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CPC7508BTR Datasheet(PDF) 1 Page - Clare, Inc. |
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CPC7508BTR Datasheet(HTML) 1 Page - Clare, Inc. |
1 / 14 page DS-CPC7508 - R04 www.clare.com 1 CPC7508 Line Card Access Switch Features • TTL logic level inputs for 3.3V logic interfaces • Smart logic for power up / hot plug state control • Monolithic IC reliability • Low matched R ON • Clean, bounce-free switching • Tertiary protection consisting of integrated current limiting and thermal shutdown for SLIC protection • +12.5V operation with power consumption ≤25mW • Latched logic level inputs, no external drive circuitry required • Small 16-pin SOIC Applications • Fiber to the Home (FTTH) • Fiber in the Loop (FITL) • VoIP Gateways • PBX Systems • Digitally Added Main Line (DAML) • Hybrid Fiber Coax (HFC) Description 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 Figure 1. CPC7508 Block Diagram 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) CPC7508 T LINE R LINE T BAT V DD R BAT GND IN A IN B T SD LATCH 6 11 5 1 3 2 12 16 15 13 L A T C H Switch Control Logic +12V DC Ringing SLIC 8 X SW5 T(T ) TEST_IN CHAN_TEST 9 XSW6 R(R ) TEST_IN CHAN_TEST 7 X T(T ) TEST_OUT DROP_TEST SW3 X X SW2 SW1 Secondary Protection Tip Ring 10 XSW4 R(R ) TEST_OUT DROP_TEST X X SW7 SW8 IN C 14 RoHS 2002/95/EC e3 Pb |
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