CYG2320 [CLARE]
CYBERGATE; Cybergate
| 型号： | CYG2320 |
| 厂家： | 
CLARE |
| 描述： | CYBERGATE |
| 文件： | 总5页 (文件大小：94K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CYG23XX
CYBERGATE™
Features
Description
Clare’s CybergateTM 23XX DAA modules provide a com-
plete telephone line interface circuit in a small 1.07" x
1.07" x 0.4" package. This module provides a fast and
cost effective solution for designs that require an interface
to the telephone line. The CYG23XX0 is designed to
meet PTT and safety regulations in Germany.
• Low distortion transformer signal coupling
• Complete ring detector circuit
• Low power hookswitch
• Electronic inductor/gyrator circuit
• Surge protection
• V.32 bis /V.34 compatible
• PC board mountable
• 16kHz metering filter
Applications
Approvals
• BSI Approved to EN60950
Certification #: 8123
• Home medical devices
• Plant monitoring equipment
• Security/alarm systems
• Utility meters
• Modems
• Voicemail systems
• Vending machines
• Elevator control boxes
• Network routers
Ordering Information
Part #
Description
• PBX Systems
CYG2300
CYG2320
DAA Module Germany
DAA Module Australia
• PC mother boards
• Telephony applications
• Digital telephone answering machines
Block Diagram
FROM µC
MUTE
VCC
6
Rm
560
7
VCC
LINE 1
1
2
TX1
TX2
10
4.3V
4.3V
LINE 2
RING
GYRATOR
HYBRID
CIRCUIT
RING
DETECT
NETWORK
HOOKSWITCH
VCC
TO TELEPHONE LINE
RX
OH
5
3
11
OH RELAY
TIP
470Ω
4
RING
RING
GND
GND
VCC
56kΩ
Handling and Assembly Recommendations
The CYG23XX 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-CPC2300-R1
1
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CYG23XX
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
Operational Temperature
Storage Temperature
-
-
-
-
1500
70
V
RMS
0
°C
°C
%
0
100
85
Relative Humidity
(Non-Condensing)
10
Soldering Temperature
-
-
260
°C
Tip/Ring Load Current
(continuous)
-
-
-
-
-
120 mA
Hookswitch LED Drive Current
50
5
mA
V
Hookswitch LED Reverse Voltage-
Ring Detect Phototransistor
Voltage V
-
-
20
V
CC
Electrical Characteristics
Parameter
Conditions
Min
Typ
Max
Unit
DC Electrical Characteristics
On-Hook Impedance
V -Ring=100VDC
10
-
-
-
-
10
9
MΩ
µA
Tip
On-Hook Line Leakage Current
Off-Hook Relay Supply Current
V -Ring=100VDC
Tip
V =5V
7
8
mA
CC
Hookswitch Power Source
DC Loop Current
-
-
4.75
5
5.0
-
20
120
V
mA
Mute Relay Supply Current
V =5V
7
8
9
mA
CC
AC Signal Path Electrical
Characteristics
Return Loss
f=300-3500Hz
14
25
-
dB
Insertion Loss
Transmit
Receive
Test Circuit 1
Test Circuit 2
-
-
-
-
7
7
dB
dB
Frequency Response
f=300-3500Hz
-0.25
-
+0.25
dB
Longitudinal Balance
On-Hook
Off-Hook
-
-
60
40
-
-
-
-
dB
dB
Total Harmonic Distortion
Secondary Load Impedance
Primary Source Impedance
f=350Hz, P=-10dBm
Line 1 and Line 2
Tip and Ring
-
-
-
-80
100
600
-
-
-
dB
Ω
Ω
Ring Detection Circuit
Characteristics
Ringing Voltage Detection Range
-
29
15
-
-
-
-
70
-
V
RMS
Ringing Frequency Detection Range
Ringer Impedance
50-70Hz
f=25Hz
Hz
18
KΩ
RING Output Voltage (Pulsed)
Logic ‘0’, Ring present
Logic ‘1’, Ring not present
VCC =+5V
-
-
-
-
0.8
Vcc
V
V
Surge, Transient, and Isolation
Characteristics
Surge Protection Voltage Tip and Ring
-
-
-
-
-
300
V
Isolation Voltage
(Pins 1-7 to 10-11)
60 Seconds
1500
V
RMS
Rev. 1
2
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CYG23XX
Test Circuits
1. CYG23XX Transmit Insertion Loss
2. CYG23XX Receive Insertion Loss
Rm
560
VR
VT
LINE1
LINE2
RING
LINE1
LINE2
RING
GND
+VBATT
ILOOP
+VBATT
ILOOP
Rm
560
10H
10H
600
10H
GND
OH
MUTE
VCC
OH
MUTE
VCC
+5V
TIP
+5V
600
TIP
AC
Source
VLR
VLT
RING
RING
10H
VR
V
LT
Receive Insertion Loss = GRC
=
20Log
Transmit Insertion Loss = GTR = 20Log
V LR
VT
-VBATT
-VBATT
Package Pinouts
CYG23XX Pinouts & Definitions
Function
CYG23XX
PIN# I/O Name
1
2
3
I/O LINE1
Transformer isolated audio signal coupling path for
the telephone line.
LINE 1
1
2
3
4
5
6
7
LINE 2
RING
GND
I/O LINE2
Transformer isolated audio signal coupling path for
the telephone line.
OH
MUTE
VCC
O
RING
Active LOW indicates an incoming ring signal. This
is pulsed LOW by the AC ring signal at the ring fre-
quency.
