IL91214A - IK Semiconductor

IL91214A Tone/pulse Dialer

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 input Oscillator output Ground Supply output Tone dialing output Dialing transmission mute output Mode output pin .

Features

14 OSCO 04 Vss 05 Vdd TONE 1 2 1 2 IL91214A 13 12 11 10 09 06 07 08 XMIT MUTE HK MODE IN 01 02 18 17 16 R4 R3 R2 R1 C3 C2 C1 DP 3 4 5 6 7 8 9 10 11 12 13 14 15 16 OSCI 03 OSCO 04 15 14 13 12 Vss 05 Vdd 06 TONE 07 XMIT MUTE 08 11 10 MODE OUT 09 KT 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 OSCI OSCO VSS VDD TONE XMIT MUTE MODE OUT KT DP C1 C2 C3 R1 R2 R3 R4 Fig. 1. Pin configuration in package IL91214B 1 IL91214 A, IL91214B www.DataSheet4U.com R1 KEYBOARD LOGIC R4 C1 C3 REDIAL MEMORY 32 DIGITS OUTPUT LOGIC DP KT XMIT MUTE MODE OUT VDD DTMF GENERATOR TONE MODE IN HK OS.