ETAL P3324

PRODUCT DATA SHEET
LINE MATCHING TRANSFORMER
Features
Applications
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Lead-free (Pb-free)
RoHS compliant
12.6mm (0.5”) Seated Height
Industry Standard Pinout
IEC 60950 and UL 60950 Certified
UL Recognized Component
Environmentally tested to IEC 68
CERT reliability tested
Extended Frequency Response
Flat TX and RX Responses
Simple Matching
Low Insertion Loss
High Thermal Stability
P3324
Voice
V.22bis Modems
Set Top Boxes
Least Cost Routers
Instrumentation
DESCRIPTION
P3324 is intended for low speed data and voice
applications where good distortion at moderate
power levels is required at a most competitive
price.
P3324 uses patented design and construction
methods to achieve excellent signal performance
and safety isolation to international standards
making it the component of choice for voice and
low speed data applications throughout the world.
P3324 is certified to IEC 60950 and UL60950.
P3324 is a UL Recognized Component, and is
supported by an IEC CB Test Certificate. The part
is completely lead-free, compliant with RoHS
Directive 2002/95/EC, and suitable for lead-free
and conventional processing.
P3324 is a rugged lightweight design that
exhibits stable characteristics over its full
operating temperature range to maximize data
throughput
under
varying
environmental
conditions without the need for modem
retraining.
P3324 has been subjected to relevant
environmental testing according to IEC 68 and
Combined Environmental Reliability Testing
(CERT) beyond normal operational levels and
passed all tests, remaining fully functional.
P3324 has exceptionally flat frequency response
from 100Hz to 10kHz, a 3dB bandwidth of over
50kHz and requires only the very simplest of
matching to achieve good return loss and
transhybrid loss across the voiceband, with low
levels of signal distortion at signal frequencies as
low as 200Hz.
Patented
ETALDOC 597/8
Page 1 of 6
April 2005
P3324
SPECIFICATIONS
Electrical
At T = 25ºC and as circuit Fig. 2 unless otherwise stated.
Parameter
Conditions
Min
Typ
Max
Units
Insertion Loss
f = 2kHz, RL = 600Ω
-
1.8
-
dB
Frequency Response
LF -3dB cutoff
HF -3dB cutoff
200Hz – 4kHz
-
30
55
-
±0.1
Hz
kHz
dB
Return Loss(5)
200Hz – 4kHz
16
-
-
dB
Transhybrid Loss(5)
200Hz – 4kHz
20
-
-
dB
Third Harmonic
Distortion(1)
450Hz -10dBm in line
200Hz -10dBm in line
-
-86
-79
-
dBm
dBm
Voltage Isolation(2)
50Hz
DC
2.12
3.0
-
-
kVrms
kV
0
-40
-
+70
+85
ºC
ºC
70
95
-
87
120
Ω
Ω
3
3.8
5
mH
Operating Range:
Functional
Storage
Lumped equivalent circuit parameters as Fig. 1
DC resistance (3)
Primary resistance RDCp
Secondary resistance RDCs
Leakage inductance, ΔL
Shunt inductance, Lp(4)
200Hz 10mV
3
4
-
H
Shunt loss, Rp
200Hz 10mV
6
8
-
kΩ
Notes:
1. Third harmonic typically exceeds other
harmonics by 10dB.
2. Components are 100% tested at 3.25kVDC.
3. Caution: do not pass DC through windings.
Telephone line current must be diverted using
semiconductor line hold circuit or choke.
4. At signal levels greater than 100mV, Lp will
increase and Rp will decrease slightly but the
effect is usually favourable to the return loss
characteristic.
5. Return loss and transhybrid loss can be
improved to 30dB in improved matching circuit.
The values shown relate to the simplest
configuration, Fig. 2.
ETALDOC 597/8
Equivalent Circuit
Fig. 1
Page 2 of 6
½ L
½ L
IDEAL
1:1
April 2005
P3324
MATCHING RECOMMENDATIONS
The following recommendations start with the simplest implementations and progress to enhanced
performance utilizing additional components. Good performance is achieved even with the simplest
configurations. The implementations assume a low impedance balanced TX drive and a relatively high
impedance RX input, as is commonly available, though use with other TX/RX arrangements is
straightforward. Note that there are no changes to components on the line side, or in the hybrid, whether
600Ω or complex reference impedance selected, thus assisting country configuration. For complex
impedance, the matching circuits derived are suitable for reference impedances of the type 270 +
750//150nF e.g. European CTR21 and 220 + 820//120nF (or 115nF) e.g. Australia, South Africa, etc., and
yield similar performance characteristics. For other impedances, please contact Profec Technologies.
