CYG2218 [CLARE]
CYBERGATE™; Cybergate ™
| 型号： | CYG2218 |
| 厂家： | 
CLARE |
| 描述： | CYBERGATE™ |
| 文件： | 总4页 (文件大小：98K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CYG2218
CYBERGATE™
Features
Description
• 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
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.
• Compatible with all modem chip sets
• V.32 bis/V.34 compatible
Approvals
• UL recognized file #: E174201
Applications
• Modems
Ordering Information
• Fax machines
Part #
Description
• Remote data acquisition
• Security systems
• Voice mail systems
• PC motherboard
• Computer telephony
• Process control
• Medical
CYG2218
DAA Module (18/Tube)
• PBX
• Direct broadcast satellite
Block Diagram
Surge
Protection
XMIT+
TIP
2 to 4
Line
Line
Current
Circuit
Wire
Transformer
Converter
RCV
RING
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
1
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CYG2218
Absolute Maximum Ratings (@ 25˚ C)
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.
Parameter
Min Typ Max Units
Isolation Voltage
-
0
0
-
-
-
-
1000 VRMS
Operational Temperature
Storage Temperature
Relative Humidity
(Non-Condensing)
Soldering Temperature
70
100
85
°C
°C
%
10
-
-
260
°C
Tip/Ring Load Current
(continuous)
Hookswitch LED Drive
Current
-
-
-
-
120 mA
50
mA
Hookswitch LED Reverse
Voltage
Ring Detect Phototransistor
Voltage VCC
-
-
-
-
5
V
20
V
1
Derate Linearly 1.33 mw / oC
Derate Linearly 3.67 mw / oC
2
Electrical Characteristics
Parameter
Conditions
Min
Typ
Max
Units
DC Electrical Characteristics
On-Hook Impedance
2,1 (R,T) per FCC 68.312
@100V VDC across pins 1,2
10
-
-
MΩ
Off-Hook Line Leakage Current
2,1 (R,T) per FCC 68.312
Power Supply Current @ VCC
@100V VDC across pins 1,2
VCC=5V
-
4
-
5
10
6
µA
mA
Hookswitch Control Current @ (OH)
@VOH=2.4V
@VOH=5.0V
3.5
11.8
4.1
12.4
5.0
13
mA
mA
Hookswitch Control Voltage
Off-Hook
On-Hook
-
-
2.0
-
3.0
0.2
20
0.5
V
V
AC Signal Path Electrical Characteristics
Return Loss
600Ω, 1800Hz
39
40
-
dB
Insertion Loss
Transmit
Receive
600Ω, 1800Hz
Test Circuit 1
-1.0
-1.0
-0.25
0
0
-
+1.0
+1.0
+0.25
dB
dB
dB
Test Circuit 2
300-3500Hz
Frequency Response
Longitudinal Balance
On-Hook
Off-Hook
Transhybrid Loss
Total Harmonic Distortion
DC Loop Current
Per FCC 68.310
Per FCC 68.310
600Ω, 1800Hz
600Ω, 1800Hz
-
60
40
-
-
20
-
-
-32
-80
-
-
-
-10
-
dB
dB
dB
dB
mA
120
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
-
-
-
20
15
-
-
-
150
70
-
VRMS
Hz
-
0.8B
VCC=+5V
-
-
-
-
0.8
VCC
V
V
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)
-
-
-
-
300
-
V
VRMS
Per FCC 68.302
1000
Rev. 1.0
2
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CYG2218
Test Circuits
1. CYG2218 Transmit Insertion Loss
2. CYG2218 Receive Insertion Loss
Ω
Ω
=
=
Package Pinout
CYG2218 Pinouts & Definitions
PIN# Name Function
CYG2218
1
2
4
TIP
Connection to telephone line Tip connected through an external fuse.
GND
XMIT+
VCC
NC
RCV
TIP
RING
RING Connection to telephone line Ring conductor.
18
17
16
15
14
1
2
OH
RI
Driving this pin high asserts the off-hook condition. The hookswitch
LED is current limited by an internal 300Ω resistor.
OH
RI
4
5
5
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.
Top View
15
16
NC
VCC
No connection.
Provides power to the CYG2218. Typically +5V, VCC 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.
Rev. 1.0
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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 sup-
port 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
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