CPC7508BTR
CPC7508BTR Datasheet
CPC7508
| Part | Datasheet |
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CPC7508BTR |
CPC7508BTR (pdf) |
| Related Parts | Information |
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CPC7508B |
CPC7508B |
| PDF Datasheet Preview |
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| CPC7508 Line Card Access Switch • TTL logic level inputs for 3.3V logic interfaces • Smart logic for power up / hot plug state control • Monolithic IC reliability • Low matched RON • Clean, bounce-free switching • Tertiary protection consisting of integrated current limiting and thermal shutdown for SLIC protection • +12.5V operation with power consumption • Latched logic level inputs, no external drive circuitry required • Small 16-pin SOIC • Fiber to the Home FTTH • Fiber in the Loop FITL • VoIP Gateways • PBX Systems • Digitally Added Main Line DAML • Hybrid Fiber Coax HFC The CPC7508 is a member of Clare’s next generation Line Card Access Switch family. When used with ringing SLICs it provides the necessary functions to replace the two 2-Form-C electromechanical test relays used in contemporary Fiber To The Home FTTH and Optical Network Unit ONU deployments as well as Voice over IP VoIP telephony terminals. Solid state switches provide the mechanism for tip and ring line break, drop test, and channel test while requiring only a single +12V supply for operation. Interface compatibility with 3.3V or 5V logic for switch state control is provided by the TTL logic level inputs. The CPC7508 is designed for fiber access units where EMR’s are used for test access and line monitoring functions but solid-state switches are desired due to reduced operating noise, lower power consumption and longer lifetimes. This monolithic 8-pole solid-state switch is available in a 16-pin SOIC package. Ordering Information Part Number Description CPC7508B 8-pole LCAS, 16-pin SOIC in tubes 50/tube CPC7508BTR 8-pole LCAS, 16-pin SOIC in reels 1000/reel Figure CPC7508 Block Diagram Tip Ring T TEST_IN CHAN_TEST CPC7508 T TEST_OUT DROP_TEST X SW7 T 6 LINE Secondary Protection RLINE 11 XSW3 X SW2 X X SW4 SW8 X X SW5 X SW6 +12VDC 1 VDD Switch Control Logic 5 TBAT 12 RBAT Ringing SLIC INA INB INC LATCH R TEST_OUT DROP_TEST R TEST_IN CHAN_TEST 2002/95/EC DS-CPC7508 - R04 CPC7508 Specifications 3 Package Pinout 3 Pin Description. 3 Absolute Maximum Ratings 3 ESD Rating 3 General Conditions 3 Switch Specifications 4 Break Switches, SW1 and SW2 4 TEST_OUT Switches SW3 & SW4 and TEST BRIDGE Switches SW7 & SW8 5 TEST_IN Switches, SW5 and SW6 6 Digital I/O Electrical Specifications 7 Voltage and Power Specifications 7 Protection Circuitry Specifications 7 Truth Table 8 Functional Description 9 Introduction 9 Description. 9 Overview. 9 Logic States 9 Switch Logic and Control 10 Introduction. 10 Under Voltage Detection and Switch Lock Out 10 Power Up Sequence 10 Hot Plug and Power Up Circuit Design Considerations 10 Power Loss Sequence 11 Data Latch 11 TSD Pin Description 11 Power Supplies 12 Protection. 12 Current Limiting function. 12 Thermal Shutdown 12 External Protection Elements. 12 Manufacturing Information 13 Mechanical Dimensions. 13 Printed-Circuit Board Land Pattern 13 Tape and Reel Packaging 14 Soldering 14 Moisture Reflow Sensitivity. 14 Reflow Profile 14 Washing. 14 Specifications CPC7508 Package Pinout CPC7508 VDD 1 |
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