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| CYG2911 CybergateTM 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 Description The CYG2911 is a Data Access Arrangement (DAA) module providing a complete telephone line interface circuit in a small 1.07" x 1.07" x 0.4" 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. Applications * Home medical devices * Plant monitoring equipment * Security/alarm systems * Utility meters * Network routers * PBX systems * Telephony applications * Set top boxes 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 1 2 GYRATOR/ CALLER ID RING R_LIM 18 17 470 VCC VCC GND HOOKSWITCH 14 13 911 CID1 CID2 911 OH RING 7 8 9 200k 47k R_LIM VCC VCC RING SURGE DETEC- PROTECTION TION 11 10 TIP RING 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 www.clare.com 1 CYG2911 Absolute Maximum Ratings (@ 25 C) Parameter Min Isolation Voltage Operational Temperature 0 Storage Temperature 0 Relative Humidity 10 (Non-Condensing) Soldering Temperature Tip/Ring (5, 6) Load Current (continuous) Hookswitch LED Drive Current Hookswitch LED Reverse VoltageRing Detect Phototransistor Voltage VCC Typ Max Units 1000 VRMS +70 C - +100 C 85 % +260 120 50 5 20 C mA mA V 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. Electrical Characteristics Parameter DC Electrical Characteristics On-Hook Impedance Off-Hook Line Leakage Current Hookswitch Resistance Off-Hook Supply Current Hookswitch Power Source, Pin 8 DC Loop Current AC Signal Path Electrical Characteristics Return Loss Insertion Loss Transmit Receive Frequency Response Longitudinal Balance On-Hook Off-Hook DC Loop Current Total Harmonic Distortion + N Secondary Load Impedance Primary Source Impedance Ring Detection Circuit Characteristics Ringing Voltage Detection Range Ringing Frequency Detection Range Ringer Equivalence Number RING (Pin 9) Output Voltage (Pulsed) Logic `0', Ring present Logic `1', Ring not present Surge, Transient, and Isolation Characteristics Surge Protection Voltage Tip and Ring (Pins 11,10) Transient Voltage Protection on Line 1 and Line 2 (Pins 1,2) Isolation Voltage (Pins 1,2,7,8,9,17,18 to 10,11,13,14) Conditions @100VDC across pins 10,11 (R,T), per FCC 68.312 @100VDC across pins 10,11 (R,T), per FCC 68.312 @+5V, VCC 300-3500Hz Test Circuit 1 Test Circuit 2 300-3500Hz Per FCC 68.310 Per FCC 68.310 @600Hz and -10dBm Line 1 and Line 2 Tip and Ring VCC @+5V Min 10 7 4.75 20 18 -0.25 60 40 20 20 15 Typ 8 5.0 25 -45 294 600 0.8B Max 10 15 9 20 120 9 9 +0.25 120 150 70 0.8 VCC Unit M A mA V mA dB dB dB dB dB dB mA dBm VRMS Hz V V Per FCC 68.302 -5 - - 300 +5 1000 V VRMS R1 2 www.clare.com CYG2911 Electrical Characteristics (Continued) Parameter 911 Detection Characteristics (Pin 7) Pulse Voltage External phone off-hook External phone on-hook Pulse Width Internal pull-up resistor Conditions Min Typ Max Unit Telephone DCR 200 - 2.4 20 - 40 200K VCC 0.8 60 - V V mS Package Pinout CYG2911 LINE 1 LINE 2 1 2 18 17 14 13 7 8 9 Top View 11 10 VCC GND CID1 CID2 TIP RING CYG2911 Pinouts & Definitions PIN# I/O Name Function 1 2 7 I/O LINE1 Transformer isolated audio signal coupling path for the telephone line. I/O LINE2 Transformer isolated audio signal coupling path for the telephone line. O 911 Signals HIGH for 20-60ms when the CYG2911 is off-hook and another phone goes off-hook. Glitches may appear on this pin when the CYG2911 first goes off-hook, and should be ignored for a minimum of 200ms. Driving this pin LOW asserts