ETAL P3356

PRODUCT DATA SHEET
LOW DISTORTION
LINE MATCHING TRANSFORMER
Features
Applications
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Lead-free (Pb-free)
RoHS compliant
Low Distortion
12.6mm (0.5”) Seated Height
Industry Standard Pinout
IEC 60950 and UL 60950 Certified
UL Recognized Component
Demko certified to EN 60950
Environmentally tested to IEC 68
CERT reliability tested
Excellent Frequency Response
Simple Matching
High Thermal Stability
P3356
V.90 and V.92 Modems
V.34 Modems
Fax Machines
Instrumentation
DESCRIPTION
P3356 is intended for V.90 and V.92 (56kbps)
modems and other high-speed applications where
ultra-low distortion at moderate power levels and
very low voiceband frequencies is required at a
most competitive price.
P3356 uses patented design and construction
methods to achieve excellent signal performance
and safety isolation to international standards,
making it the component of choice for high-speed
data applications throughout the world. P3356 is
certified to IEC 60950, UL 60950 and EN 60950.
P3356 is a UL Recognized Component, and is
supported by IEC CB and Demko Certificates. The
part is completely lead-free, compliant with RoHS
Directive 2002/95/EC, and suitable for lead-free
and conventional processing.
P3356 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.
P3356 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.
P3356 has exceptionally flat frequency response
from 30Hz 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 very
low levels of signal distortion at signal frequencies
as low as 150Hz.
Patented
ETALDOC 591/11
Page 1 of 6
December 2005
P3356
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
-
1.5
-
dB
Frequency Response
LF -3dB cutoff
HF -3dB cutoff
100Hz – 4kHz
-
10
55
-
±0.1
Hz
kHz
dB
Return Loss(5)
200Hz – 4kHz
16
-
-
dB
200Hz – 4kHz
20
-
-
dB
-
-70
-89
-
dBm
dBm
2.12
3.0
-
-
kVrms
kV
0
-40
-
+70
+85
ºC
ºC
70
95
-
87
120
Ω
Ω
3
3.9
5
mH
Transhybrid Loss
(5)
Third Harmonic
Distortion(1)
150Hz -3dBm in line
200Hz -10dBm in line
Voltage Isolation(2)
50Hz
DC
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
6
9
-
H
Shunt loss, Rp
200Hz, 10mV
12
15
-
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 591/11
Equivalent Circuit
Page 2 of 6
Fig. 1
½ L
½ L
IDEAL
1:1
December 2005
P3356
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
European CTR21/(Australia, etc.)
Fig. 2
Fig. 3
600
22μF
560
270
(220)
100nF*
22μF
TXA1
100
750
(820)
RXA
LINE
150nF
(120nF)
TXA1
820
LINE
RXA
TXA2
TXA2
* Note: 100nF capacitor should have a temperature stable dielec tric
Insertion Loss: 1.0dB @ 2kHz
Frequency Response : ±0.5dB 50Hz – 4kHz
Return Loss: 18dB 200Hz – 4kHz
Transhybrid Loss: 14dB 200Hz – 4kHz
Insertion Loss: 1.8dB @ 2kHz
Frequency Response : ±0.2dB 30Hz – 10kHz
Return Loss: 16dB 200Hz – 4kHz
Transhybrid Loss: 22dB 200Hz – 4kHz
Improved matching
600Ω
European CTR21/(Australia, etc.)
Fig. 4
Fig. 5
600
LINE
22μF
10nF
560
270
(220)
150nF
(120nF)
22μF
TXA1
750
(820)
RXA
100nF*
120
TXA1
750
RXA
10nF
LINE
TXA2
TXA2
* Note: 100nF capacitor should have a temperature stable dielec tric
Insertion Loss: 1.8dB @ 2kHz
Frequency Response : ±0.2dB 30Hz – 10kHz
Return Loss: 18dB 200Hz – 4kHz
Transhybrid Loss: 22dB 50Hz – 10kHz
Insertion Loss: 1.0dB @ 2kHz
Frequency Response : ±0.5dB 50Hz – 4kHz
Return Loss: 20dB 200Hz – 4kHz
Transhybrid Loss: 16dB 50Hz – 4kHz
Patented
ETALDOC 591/11
Page 3 of 6
December 2005
P3356
Improved matching and hybrid
600Ω
European CTR21/(Australia, etc.)
Fig. 6
Fig. 7
22μF
600
560
270
(220)
TXA1
1k
LINE
750
(820)
RXA
10nF
1nF
10k
150nF
(120nF)
100nF*
22μF
120
1k
10nF
LINE
10k
TXA1
750
RXA
1nF
TXA2
TXA2
* Note: 100nF c apac itor should have a temperature stable dielectric
Insertion Loss (Line to RXA): 2.8dB @ 2kHz
Frequency Response : ±0.2dB 30Hz – 10kHz
Return Loss: 20dB 200Hz – 4kHz
Transhybrid Loss: 30dB 50Hz – 10kHz
Insertion Loss (Line to RXA): 2.2dB @ 2kHz
Frequency Response : ±0.5dB 50Hz – 4kHz
Return Loss: 20dB 200Hz – 4kHz
Transhybrid Loss: 18dB 200Hz – 4kHz
600Ω Instrumentation
CERTIFICATION
600Ω
Fig. 8
47μF*
6.8nF
600Ω
47μ F*
6.8nF
600Ω
* If no DC block required, one of these c apac itors can be removed and
the other set to 22μ F, or, if preferred, both capa citors c an be eliminated.
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.
Certified to EN 60950-1:2001 (Demko Certificate
140243-01).
Insertion Loss: 1.5dB @ 2kHz
Frequency Response : ±0.2dB 20Hz – 20kHz
Return Loss: 16dB 20Hz – 20kHz
SAFETY
Constructed in accordance with IEC 60950-1,
EN 60950-1, and UL 60950-1, supplementary
insulation, 250Vrms maximum working voltage,
flammability class V-0.
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.
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.
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.
Patented
ETALDOC 591/11
Page 4 of 6
December 2005
P3356
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 591/11
Page 5 of 6
December 2005
P3356
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 6.3g.
ABSOLUTE MAXIMUM RATINGS
INTELLECTUAL PROPERTY RIGHTS
(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
ETAL and P3356 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.
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
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 591/11
Page 6 of 6
ISO 9001
FM 25326
December 2005