CYG2911
Part | Datasheet |
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CYG2911 | CYG2911 (pdf) |
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Features • Transformer signal coupling • Complete ring detector circuit • Low power hookswitch • Electronic inductor/gyrator circuit • Surge protection • Caller ID pinout to external relay optional • Transient protection zeners • V.32 compatible • FCC Compatible • PC board mountable • Parallel telephone off-hook detection Applications • Home medical devices • Plant monitoring equipment • Security/alarm systems • Utility meters • Network routers • PBX systems • Telephony applications • Set top boxes CYG2911 Cybergate Description The CYG2911 is a Data Access Arrangement DAA module providing a complete telephone line interface circuit in a small x plastic package. This module incorporates a circuit which signals HIGH when another phone in parallel has been taken off-hook when the CYG2911 is off-hook. This feature is important for cable TV set-top boxes and direct broadcast satellite units which must hang-up go on-hook when a consumer needs the phone line to place a 911 or emergency call. The module is designed to meet FCC Part 68 requirements thus providing a low-risk design solution. Approvals • UL 1950/UL1459 • Compatible with U.S. and Canadian phone lines Ordering Information Part # CYG2911 Description DAA Module Block Diagram CYG2911 LINE 1 LINE 2 911 7 OH 8 RING 9 RING R_LIM GYRATOR/ CALLER ID 18 VCC 17 GND HOOKSWITCH 200k 47k R_LIM RING SURGE DETEC- PROTEC- TION RING 14 CID1 13 CID2 11 TIP 10 RING Handling and Assembly Recommendations The CYG2911 products are not hermetically sealed and should not be exposed to any liquid-based rinsing processes. Clare recommends two 2 approaches. The modem should either use a no clean soldering flux that would mostly evaporate during the normal wave soldering processes, or be soldered in by hand after the rest of the card is wave soldered. DS-CYG2911-R1 CYG2911 Absolute Maximum Ratings C Parameter Isolation Voltage Operational Temperature Storage Temperature Relative Humidity Non-Condensing Soldering Temperature Tip/Ring 5, 6 Load Current continuous Hookswitch LED Drive Current - Ring Detect Phototransistor Voltage VCC Typ Max Units 1000 VRMS +70 °C - +100 °C - 85 % - +260 °C - 120 mA - 50 mA -5 V - 20 V Absolute Maximum Ratings are stress ratings. Stresses in excess of these ratings can cause permanent damage to the device. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this data sheet is not implied. Exposure of the device to the absolute maximum ratings for an extended period may degrade the device and effect its reliability. |
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