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CYG2218

P1-P3P4-P4
www.clare.com
DS-CYG2218-R1.0
1
CYG2218
CYBERGATE™
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.
• Modems
• Fax machines
• Remote data acquisition
• Security systems
• Voice mail systems
• PC motherboard
• Computer telephony
• Process control
• Medical
• PBX
• Direct broadcast satellite
• UL recognized file #: E174201
• 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
Applications
Features
Description
Approvals
Ordering Information
Part # Description
CYG2218 DAA Module (18/Tube)
Block Diagram
2 to 4
Wire
Converter
Line
Transformer
Line
Current
Circuit
Hookswitch
Surge
Protection
Ring
Detect
TIP
RING
XMIT+
RCV
OH
RI
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.
www.clare.com
2
CYG2218
Rev. 1.0
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 opera-
tional 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.
Absolute Maximum Ratings (@ 25˚ C)
Parameter Min Typ Max Units
Isolation Voltage - - 1000 V
RMS
Operational Temperature 0 - 70 °C
Storage Temperature 0 - 100 °C
Relative Humidity 10 - 85 %
(Non-Condensing)
Soldering Temperature - - 260 °C
Tip/Ring Load Current
(continuous) - - 120 mA
Hookswitch LED Drive - - 50 mA
Current
Hookswitch LED Reverse - - 5 V
Voltage
Ring Detect Phototransistor
Voltage V
CC
--20V
1
Derate Linearly 1.33 mw / oC
2
Derate Linearly 3.67 mw / oC
Electrical Characteristics
Parameter Conditions Min Typ Max Units
DC Electrical Characteristics
On-Hook Impedance
2,1 (R,T) per FCC 68.312 @100V V
DC
across pins 1,2 10 - - MΩ
Off-Hook Line Leakage Current
2,1 (R,T) per FCC 68.312 @100V V
DC
across pins 1,2 - - 10 µA
Power Supply Current @ V
CC
V
CC
=5V 4 5 6 mA
Hookswitch Control Current @ (OH) @V
OH
=2.4V 3.5 4.1 5.0 mA
@V
OH
=5.0V 11.8 12.4 13 mA
Hookswitch Control Voltage
Off-Hook - 2.0 3.0 20 V
On-Hook - - 0.2 0.5 V
AC Signal Path Electrical Characteristics
Return Loss 600Ω, 1800Hz 39 40 - dB
Insertion Loss 600Ω, 1800Hz
Transmit Test Circuit 1 -1.0 0 +1.0 dB
Receive Test Circuit 2 -1.0 0 +1.0 dB
Frequency Response 300-3500Hz -0.25 - +0.25 dB
Longitudinal Balance
On-Hook Per FCC 68.310 60 - - dB
Off-Hook Per FCC 68.310 40 - - dB
Transhybrid Loss 600Ω, 1800Hz - -32 -10 dB
Total Harmonic Distortion 600Ω, 1800Hz - -80 - dB
DC Loop Current - 20 - 120 mA
Ring Detection Circuit Characteristics
Ringing Voltage Detection Range - 20 - 150 V
RMS
Ringing Frequency Detection Range - 15 - 70 Hz
Ringer Equivalence Number - - 0.8B - -
RING (Pin 5) Output Voltage (Pulsed) V
CC
=+5V
Logic ‘0’, Ring present - - 0.8 V
Logic ‘1’, Ring not present - - V
CC
V
Surge and Isolation Characteristics
Surge Protection Voltage Tip and Ring (Pins 1,2) - - - 300 V
Isolation Voltage (Pins 18,17,16,15,14,5,4,to1,2) Per FCC 68.302 1000 - - V
RMS
CYG2218
www.clare.com
3
Rev. 1.0
Test Circuits
Ω
1. CYG2218 Transmit Insertion Loss
=
Ω
2. CYG2218 Receive Insertion Loss
=
Package Pinout
Top View
18
17
1
2
4
5
GND
XMIT+
RCV
14
16
15
VCC
NC
TIP
RING
OH
RI
CYG2218 Pinouts & Definitions
PIN# Name Function
1 TIP Connection to telephone line Tip connected through an external fuse.
2 RING Connection to telephone line Ring conductor.
4 OH Driving this pin high asserts the off-hook condition. The hookswitch
LED is current limited by an internal 300Ω resistor.
5 RI 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.
14 RCV 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.
15 NC No connection.
16 V
CC
Provides power to the CYG2218. Typically +5V, V
CC
should not exceed
20V.
17 XMIT+ 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.
18 GND Connection to host system ground.
CYG2218
P1-P3P4-P4

CYG2218

Mfr. #:
Buy CYG2218
Manufacturer:
IXYS Integrated Circuits
Description:
Interface Modules Cybergate DAA Module
Lifecycle:
New from this manufacturer.
Delivery:
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