CYG2911

CYG2911 Cybergate™ 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. 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 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 RING R_LIM 470Ω VCC 2 GYRATOR/ CALLER ID 18 17 14 HOOKSWITCH 13 911 911 OH RING 7 R_LIM 8 9 200k VCC 47k VCC RING SURGE DETEC- PROTECTION TION RING 11 10 VCC GND CID1 CID2 TIP 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 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. Typ Max Units 1000 VRMS +70 °C - +100 °C 85 % - +260 °C - 120 50 5 mA mA V - 20 V 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) 2 Conditions Min Typ Max Unit @100VDC across pins 10,11 (R,T), per FCC 68.312 @100VDC across pins 10,11 (R,T), per FCC 68.312 @+5V, VCC - 10 - - MΩ - - 10 µA 7 4.75 20 8 5.0 - 15 9 20 120 Ω mA V mA 300-3500Hz 18 25 - dB Test Circuit 1 Test Circuit 2 300-3500Hz -0.25 - 9 9 +0.25 dB dB dB Per FCC 68.310 Per FCC 68.310 @600Hz and -10dBm Line 1 and Line 2 Tip and Ring 60 40 20 - -45 294 600 120 - dB dB mA dBm Ω Ω VCC @+5V 20 15 - 0.8B 150 70 - VRMS Hz - - 0.8 VCC V V - - - 300 - -5 - +5 V Per FCC 68.302 - - 1000 VRMS www.clare.com R1 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 200Ω - 2.4 20 - 40 200K VCC 0.8 60 - V V mS Ω Package Pinout CYG2911 Pinouts & Definitions CYG2911 LINE 1 LINE 2 911 OH RING 1 2 18 17 VCC GND 14 13 11 10 7 8 9 PIN# I/O Name Function 1 I/O LINE1 Transformer isolated audio signal coupling path for the telephone line. CID1 CID2 2 I/O LINE2 Transformer isolated audio signal coupling path for the telephone line. TIP RING 7 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. 8 I OH Driving this pin LOW asserts the off-hook condition. The hookswitch LED is current limited by an internal 470Ω resistor. 9 O RING Active LOW indicates an incoming ring signal. This is pulsed LOW by the AC ring signal at the ring frequency from 15-40Hz. 10 I/O RING Connection to telephone line Ring conductor. Top View 11 I/O 13 O CID2 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. 14 O CID1 Caller ID connection. See CID2 above. 17 I GND Connected to host system ground. 18 I VCC Provides power to the hookswitch LED. Typically +5V for ≈ 8mA LED current. LED is current limited by an internal 470Ω resistor. VCC should not exceed 20V. CYG2911 Caller ID Connections TIP Connection to telephone line Tip conductor. Pins 13 & 14 should be connected to a 1-Form-A relay (Clare LCA110), as follows: VCC µP Control (Active Low) R1 1 14 2 13 CID1 CID2 www.clare.com 3 For additional information please visit our website at: www.clare.com Clare, Inc. makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to specifications and product descriptions at any time without notice. Neither circuit patent licenses nor indemnity are expressed or implied. Except as set forth in Clare’s Standard Terms and Conditions of Sale, Clare, Inc. assumes no liability whatsoever, and disclaims any express or implied warranty, relating to its products including, but not limited to, the implied warranty of merchantability, fitness for a particular purpose, or infringement of any intellectual property right. The products described in this document are not designed, intended, authorized or warranted for use as components in systems intended for surgical implant into the body, or in other applications intended to support or sustain life, or where malfunction of Clare’s product may result in direct physical harm, injury, or death to a person or severe property or environmental damage. Clare, Inc. reserves the right to discontinue or make changes to its products at any time without notice. Specification: DS-CYG2911-R1.0 ©Copyright 2002, Clare, Inc. All rights reserved. Printed in USA. 6/25/02