XE0002B

www.DataSheet4U.com XECOM DAA with 2/4 Wire Hybrid Description The XE0002B Data Access Arrangement provides a 'direct connect' telephone line interface. It complies with FCC Part 68 hazardous voltage, surge and leakage current specifications. This component may be used as the direct connect telephone line interface for virtually any application in which voice or data is to be transmitted over the public switched telephone network. The XE0002B provides high voltage isolation, independent on/off hook control, ring detection circuitry and a 2 to 4 wire converter hybrid for use in modem applications. It operated from ±5 volt power supplies and occupies 1.25 square inches of board space. XE0002B PIN CONFIGURATION VDD Vcc RI RCVR XMIT XMFR T1 OH GND T2 1 2 3 4 5 6 7 8 9 10 20 TIP 17 (Top View) 14 13 12 11 RING N/C N/C N/C N/C Features Small Size - 1.25" x 1.0" x 0.5" FCC Part 68 Compliant Ring Detection 2 to 4 Wire Converter 1500 Volt Isolation 800 Volt Surge Protection Hookswitch Control CAUTION PINS 17 & 20 HAVE 1500V ISOLATION FROM THE REST OF THE CIRCUITRY. THIS ISOLATION SHOULD BE PRESERVED THROUGHOUT THE SYSTEM Block Diagram Pin Descriptions PIN NAME 1 2 3 4 5 6 VDD VCC \RI RCVR XMIT XMFR I/O ----O O I I DESCRIPTION -5 Volts. +5 Volts Ring Indicator, output, active LO, TTL. When low indicates the modem is receiving a ring signal. Analog signal output from the 2-4 wire convertor. Analog signal input to the 2-4 wire convertor. Analog input/output f...