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    Untitled

    Abstract: No abstract text available
    Text: TELEPHONE TONE RINGER/RINGING DETECTOR LB1004AC PRELIMINARY Description The LB1004AC is a Full Feature Tone Ringer/Ringing Detector integrated circuit which simultaneously provides a ringer-output tone and a “ ringing-detected” output signal. TTie tone ringer portion of the device provides switchselectable output frequencies of 750,900,940, and 1200 Hz at independently selectable modulation rates of 7.5,10,15,


    OCR Scan     		PDF LB1004AC LB1004AC MCT210Q4898

    LB1006AB

    Abstract: p 421 optoisolator LB1006
    Text: LB1006AB TELEPHONE RINGING DETECTOR Description The LB1006AB Telephone Ringing Detector integrated circuit provides ringing detection functions from the Tip-Ring pair of a telephone loop. This device provides approximately 1 mA output current for two types of output drivers. The output


    OCR Scan     		PDF LB1006AB LB1006AB MCT210Q4898 p 421 optoisolator LB1006