Minimum Cost Implementations
600Ω
Complex European CTR21/(Australia, etc .)
Fig. 2
Fig. 3
4.7μF
600
270
(220)
560
150nF
(120nF)
100nF*
+
4.7μ F
100
TXA1
TXA1
820
750
(820)
RXA
LINE
RXA
LINE
TXA2
TXA2
* Note: 100nF capacitor should have a temperature stable dielec tric
+ Note: 2.2 μ F c apac itor may be acc eptable
Insertion Loss: 1.3dB @ 2kHz
Frequency Response : ±0.5dB 200Hz – 4kHz
Return Loss: 18dB 200Hz – 4kHz
Transhybrid Loss: 14dB 200Hz – 4kHz
Insertion Loss: 2.2dB @ 2kHz
Frequency Response : ±0.1dB 200Hz – 10kHz
Return Loss: 18dB 200Hz – 4kHz
Transhybrid Loss: 22dB 200Hz – 4kHz
Improved matching and hybrid
600Ω
Complex European CTR21/(Australia, etc .)
Fig. 4
Fig. 5
600
4.7μ F
560
270
(220)
TXA1
1k
LINE
750
(820)
RXA
10nF
10k
150nF
(120nF)
1nF
LINE
100nF*
+
4.7μ F
120
1k
10nF
10k
TXA1
750
RXA
1nF
TXA2
TXA2
* Note: 100nF capacitor should have a temperature stable dielec tric
+ Note: 2.2 μ F capac itor may be ac ceptable
Insertion Loss (Line to RXA): 2.5dB @ 2kHz
Frequency Response : ±0.5dB 200Hz – 4kHz
Return Loss: 20dB 200Hz – 4kHz
Transhybrid Loss: 18dB 200Hz – 4kHz
Insertion Loss (Line to RXA): 3.2dB @ 2kHz
Frequency Response : ±0.1dB 200Hz – 10kHz
Return Loss: 20dB 200Hz – 4kHz
Transhybrid Loss: 30dB 200Hz – 10kHz
Patented
ETALDOC 597/8
Page 3 of 6
April 2005
P3324
600Ω Instrumentation
600Ω
Fig. 6
47μF*
6.8nF
600Ω
47μ F*
6.8nF
600Ω
* If no DC bloc k required, one of these capacitors c an be removed and
the other set to 22μ F, or, if preferred, both capa c itors c an be eliminated.
Insertion Loss: 1.8dB @ 2kHz
Frequency Response : ±0.2dB 50Hz – 20kHz
Return Loss: 16dB 20Hz – 20kHz
CONSTRUCTION
Connections
Dimensions
e2
Dimensions shown are in millimetres (inches).
Geometric centres of outline and pin grid coincide within a tolerance circle of 0.6mmØ.
Windings may be used interchangeably as primary or secondary.
Total weight typically 5.2g.
ETALDOC 597/8
Page 4 of 6
April 2005
P3324
ENVIRONMENTAL TESTING
Reliability testing to IEC 68
Tested to clauses of IEC 68 and compliant with all functional and safety requirements following exposure as follows:
Test description IEC 68 reference
Test details
Result
Robustness of
terminations
68-2-21 Test Ua1
68-2-21 Test Ua2
Tensile 5N pull
Thrust 1N push
No impairment
No pin detachment or distortion
Solderability
68-2-20 Test Ta Method 1
Solder bath 235ºC 2s
Resistance to
soldering heat
68-2-20 Test Tb Method 1A Solder bath 260ºC 10s
68-2-20 Test Tb Method 2 Soldering iron 350ºC 5s
No impairment
Finish smooth, bright and even
Vibration
68-2-6 Test Fc
Sweep 10-55-10Hz in 1 minute
Amplitude 1.5mm pk-pk
Duration 2h per axis, 3 axes
Shock
68-2-27 Test Ea
No impairment
Peak acceleration 1000m/s2
Duration of pulse 6ms
3 shocks each direction on 3 axes
Cold
68-2-1 Test Ab
-25ºC 16h
Recovery to ambient 1-2h
No impairment
Dry heat
68-2-2 Test Bb
125ºC 16h
Recovery to ambient 1-2h
No impairment
Damp heat
68-2-3 Test Ca
40ºC 4 days, RH 93%
Recovery to ambient 1-2h
No impairment
Change of
temperature
68-2-14 Test Na
TA –25ºC
TB +85ºC
t1 30 min
2 min ≤t2≤3 min
Recovery to ambient 1-2h
5 cycles
No impairment
No impairment
Combined Environmental Reliability Testing (CERT)
Components step stressed at increasing levels of severity using combined stresses to detect potential
weaknesses.
