CYG2218

CYG2218
CybergateTM DAA
INTEGRATED CIRCUITS DIVISION
Features
Description
• Zero Insertion Loss
• Low Distortion Transformer Signal Coupling
(0.01% max)
• Complete Ring Detector Circuit
• Low Power Hook Switch
• Electronic Inductor/Gyrator Circuit
• Solid State Surge Protection
• Transient Protection Zener Diodes
• Complete Hybrid Circuit (2-4 Wire Converter)
Included
• Compatible with All Modem Chip Sets
• V.32 bis/V.34 Compatible
IXYS Integrated Circuits Division’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.
Applications
• UL Recognized: File E174201
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Ordering Information
Approvals
Modems
Fax Machines
Remote Data Acquisition
Security Systems
Voice Mail Systems
PC Motherboard
Computer Telephony
Process Control
Medical
PBX
Direct Broadcast Satellite
Part
Description
CYG2218
DAA Module (18/Tube)
Block Diagram
Surge
Protection
XMIT+
2 to 4
Wire
Converter
Line
Transformer
Line
Current
Circuit
TIP
RING
RCV
OH
Hook Switch
Ring
Detect
RI
DS-CYG2218-R02
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CYG2218
INTEGRATED CIRCUITS DIVISION
1 Specifications
1.1 Absolute Maximum Ratings @ 25°C
Symbol
Ratings
Units
1000
Vrms
120
mA
50
mA
5
V
20
V
10-85
%
0-70
°C
0-100
°C
Isolation Voltage
Tip/Ring Load Current
(Continuous)
Hook Switch LED Drive Current
Hook Switch LED Reverse Voltage
Ring Detect Phototransistor
Voltage VCC
Relative Humidity
(non-condensing)
Operational Temperature
Storage Temperature
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 conditions
beyond those indicated in the operational sections of this
data sheet is not implied.
1.2 DC Electrical Characteristics @ 25°C (Unless Otherwise Noted)
Parameter
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
Conditions
Minimum
Typical
Maximum
Units
@100VDC Across Pins 1, 2
10
-
-
M
@100VDC Across Pins 1, 2
-
-
10
A
VCC = 5V
4
5
6
mA
VOH = 2.4V
3.5
4.1
5
VOH = 5V
11.8
12.4
13
Off-Hook
-
2
3
20
On-Hook
-
-
0.2
0.5
Hook Switch Control Current @ OH
mA
Hook Switch Control Voltage
V
1.3 AC Signal Path Electrical Characteristics @ 25°C (Unless Otherwise Noted)
Parameter
Return Loss
Insertion Loss
Transmit
Receive
Frequency Response
Conditions
Minimum
Typical
Maximum
Units
600, 1800Hz
39
40
-
dB
-1
0
+1
dB
-0.25
-
+0.25
dB
60
-
-
40
-
-
-
-32
-10
600, 1800Hz, Test Circuit 1
600, 1800Hz, Test Circuit 2
300Hz - 3500Hz
Longitudinal Balance
On-Hook
Off-Hook
Per FCC 68.310
dB
Transhybrid Loss
600, 1800Hz
Total Harmonic Distortion
600, 1800Hz
-
-80
-
dB
-
20
-
120
mA
DC Loop Current
R02
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dB
2
CYG2218
INTEGRATED CIRCUITS DIVISION
1.4 Ring Detection Circuit Electrical Characteristics @ 25°C (Unless Otherwise Noted)
Parameter
Conditions
Minimum
Typical
Maximum
Units
Ringing Voltage Detection Range
-
20
-
150
Vrms
Ringing Frequency Detection Range
-
15
-
70
Hz
Ringer Equivalence Number
-
-
0.8B
-
-
-
-
0.8
-
-
VCC
RING (Pin 5) Output Voltage (Pulsed)
Logic “0”, Ring Present
@ VCC = +5V
Logic “1”, Ring Not Present
V
1.5 Surge and Isolation Electrical Characteristics @ 25°C (Unless Otherwise Noted)
Parameter
Conditions
Minimum
Typical
Maximum
-
-
-
300
V
-
Vrms
Surge Protection Voltage Tip & Ring (Pins 1, 2)
Isolation Voltage, Pins (18, 17, 16, 15, 14, 5, 4) to (1, 2)
Per FCC 68.302
1000
-
Units
1.6 Test Circuits
+VBATT
+VBATT
10H
10H
600Ω
TIP
600Ω
10H
Test Circuit 2: CYG2218 Receive Insertion Loss
Test Circuit 1: CYG2218 Transmit Insertion Loss
ILOOP
VLT
RING
+5V
OH
RI
GND
XMIT+
-VBATT
Transmit Insertion Loss = GTR = 20Log
TIP
VLR
AC
Source
RING
+5V
VCC
NC
RCV
ILOOP
600Ω
10H
+5V
OH
RI
AC
Source
+5V
GND
XMIT+
VCC
NC
RCV
VR
-VBATT
VLT
Receive Insertion Loss = GRC = 20Log
VT
VR
VLR
1.7 CYG2218 Pinouts and Definitions
Pinouts
Pin
CYG2218
TIP
RING
OH
RI
18
17
16
15
14
1
2
4
5
Top View
3
GND
XMIT+
VCC
NC
RCV
Name
Function
1
TIP
2
RING
4
OH
Driving this pin high asserts the off-hook condition. The hook switch
LED is current limited by an internal 300 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
15
NC
No Connection
16
VCC
Provides power to the CYG2218. Typically +5V, VCC should not exceed
20V.
17
XMIT+
Provides the analog input 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 that uses a ground reference.
18
GND
Connection to telephone line Tip connected through an external fuse.
Connection to telephone line Ring conductor.
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 that uses a ground reference.
Connection to host system ground.
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R02
CYG2218
INTEGRATED CIRCUITS DIVISION
2 Manufacturing Information
2.1 Handling and Assembly Recommendations
The CYG2218 is not hermetically sealed, and should not be exposed to any liquid-based rinsing processes. IXYS
Integrated Circuits Division recommends two (2) approaches: (1) the modem should be installed in a wave-soldering
process that uses a no-clean soldering flux that will mostly evaporate during the normal wave-soldering processes,
(2) the modem should be soldered in by hand after the rest of the card is wave-soldered.
2.2 Reflow Profile
This product has a maximum solder temperature as shown below.
Device
Maximum Temperature
CYG2218
260°C
2.3 Mechanical Dimensions
2.3.1 CYG2218
1.91
(0.075)
27.18
(1.070)
TIP
10.16
(0.400)
21.59
(0.850)
GND
3.43
(0.135)
XMIT+
RING
+VCC
27.18
(1.070)
OH
NC
RI
RCV
2.54
(0.100)
0.634 SQ.
(0.025)
TYP.
1.09 DIA.
(0.043)
TYP.
3.18
(0.125)
TOP VIEW
SIDE VIEW
PCB Pattern
(Top View)
Dimensions
mm
(inches)
For additional information please visit our website at: www.ixysic.com
IXYS Integrated Circuits Division 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 IXYS Integrated
Circuits Division’s Standard Terms and Conditions of Sale, IXYS Integrated Circuits Division 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 IXYS Integrated Circuits Division’s product may result in direct physical harm, injury, or death to a person or severe
property or environmental damage. IXYS Integrated Circuits Division reserves the right to discontinue or make changes to its products at any time without notice.
Specification: DS-CYG2218-R02
©Copyright 2012, IXYS Integrated Circuits Division
All rights reserved. Printed in USA.
12/19/2012
R02
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