TIP
RING
11
10
Top View
4
5
I
I
GND
OH
Connected to host system ground.
Driving this pin LOW asserts the off-hook condi-
tion. The hookswitch LED is current limited by an
internal 470W resistor.
6
7
I
I
MUTE
VCC
Driving this pin LOW activates the mute relay for
pulse dialing. See Figure 1. The mute relay LED is
current limited by an internal 470W resistor or
Provides power to the hookswitch LED. Typically
+5V for 8mA LED current. LED is current limited
by an internal 470W resistor. VCC should not
exceed 20V.
11 I/O RING
10 I/O TIP
Connection to telephone line Ring conductor.
Connection to telephone line Tip conductor.
Rev. 1
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3
CYG23XX
Off-Hook Transient Requirement
In order to meet Section 4.6.1 of the CTR-21 requirement, it is necessary to assert the MUTE pin of the
CYG23XX) for a duration of 80mS after the OH pin is driven low as shown in Figure 1. This can be
accomplished via the host firmware or external hardware as shown in Figures 2 and 3 respectively.
µ
µ
Asserting the MUTE pin causes the internal gyrator circuit in the CYG23XX to be bypassed, allowing
low impedance pulse dialing to be performed by pulsing the OH pin. In Figure 2, the microcontroller
output port going to the MUTE pin is used as a shunt for low impedance dialing and is asserted for
80mS when the OH signal is asserted. This method is preferred when the user has control of the host
firmware and can easily write a subroutine to accomplish this function.
For users that do not have easy access to the modem firmware, some external hardware can be
added to accomplish the same function. Figure 3 shows a monostable (one-shot) such as a 555 timer
which is designed to generate an 80mS low going pulse upon the assertion of the OH signal. This
80mS pulse is ANDed with the low impedance pulse dial shunt signal which overrides the 80mS sig-
nal when pulse dialing is enabled. The pulse dial shunt signal is included as a standard output pin in
most modem chipsets. This pin is activated when an ATDP command is issued to the modem.
Rev. 1
4
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Worldwide Sales Offices
CLARE LOCATIONS
EUROPE
ASIA PACIFIC
Clare Headquarters
78 Cherry Hill Drive
Beverly, MA 01915
Tel: 1-978-524-6700
Fax: 1-978-524-4900
Toll Free: 1-800-27-CLARE
European Headquarters
CP Clare nv
Bampslaan 17
B-3500 Hasselt (Belgium)
Tel: 32-11-300868
Fax: 32-11-300890
Asian Headquarters
Clare
Room N1016, Chia-Hsin, Bldg II,
10F, No. 96, Sec. 2
Chung Shan North Road
Taipei, Taiwan R.O.C.
Tel: 886-2-2523-6368
Fax: 886-2-2523-6369
Clare Micronix Division
145 Columbia
Aliso Viejo, CA 92656-1490
Tel: 1-949-831-4622
Fax: 1-949-831-4628
France
Clare France Sales
Lead Rep
99 route de Versailles
91160 Champlan
France
Tel: 33 1 69 79 93 50
Fax: 33 1 69 79 93 59
SALES OFFICES
AMERICAS
Germany
Clare Germany Sales
ActiveComp Electronic GmbH
Mitterstrasse 12
85077 Manching
Germany
Tel: 49 8459 3214 10
Fax: 49 8459 3214 29
Americas Headquarters
Clare
78 Cherry Hill Drive
Beverly, MA 01915
Tel: 1-978-524-6700
Fax: 1-978-524-4900
Toll Free: 1-800-27-CLARE
Italy
C.L.A.R.E.s.a.s.
Via C. Colombo 10/A
I-20066 Melzo (Milano)
Tel: 39-02-95737160
Fax: 39-02-95738829
Eastern Region
Clare
P.O. Box 856
Mahwah, NJ 07430
Tel: 1-201-236-0101
Fax: 1-201-236-8685
Toll Free: 1-800-27-CLARE
Sweden
Clare Sales
Comptronic AB
Box 167
S-16329 Spånga
Tel: 46-862-10370
Fax: 46-862-10371
Central Region
Clare Canada Ltd.
3425 Harvester Road, Suite 202
Burlington, Ontario L7N 3N1
Tel: 1-905-333-9066
Fax: 1-905-333-1824
http://www.clare.com
United Kingdom
Clare UK Sales
Marco Polo House
Cook Way
Bindon Road
Taunton
UK-Somerset TA2 6BG
Tel: 44-1-823 352541
Fax: 44-1-823 352797
Western Region
Clare
1852 West 11th Street, #348
Tracy, CA 95376
Tel: 1-209-832-4367
Fax: 1-209-832-4732
Toll Free: 1-800-27-CLARE
Clare cannot assume responsibility for use of any circuitry other
than circuitry entirely embodied in this Clare product. No circuit
patent licenses nor indemnity are expressed or implied. Clare
reserves the right to change the specification and circuitry, with-
out notice at any time. The products described in this document
are not intended for use in medical implantation or other direct life
support applications where malfunction may result in direct phys-
ical harm, injury or death to a person.
Canada
Clare Canada Ltd.
3425 Harvester Road, Suite 202
Burlington, Ontario L7N 3N1
Tel: 1-905-333-9066
Fax: 1-905-333-1824
Specification: DS-CYG23XX-R1
©Copyright 2000, Clare, Inc.
All rights reserved. Printed in USA.
1/12/01
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