NTE1692中文資料NTE數(shù)據(jù)手冊PDF規(guī)格書
NTE1692規(guī)格書詳情
Description:
The NTE1691 and NTE1692 are monolithic CMOS integrated circuits in an 18–Lead DIP type package that provide all the features required for implementing a pulse dialer with redial.
Features:
? Uses Either a Standard 2 of 7 Matrix Keyboard with Negative True Common or the Inexpensive Form A–Type Keyboard
? Make/Break Ratio Can Be Selected
? Redial with * or #
? Tone Signal Output or On–Chip Reference Voltage by Bonding Option on Chip
? 10pps/20pps Can be Selected
Functions:
? Mute Output Logic “0”
? Pulse Output Logic “0”
? RC Oscillation for Reference Frequency
? Designed to Operate Directly from the Telephone Line
? Used CMOS Technology for Low Voltage, Low Power Operation
? Power Up Clear Circuitry
? NTE1691 Pin2: VREF
? NTE1692 Pin2: Tone Out
