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    4087B

    Abstract: LR4087 LR4087B
    Text: SHARP L R 4 0 8 7 B /L R LR4087B/LR4087BN Tone Dialer LSI 4 0 8 7 B N DESCRIPTION PIN CONNECTIONS The LR 4087B /LR 4087B N is m o n o lith ic tone dialer LSI which uses an inexpensive crystal ref­ erence to provide eight audio sinusoidal frequen­ cies. Dual-Tone Multi-Frequency signals are ob­


    OCR Scan     		LR4087B/LR4087BN 16-PIN 4087B LR4087B LR4087B/ LR4087BN LR4087B LR4087 PDF

    LR4087

    Abstract: LR4087B
    Text: LR4087B/ LR4087BN SHARP R 4 8 7 B / L R 4 8 7 B DESCRIPTION The LR 4087B /LR 4087B N is monolithic tone dialer LSI which uses an inexpensive crystal ref­ erence to provide eight audio sinusoidal frequen­ cies. Dual-Tone Multi-Frequency signals are ob­ tained by mixing these frequencies.


    OCR Scan     		LR4087B/ LR4087BN LR4087B/LR4087BN LR4087B 16-pin DIP016-P-300B) LR4087B LR4087 PDF

    LR4087B

    Abstract: LR4087 circuit of rowa television lr4087bn lr4067b
    Text: LR4087B/LR4087BN SHARP L R 4 8 7 B / L R 4 8 7 B PIN CONNECTIONS DESCRIPTION T h e L R 4 0 8 7 B /L R 4 0 8 7 B N is m o n o lith ic to n e dialer LSI which uses an inexpensive crystal ref­ erence to provide eight audio sinusoidal frequen­ cies. Dual-Tone M ulti-Frequency signals are ob­


    OCR Scan     		LR4087B/LR4087BN LR4087B 16-pin DIP016-P-300B) 00142DÃ lr4087b lr4067b LR4087 circuit of rowa television lr4087bn PDF