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MK53761

ST Microelectronics
Part Number MK53761
Manufacturer ST Microelectronics
Description REPERTORY DIALER
Published Jan 14, 2007
Detailed Description www.DataSheet4U.com MK53761 REPERTORY DIALER . . . . . . . . . SINGLE CHIP DTMF AND PULSE DIALER SOFTSWITCH CHANGES S...
Datasheet PDF File MK53761 PDF File

MK53761
MK53761

Overview
www.
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SINGLE CHIP DTMF AND PULSE DIALER SOFTSWITCH CHANGES SIGNALING MODE FROM PULSE TO TONE NINE NUMBER REPERTORY PLUS RECALL OF LAST NUMBER DIALED (18 digits each) FLASH KEY INPUT INITIATES TIMED HOOK FLASH 8 TONE PER SECOND DIALING IN TONE MODE AND 10 PPS IN PULSE MODE DTMF ACTIVE UNTIL KEY RELEASE MINIMUM DTMF DURATION/SEPARATION GUARANTEED (74/54 ms) PACIFIER TONE PROVIDES AUDIBLE INDICATION OF VALID KEY INPUT FOR NONDTMF KEY ENTRIES POWERED FROM TELEPHONE LINE, LOW OPERATING VOLTAGE FOR LONG LOOP APPLICATIONS DIP18 SO20 ORDERING NUMBERS : MK53761N00 MK53761D Figure 1 : Pin Connections.
V+ MODE C1 C2 C3 VOSC1 OSC2 1 2 3 4 5 6 7 8 9 D93TL017 18 17 16 15 14 13 12 11 10 PULSE OUTPUT HKS R1 R2 R3 R4 MUTE OUTPUT PACIFIER TONE/ CHIP DISABLE DTMF OUTPUT DESCRIPTION The MK53761 is a Silicon Gate CMOS IC that provides necessary signals for either DTMF or loop disconnect (pulse) dialing.
The MK53761 buffers up to 18 digits...


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