CPC7583 Line Card Access Switch INTEGRATED CIRCUITS DIVISION Features Description Monolithic IC reliability The CPC7583 is a monolithic 10-pole line card access Low, matched, R switch in a 28-pin SOIC package. It provides the ON necessary functions to replace three 2-Form-C Eliminates the need for zero-cross switching electromechanical relays on analog line cards and Flexible switch timing for transition from ringing combined voice and data line cards found in central mode to talk mode. office, access, and PBX equipment. The device Clean, bounce-free switching contains solid state switches for tip and ring line break, SLIC tertiary protection via integrated current ringing injection/ringing return, and test access. The limiting, voltage clamping and thermal shutdown CPC7583 requires only a +5 V supply and offers 5V operation with power consumption < 10.5 mW break-before-make or make-before-break switch Intelligent battery monitor operation. Logic-level inputs, no external drive circuitry required Compatible with Legerity 7583/8583 family Small 28-pin SOIC Ordering Information Applications Part Description Central office (CO) CPC7583BA 28-Pin SOIC, 29/Tube Digital Loop Carrier (DLC) CPC7583BATR 28-Pin SOIC, 1000/Reel PBX Systems Digitally Added Main Line (DAML) Hybrid Fiber Coax (HFC) Fiber in the Loop (FITL) Not for New Designs Pair Gain System Channel Banks T (T ) TESTIN CHANTEST +5Vdc T (T ) TESTOUT DROPTEST T 10 8 5 12 V RING DD SW7 CPC7583 X SW5 SW3 Tip XXX SW9 6 T T 7 LINE BAT X SW1 Secondary SLIC Protection Ring SW2 R 23 R 22 LINE BAT X 17 IN TESTIN L SW10 SW6 XSW4 X X SCR 16 Switch IN V A REF RINGING and 15 Control T IN TESTOUT Trip Logic C X Circuit 18 H LATCH SW8 19 20 24 1 28 14 13 R (R ) TESTOUT DROPTEST F GND T SD D 300 (min.) GND V BAT RINGING V BAT R (R ) TESTIN CHANTEST Pb e3 DS-CPC7583-R07 www.ixysic.com 1CPC7583 INTEGRATED CIRCUITS DIVISION 1 Specifications . 3 1.1 Package Pinout . 3 1.2 Pinout Description . 3 1.3 Absolute Maximum Ratings 4 1.4 ESD Rating 4 1.5 General Conditions 4 1.6 Switch Specifications . 5 1.6.1 Break Switches, SW1 and SW2 . 5 1.6.2 Ringing Return Switch, SW3 6 1.6.3 Ringing Switch, SW4 . 7 1.6.4 TEST Switches, SW5 and SW6 8 OUT 1.6.5 Ringing Test Return Switch, SW7 9 1.6.6 Ringing Test Switch, SW8 10 1.6.7 TEST Switches, SW9 and SW10 10 In 1.7 Additional Electrical Characteristics . 11 1.8 Protection Circuitry Electrical Specifications 12 1.9 Truth Tables . 12 1.9.1 Truth Table for CPC7583xA and CPC7583xB . 12 1.9.2 Truth Table for CPC7583xC and CPC7583xD . 13 2 Functional Description . 14 2.1 Introduction . 14 2.2 Switch Logic . 14 2.2.1 Make-Before-Break Operation (Ringing to Talk Transition) . 15 2.2.2 Break-Before-Make Operation (Ringing to Talk Transition) . 15 2.3 Alternate Break-Before-Make Operation . 15 2.4 Data Latch 16 2.5 T Behavior 16 SD 2.6 Ringing Switch Zero-Cross Current Turn Off 16 2.7 Power Supplies 16 2.8 Battery Voltage Monitor 16 2.9 Protection . 16 2.9.1 Diode Bridge/SCR . 16 2.9.2 Current Limiting function 17 2.10 Temperature Shutdown . 17 2.11 External Protection Elements . 17 3 Manufacturing Information . 18 3.1 Mechanical Dimensions 19 3.1.1 CPC7583BA . 19 3.1.2 CPC7583BATR Tape and Reel Specifications . 19 2 www.ixysic.com R07