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91214B

IK Semiconductor
Part Number 91214B
Manufacturer IK Semiconductor
Description Tone/pulse Dialer
Published Oct 12, 2010
Detailed Description TECHNICAL DATA www.DataSheet4U.com Tone/Pulse Dialer with Handsfree Control and Flash Function IL91214A and IL91214B a...
Datasheet PDF File 91214B PDF File

91214B
91214B

Overview
TECHNICAL DATA www.
DataSheet4U.
com Tone/Pulse Dialer with Handsfree Control and Flash Function IL91214A and IL91214B are tone/pulse dialers designed for providing standard DTMF or pulse signals.
The ICs enable to: - generate standard DTMF or pulse signals of dialing as well as “flash” pulses; - store and redial last number; - generate pause in the transmitted package of dial signals; ICs are designed to be used in telephone sets.
PIN DESCRIPTION HK MODE IN OSCI 01 02 16 15 R4 R3 R2 R1 C3 C2 C1 DP Pin # A B Designation HK MODE IN Description Hook switch input MODE IN = VDD: pulse mode, 10 Hz, М/В = 1/2, MODE IN = VSS: tone mode, MODE IN = floating mode, 20 Hz, М/В = 1/2 Oscillator i...


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