HC5503C - Intersil Corporation

HC5503C Unbalanced PBX/Key System SLIC

PDIP 1 SOIC 1 SYMBOL TIP DESCRIPTION An analog input connected to the TIP (more positive) side of the subscriber loop through a 150Ω feed resistor. Functions with the Ring terminal to receive voice signals from the telephone and for loop monitoring purposes. An analog input connected to the RING (more negative) side of the subscriber loop through a 150Ω fee.

Features

• Monolithic Integrated Device
• Single +5V Supply
• Controlled Supply of Battery Feed Current for Short Loops (30mA)
• Allows Interfacing With All Ringing Systems
• Switch Hook Detection
• Low Power Consumption During Standby Applications
• PBX Switches (Analog, Digital or ISDN)
• Key Telephone Systems (KTS)
• ISDN PC Plug in Modems
• ISDN Small Office / Home Office (SOHO) Terminal Adapters (TA)
• CTI (Computer Telephony Integration) Products Ordering Information PART NUMBER HC5503CCP HC5503CCB TEMP. RANGE (oC) 0 to 75 0 to 75 PACKAGE 22 Ld PDIP 24 Ld SOIC PKG. NO. E22.4 M24.3 Block Diagram .