of different crystals (See ordering information on page 12). FEATURES Dual Band Receiver IC Highly Sensitive AM Receiver, 0.4 µVRMS typ. Wide Supply Voltage Range from 1.1 V to 5 V Very Low Power Consumption Power Down Control Fast Startup Only a Few External Components Necessary Control for AGC On Wide Frequency Range from 40 kHz to 100 kHz High Selectivity by Quartz Crystal Filter APPLICATION...