CYG2218 CYBERGATE™ Features • Zero insertion loss • Low distortion transformer signal coupling (0.01% max) • Complete ring detector circuit • Low power hookswitch • Electronic inductor/gyrator circuit • Solid state surge protection • Transient protection zeners • Complete hybrid circuit (2-4 wire converter) included • Compatible with all modem chip sets • V.32 bis/V.34 compatible Description Clare’s Cybergate™ CYG2218 DAA module provides a complete telephone line interface circuit featuring 0dB insertion loss. It includes a 2-4 wire converter for transmit and receive signal separation in a small 1.07" x 1.07" x 0.4" package. The module provides a fast and cost effective solution for designs that require an interface to the telephone line. The module is designed to meet FCC part 68 requirements thus providing a low risk design solution. Approvals • UL recognized file #: E174201 Applications • Modems • Fax machines • Remote data acquisition • Security systems • Voice mail systems • PC motherboard • Computer telephony • Process control • Medical • PBX • Direct broadcast satellite Ordering Information Part # CYG2218 Description DAA Module (18/Tube) Block Diagram Surge Protection XMIT+ 2 to 4 Wire Converter Line Transformer Line Current Circuit TIP RING RCV OH Hookswitch RI Ring Detect Handling and Assembly Recommendations The CYG2218 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 by hand after the rest of the card is wave soldered. DS-CYG2218-R1.0 www.clare.com 1 CYG2218 Absolute Maximum Ratings (@ 25˚ C) Parameter Isolation Voltage Operational Temperature Storage Temperature Relative Humidity (Non-Condensing) Soldering Temperature Tip/Ring Load Current (continuous) Hookswitch LED Drive Current Hookswitch LED Reverse Voltage Ring Detect Phototransistor Voltage VCC 1 2 Min 0 0 10 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 mA mA - - 5 V - - 20 V Derate Linearly 1.33 mw / oC Derate Linearly 3.67 mw / oC Electrical Characteristics Parameter DC Electrical Characteristics On-Hook Impedance 2,1 (R,T) per FCC 68.312 Off-Hook Line Leakage Current 2,1 (R,T) per FCC 68.312 Power Supply Current @ VCC Hookswitch Control Current @ (OH) Hookswitch Control Voltage Off-Hook On-Hook AC Signal Path Electrical Characteristics Return Loss Insertion Loss Transmit Receive Frequency Response Longitudinal Balance On-Hook Off-Hook Transhybrid Loss Total Harmonic Distortion DC Loop Current Ring Detection Circuit Characteristics Ringing Voltage Detection Range Ringing Frequency Detection Range Ringer Equivalence Number RING (Pin 5) Output Voltage (Pulsed) Logic ‘0’, Ring present Logic ‘1’, Ring not present Surge and Isolation Characteristics Surge Protection Voltage Tip and Ring (Pins 1,2) Isolation Voltage (Pins 18,17,16,15,14,5,4,to1,2) 2 Conditions Min Typ Max Units @100V VDC across pins 1,2 10 - - MΩ @100V VDC across pins 1,2 VCC=5V @VOH=2.4V @VOH=5.0V 4 3.5 11.8 5 4.1 12.4 10 6 5.0 13 µA mA mA mA - 2.0 - 3.0 0.2 20 0.5 V V 600Ω, 1800Hz 600Ω, 1800Hz Test Circuit 1 Test Circuit 2 300-3500Hz 39 40 - dB -1.0 -1.0 -0.25 0 0 - +1.0 +1.0 +0.25 dB dB dB Per FCC 68.310 Per FCC 68.310 600Ω, 1800Hz 600Ω, 1800Hz - 60 40 20 -32 -80 - -10 120 dB dB dB dB mA VCC=+5V 20 15 - 0.8B 150 70 - VRMS Hz - - - 0.8 VCC V V 1000 - 300 - V Per FCC 68.302 www.clare.com VRMS Rev. 1.0 CYG2218 Test Circuits +VBATT 10H +VBATT 1. CYG2218 Transmit Insertion Loss ILOOP 10H ILOOP 2. CYG2218 Receive Insertion Loss 600Ω 600 VLT RING +5V 10H GND TIP AC Source XMIT+ +5V VCC OH 600Ω NC RI RCV Transmit Insertion Loss = GTR = 20 Log 10H +5V RING OH RI AC Source ÐVBATT VLR TIP +5V GND XMIT+ VCC NC VR RCV ÐVBATT VLT VT Receive Insertion Loss = G RC = 20 Log VR V LR Package Pinout CYG2218 Pinouts & Definitions PIN# Name Function CYG2218 TIP RING 1 2 OH RI 4 5 18 17 16 15 14 GND XMIT+ VCC NC RCV 1 2 4 TIP RING OH 5 RI 14 RCV 15 16 NC VCC 17 XMIT+ 18 GND Top View Rev. 1.0 Connection to telephone line Tip connected through an external fuse. Connection to telephone line Ring conductor. Driving this pin high asserts the off-hook condition. The hookswitch LED is current limited by an internal 300Ω resistor. Active LOW indicates an incoming ring signal. This is pulsed LOW by the AC ring signal and is not a steady state LOW during ringing. Provides the analog output signal from the 2-4 wire converter of the CYG2218. RCV uses a 2.5 volt reference signal and therefore must be capacitively coupled to host equipment which uses a ground reference. No connection. Provides power to the CYG2218. Typically +5V, VCC should not exceed 20V. Provides the analog intput signal from the 2-4 wire converter of the CYG2218. XMIT+ uses a 2.5 volt reference signal and therefore must be capacitively coupled to host equipment which uses a ground reference. Connection to host system ground. 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-CYG2218-R1.0 ©Copyright 2002, Clare, Inc. Cybergate™ is a trademark of Clare, Inc. All rights reserved. Printed in USA. 3/22/02