ETALDOC 716/5

Page 1 of  4

January 2001

PRODUCT DATA SHEET

ISDN S

o 

INTERFACE MODULE

P3022

Features

∗

  S

o 

interface in a single module

∗

  2 transformers, quad choke and protection

∗

  Extremely small size - 11mm profile

∗

  ITU-T I.430 compliant: excellent pulse shape

∗

  Supplementary insulation

∗

  Vacuum encapsulated

∗

  IEC 950, EN 60950 and EN 41003 certified

∗

  CSA NRTL/C Certificate of Compliance

 
 

 

DESCRIPTION

P3022 is an integrated line interface module for the
S

O

 interface, containing all the necessary

components to interface the ISDN chipset directly to
the telephone line, including EMC quad choke and
overvoltage protection.

Designed for safety-critical applications, P3022
features high voltage isolation in a very small
through-pin package with a maximum seated height
of 11mm, ideally suited to high component density
packaging.

P3022 has signal transformers with 2:1CT ratio
suitable for 

Siemens PEB 2085, PEB 2086,

PSB 2186 and AMD AM 79C30A.

The safety system yields low leakage inductance
and coupling capacitance, giving excellent
transmission performance, enabling the P3022
comfortably to meet the ITU-T I.430 basic rate
requirements.

P3022 is certified to safety standards IEC 950,
EN 60950 and EN 41003 for supplementary
insulation, 250V working voltage.  P3022 is
supported by an IEC CB Test Certificate and a
CSA certificate of Compliance.

to Electronic Techniques

(Anglia) Limited

P3022

ETALDOC 716/5

Page 2 of 4

January 2001

SPECIFICATION

Electrical

At T = 25ºC.  The convention used in this datasheet is that 'primary' windings are on the line side and
'secondary' windings are on the IC side.

Parameter

Conditions

Min

Typ

Max

Units

Transformers:

Turns ratio

-

2.00

-

-

Primary Inductance

2kHz

100mV

10kHz

100mV

20kHz

100mV

23
23
22

44
33
31

-
-
-

mH
mH
mH

Primary DCR

-

3

-

Ω

Leakage Inductance
(referred to primary)

-

4

12

µH

Shunt Loss
(referred to primary)

2kHz

100mV

10kHz

100mV

-

20

6

-

-
-

k

Ω

k

Ω

Interwinding capacitance

-

25

-

pF

Quad Choke:

Inductance per winding

10kHz
100kHz
1MHz

-
-
-

5

3.8
2.5

-
-
-

mH
mH
mH

DCR per winding

-

0.8

-

Ω

Leakage inductance

-

500

-

nH

Interwinding Capacitance

-

20

-

pF

Module:

Voltage isolation

50Hz
DC

-
-

3.88

5.5

-
-

kVrms

kV

Operating range:
Functional
Storage

0

-40

-
-

+70

+125

ºC
ºC

Notes:

Pulse Shape:

  

Meets the requirements of

ITU-T I.430 with 50

Ω

 and 400

Ω

 loads.

Input Impedance:

   

Meets the requirements of I.430

over the range 2kHz to 1MHz

DC Imbalance: 

  

Meets the requirements of I.430 with

1mA of direct current imbalance in the centre-tapped
line windings.

P3022

ETALDOC 716/5

Page 3 of 4

January 2001

PIN-OUT AND INTERNAL CIRCUIT

DIMENSIONS

Dimensions are in millimetres (inches) - not to
scale.
Geometric centres of outline and pin grid coincide
within a tolerance circle of 0.6mmØ.

Please contact ETAL for variants having different
turns ratio, with/without choke,  overvoltage
protection, etc.

Fig 2  Dimensions

P3022

ETALDOC 716/5

Page 4 of 4

January 2001

SAFETY

ABSOLUTE MAXIMUM RATINGS

(Ratings of components independent of circuit).

Short term isolation voltage (2s)

4.6kVrms
6.5kVDC

DC current, primary terminals

100mA

Storage temperature

-40ºC to
+125ºC

Construction meets or exceeds requirements of
IEC 950:1991, EN 60950:1992 (BS7002:1992),
supplementary insulation, 250V maximum working
voltage, flammability class V-0.

Lead temperature, 10s

260ºC

CERTIFICATION

COPYRIGHT

Certified by BSI to IEC 950:1991/A4:1996 (IEC CB
Test Certificate No. GB541W) sub-clauses 2.2.2,
2.9.2, 2.9.3, 2.9.4, 2.9.6, 2.9.7, 4.4, 4.4.3.2 (class
V-0) and 5.3 for a maximum working voltage of
250Vrms, nominal mains supply voltage not
exceeding 300Vrms and a maximum operating
temperature of +70ºC in Pollution Degree 3
environment, supplementary insulation.

CAN/CSA C22.2 No.  950-95/UL1950, certified by
CSA, Third Edition, including revisions through to
revision date March 1, 1998, based on Fourth
Amendment of IEC 950, Second Edition, maximum
working voltage 250Vrms, Pollution Degree 2,
supplementary insulation.

CSA Certificate of Compliance 1107696 (Master
Contract 188107).

Additionally, Profec Technologies certifies all
transformers as providing voltage isolation of
2.12kVrms, 3kV DC minimum.   All shipments are
supported by a Certificate of Conformity to current
applicable safety standards.

ETAL, and P3022 are Trade Marks of Profec
Technologies Ltd.
The  Trade Mark and Service Mark ETAL are
registered at the UK Trade Marks Registry.

Profec Technologies Ltd. is the owner of the
design right under the Copyright Designs and
Patents Act 1988 and no rights or licences are
hereby granted or implied to any third party.

© 1997, 1999, 2000 Profec Technologies Ltd.
Reproduction prohibited.

T R A N S F O R M I N G    T H E         F U T U R E

Profec Technologies Ltd, 10 Betts Avenue, Martlesham Heath, Ipswich, IP5 3RH, England

                           Telephone: +44 (0) 1473 611422

Fax:  +44 (0) 1473 611919

Websites: www.etal.ltd.uk

www.profec.com

Email:

info@etal.ltd.uk

sales@profec.com

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