KT3170 receiver equivalent, low power dtmf receiver.
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* Detects all 16 standard tones. Low power consumption : 15mW (Typ) Single power supply : 5V Uses inexpensive 3.58MHz crystal Three stat.
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* PABX Central Office Paging Systems Remote Control Credit Car.
Pin No 1 2 3 4 5 Symbol IN + IN GS VREF IIN Description Non inverting input of the op amp. Inverting input of the op amp. Gain Select. The output used for gain adjustment of analog input signal with a feedback resistor. Reference Voltage output (VDD/.
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