Results are shown for highest levels of stress tested. Compliant with all functional and safety tests following
exposure as follows:
Test description
Test details
Duration
Result
Storage Test
Thermal cycling -30ºC to +100ºC at
11ºC/min
6mm pk 2-9Hz at 1 octave/min
20m/s2 9-200Hz
20 mins per
plane
No impairment
Transportation Test
Thermal cycling -65ºC to +80ºC
Random vibration 10-200Hz and
200-2000Hz at 57m/s2 RMS
2 hours per
plane
No impairment
ETALDOC 597/8
Page 5 of 6
April 2005
P3324
SAFETY
ABSOLUTE MAXIMUM RATINGS
Constructed in accordance with IEC 60950-1,
EN 60950-1, and UL 60950-1, supplementary
insulation, 250Vrms maximum working voltage,
flammability class V-0.
There are no special installation requirements
(beyond attending to usual PCB track separations)
since the integral cover provides supplementary
insulation from its external faces to internal core
and windings.
CERTIFICATION
(Ratings of components independent of circuit).
Short term isolation voltage (1s)
DC current
Storage temperature
Lead temperature, 10s
2.12kVrms,
3.0 kVDC
100μA
-40ºC to
+85ºC
260ºC
INTELLECTUAL PROPERTY RIGHTS
Certified under the IEC CB scheme (Certificate
DK-8570) to IEC 60950-1-2001, sub-clauses 1.5,
1.5.1, 1.5.2, 1.7.1, 2.9, 2.9.1, 2.9.2, 2.9.3, 2.10, 2.10.1,
2.10.2, 2.10.3, 2.10.3.1, 2.10.3.3, 2.10.4, 2.10.5,
2.10.5.1, 2.10.5.2, 2.10.5.4, 4.7, 4.7.1 (classV-1), 4.7.3,
4.7.3.1, 4.7.3.4, 5.2, 5.2.1, 5.2.2, 6.1.2.1 (Finland,
Norway, Sweden national deviations) for a maximum
working voltage of 250Vrms, nominal mains supply
voltage not exceeding 300Vrms and a maximum
operating temperature of 70ºC in Pollution Degree
2 environments.
Recognized under the Component Recognition
Program of Underwriters Laboratories Inc. to US and
Canadian
requirements
CAN/CSA
C22.2
No. 60950-1-03/UL60950-1, First Edition, based on
IEC 60950-1, First Edition, maximum working voltage
180Vrms (creepage), 420V peak (clearance), Pollution
Degree 2, supplementary insulation.
UL File number E203175.
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 P3324 are Trade Marks of Profec
Technologies Ltd.
The Trade Mark ETAL is 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.
P3324 design and construction are protected by
patents and registered design.
British Patent No. 2333646.
USA Patent Nos. 6, 344, 787; 6,690,254
European Patent No. 1082734
China Patent No. ZL 99806739.3
UK Registered Design No. 2077360.
French Registered Design No. 991512.
United States Registered Design 426, 815.
Mexico Registered Design 12143
Other patents and registered designs pending.
© 1998 - 2005 Profec Technologies Ltd.
Reproduction prohibited.
E203175
ISO 9001
FM 25326
ETAL Group Oy, Kuormatie 14, FIN-03101, Nummela
Telephone: +358 (0)20 7500 330
Fax: +358 (0)20 7500 333
Website: www.etalgroup.com
Email: etalgroup@egruppen.com
ETALDOC 597/8
Page 6 of 6
April 2005