the off-hook condition. The hookswitch LED is current limited by an internal 470 resistor. Active LOW indicates an incoming ring signal. This is pulsed LOW by the AC ring signal at the ring frequency from 15-40Hz. Connection to telephone line Ring conductor. Connection to telephone line Tip conductor. Caller ID connection. CID1/CID2 connect to an external 1Form-A solid state relay (Clare LCA110). When the SSR is closed (connecting CID1 to CID2), Caller ID information is presented to LINE1/LINE2 after the first telephone ring burst. Caller ID connection. See CID2 above. Connected to host system ground. Provides power to the hookswitch LED. Typically +5V for 8mA LED current. LED is current limited by an internal 470 resistor. VCC should not exceed 20V. 911 OH RING 8 I OH 9 O RING 10 11 13 I/O RING I/O TIP O CID2 14 17 18 CYG2911 Caller ID Connections Pins 13 & 14 should be connected to a 1-Form-A relay (Clare LCA110), as follows: VCC 1 14 CID1 O CID1 I I GND VCC P Control (Active Low) R1 2 13 CID2 www.clare.com 3 Worldwide Sales Offices CLARE LOCATIONS Clare Headquarters 78 Cherry Hill Drive Beverly, MA 01915 Tel: 1-978-524-6700 Fax: 1-978-524-4900 Toll Free: 1-800-27-CLARE Clare Micronix Division 145 Columbia Aliso Viejo, CA 92656-1490 Tel: 1-949-831-4622 Fax: 1-949-831-4628 EUROPE European Headquarters CP Clare nv Bampslaan 17 B-3500 Hasselt (Belgium) Tel: 32-11-300868 Fax: 32-11-300890 France Clare France Sales Lead Rep 99 route de Versailles 91160 Champlan France Tel: 33 1 69 79 93 50 Fax: 33 1 69 79 93 59 Germany Clare Germany Sales ActiveComp Electronic GmbH Mitterstrasse 12 85077 Manching Germany Tel: 49 8459 3214 10 Fax: 49 8459 3214 29 Italy C.L.A.R.E.s.a.s. Via C. Colombo 10/A I-20066 Melzo (Milano) Tel: 39-02-95737160 Fax: 39-02-95738829 Sweden Clare Sales Comptronic AB Box 167 S-16329 Spanga Tel: 46-862-10370 Fax: 46-862-10371 United Kingdom Clare UK Sales Marco Polo House Cook Way Bindon Road Taunton UK-Somerset TA2 6BG Tel: 44-1-823 352541 Fax: 44-1-823 352797 ASIA PACIFIC Asian Headquarters Clare Room N1016, Chia-Hsin, Bldg II, 10F, No. 96, Sec. 2 Chung Shan North Road Taipei, Taiwan R.O.C. Tel: 886-2-2523-6368 Fax: 886-2-2523-6369 SALES OFFICES AMERICAS Americas Headquarters Clare 78 Cherry Hill Drive Beverly, MA 01915 Tel: 1-978-524-6700 Fax: 1-978-524-4900 Toll Free: 1-800-27-CLARE Eastern Region Clare P.O. Box 856 Mahwah, NJ 07430 Tel: 1-201-236-0101 Fax: 1-201-236-8685 Toll Free: 1-800-27-CLARE Central Region Clare Canada Ltd. 3425 Harvester Road, Suite 202 Burlington, Ontario L7N 3N1 Tel: 1-905-333-9066 Fax: 1-905-333-1824 Western Region Clare 1852 West 11th Street, #348 Tracy, CA 95376 Tel: 1-209-832-4367 Fax: 1-209-832-4732 Toll Free: 1-800-27-CLARE Canada Clare Canada Ltd. 3425 Harvester Road, Suite 202 Burlington, Ontario L7N 3N1 Tel: 1-905-333-9066 Fax: 1-905-333-1824 http://www.clare.com Clare cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in this Clare product. No circuit patent licenses nor indemnity are expressed or implied. Clare reserves the right to change the specification and circuitry, without notice at any time. The products described in this document are not intended for use in medical implantation or other direct life support applications where malfunction may result in direct physical harm, injury or death to a person. Specification: DS-CYG2911-R1 (c)Copyright 2001, Clare, Inc. All rights reserved. Printed in USA. 1/12/01 |
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