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CYG2217

DS-CYG2217-R1

Clare's CybergateTM CYG2217 DAA module provides a
complete telephone line interface circuit, including 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 pro-
vides 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 provid-
ing 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

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

CYBERGATETM

Ordering Information

Part #

Description

CYG2217

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

Handling and Assembly Recommendations
The CYG2217 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.

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CYG2217

Rev. 1

Electrical Characteristics

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.

Absolute Maximum Ratings (@ 25° C)

Parameter

Conditions

Min

Typ

Max

Units

DC Electrical Characteristics

On-Hook Impedance

@100V V

across pins 1,2

2,1 (R,T) per FCC 68.312

Off-Hook Line Leakage Current

@100V V

across pins 1,2

µA

2,1 (R,T) per FCC 68.312
Power Supply Current @ VCC

=5V

Hookswitch Control Current @ (OH)

=2.4V

3.5

4.1

5.0

=5.0V

11.8

12.4

Hookswitch Control Voltage

Off-Hook

2.0

3.0

On-Hook

0.2

0.5

AC Signal Path Electrical Characteristics
Return Loss

600

, 1800Hz

Insertion Loss

600

, 1800Hz

Transmit

Test Circuit 1

6.0

6.5

Receive

Test Circuit 2

-1.0

+1.0

Frequency Response

300-3500Hz

-0.25

+0.25

Longitudinal Balance

On-Hook

Per FCC 68.310

Off-Hook

Per FCC 68.310

Transhybrid Loss

600

, 1800Hz

-32

-10

Total Harmonic Distortion

600

, 1800Hz

-80

DC Loop Current

120

Ring Detection Circuit Characteristics

Ringing Voltage Detection Range

150

RMS

Ringing Frequency Detection Range

Ringer Equivalence Number

0.8B

RING (Pin 5) Output Voltage (Pulsed)

=+5V

Logic `0', Ring present

0.8

Logic `1', Ring not present

Surge and Isolation Characteristics

Surge Protection Voltage Tip and Ring

(Pins 1,2)

300

Isolation Voltage

(Pins 18,17,16,15,14,5,4,to1,2)

Per FCC 68.302

1000

RMS

Parameter

Min

Typ

Max Units

Isolation Voltage

1000 V

RMS

Operational Temperature

°C

Storage Temperature

100

°C

Relative Humidity

(Non-Condensing)

Soldering Temperature

260

°C

Tip/Ring Load Current

(continuous)

120

Hookswitch LED Drive

Current

Hookswitch LED Reverse

Voltage

Ring Detect Phototransistor

Voltage V

Derate Linearly 1.33 mw / oC

Derate Linearly 3.67 mw / oC

CYG2217

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Rev. 1

Test Circuits

TIP

RING

+5V

600

BATT

ÐV

BATT

10H

600

RCV

GND

XMIT+

LOOP

Source

1. CYG2217 Transmit Insertion Loss

Log

= 20

Transmit Insertion Loss =

TIP

RING

+5V

RCV

GND

XMIT+

BATT

ÐV

BATT

10H

600

10H

LOOP

Source

2. CYG2217 Receive Insertion Loss

Log

= 20

Receive Insertion Loss =

+5V

Package Pinout

GND

XMIT+

RCV

TIP

RING

CYG22XX

CYG2217 Pinouts & Definitions

PIN# Name

Function

TIP

Connection to telephone line Tip connected through an
external fuse.

RING

Connection to telephone line Ring conductor.

Driving this pin high asserts the off-hook condition. The
hookswitch LED is current limited by an internal 300

resis-

tor.

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.

RCV

Provides the analog output signal from the 2-4 wire convert-
er of the CYG2217. 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 CYG2217. Typically +5V, V

should

not exceed 20V.

XMIT+

Provides the analog intput signal from the 2-4 wire converter
of the CYG2217. XMIT+ uses a 2.5 volt reference signal and
therefore must be capacitively coupled to host equipment
which uses a ground reference.

GND

Connection to host system ground.

CYG2217

CLARE LOCATIONS

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Tel: 1-978-524-6700
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Aliso Viejo, CA 92656-1490
Tel: 1-949-831-4622
Fax: 1-949-831-4628

SALES OFFICES

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Tracy, CA 95376
Tel: 1-209-832-4367
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Tel: 1-905-333-9066
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EUROPE

European Headquarters
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Tel: 32-11-300868
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France
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Lead Rep
99 route de Versailles
91160 Champlan
France
Tel: 33 1 69 79 93 50
Fax: 33 1 69 79 93 59

Germany
Clare Germany Sales
ActiveComp Electronic GmbH
Mitterstrasse 12
85077 Manching
Germany
Tel: 49 8459 3214 10
Fax: 49 8459 3214 29

Italy
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Via C. Colombo 10/A
I-20066 Melzo (Milano)
Tel: 39-02-95737160
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Box 167
S-16329 Spånga
Tel: 46-862-10370
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Taunton
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ASIA PACIFIC

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Worldwide Sales Offices

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.

Part Number CYG2217