ETAL P3801

PRODUCT DATA SHEET
LOW DISTORTION
LINE MATCHING TRANSFORMER
Features
Applications
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗ V.90 and V.92 modems
∗ V.34 modems
Lead-free (Pb-free)
RoHS compliant
Low distortion
Environmentally tested to IEC 68
CERT reliability tested
12.6mm (0.5") seated height
Industry Standard Pinout
Extended Frequency Response
IEC 60950 and UL 1950 Certified
UL Recognized Component
High thermal stability
P3801
DESCRIPTION
P3801 is intended for high-speed applications where
low distortion at moderate power levels and very low
voiceband frequencies is required at the most
competitive price. At moderate power levels
(e.g. -10dBm) performance to V.90/V.92 may be
achieved.
P3801 uses patented design and construction
methods to achieve excellent signal performance
and safety isolation to international standards. The
part is completely lead-free, compliant with RoHS
Directive 2002/95/EC, and suitable for lead-free and
conventional processing.
P3801 has extended flat frequency response from
30Hz to 4kHz with very low levels of signal distortion
at signal frequencies as low as 150Hz.
P3801 is certified to IEC 60950 and UL 60950.
P3801 is a UL Recognized Component and is
supported by an IEC CB Test Certificate.
P3801 is electrically and mechanically compatible
with P3034 and P2001 for supplementary
insulation 250V working applications, and directly
replaces 9002VF, 671-8236M, MTLM 2001,
EMIT-2001, and ATS-091/B without changes to
matching components, but with the added benefit
of considerably improved thermal stability. P3801
also offers a drop-in performance upgrade path for
P3800 and P1200.
P3801 is a rugged lightweight design that 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.
Patented
ETALDOC 711/8
Page 1 of 5
April 2005
P3801
SPECIFICATIONS
Electrical
At T = 25ºC and as circuit fig. 2 unless otherwise stated.
Parameter
Insertion Loss
Conditions
Min
-
Typ
-
Max
1.5
Units
dB
Frequency response
200Hz - 4kHz
-
-
±0.2
dB
Return Loss
200Hz - 4kHz
18
-
-
dB
Third Harmonic
Distortion (1)
150Hz - 10dBm
600Hz - 10dBm
-
-90
-100
-
dBm
dBm
Voltage
isolation (2)
50Hz
DC
2.12
3.0
-
-
kVrms
kV
Operating range:
Functional
Storage
Ambient temperature
0
-40
-
+70
+85
120
-
148
Ω
16
-
19.5
mH
f = 2kHz, RL = 560Ω
ºC
ºC
Lumped equivalent circuit parameters as Fig. 1
DC resistance, RDC (3)
Sum of windings
Leakage inductance ΔL
Shunt inductance Lp (4)
10mV 200Hz
6
-
-
H
Shunt loss Rp (4)
10mV 200Hz
12
-
-
kΩ
Notes
Equivalent Circuit
1. Third harmonic typically exceeds other
harmonics by 20dB.
2. Components are 100% tested at 3.25kV DC.
3. Caution: do not pass DC through windings.
Telephone line current, etc. must be diverted
using choke or semiconductor line hold
circuit.
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.
Fig. 1
½ L ½R
½R
½ L
IDEAL
1:1
Patented
ETALDOC 711/8
Page 2 of 5
April 2005
P3801
MATCHING RECOMMENDATIONS
600Ω MATCH
EUROPEAN CTR21 COMPLEX MATCH
Recommended Circ uit
Recommended Circ uit
Fig. 2
Fig. 3
600
+ 50%
6.8μF _ 20% *
150nF
270
27nF
+_ 5%
LINE
33nF
+_ 5%
560
+_ 2%
750
2.2μF
(150nF)
100nF
56nF
750
(680)
150
(220)
LINE
* If return loss > 16dB, 300Hz - 4kHz is ac ceptable, bloc king
capacitor may be relaxed to 4.7μF +_ 50%
20%
Figure 3 gives flat RX and TX responses against the
CTR21 complex reference impedance (typically
around ±0.5dB 300Hz - 3.4kHz). Return loss is
typically better than 20dB. The circuit values in
parentheses give optimum flatness at a small
sacrifice in return loss.
For circuits with existing board drillings, figure 4
gives good return loss (>20dB) and RX flatness
against the CTR21 complex reference impedance,
but TX flatness is degraded by the use of this
topology.
Fig. 4
150nF
270
750
LINE
2.2μF
68nF
330
27nF
820
CONSTRUCTION
Dimensions
Connections
e2
Dimensions shown are in millimetres (inches).
Geometric centres of outline and pin grid coincide within a tolerance circle of 0.6mm
Windings may be used interchangeably as primary or secondary.
ETALDOC 711/8
Page 3 of 5
April 2005
P3801
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 711/8
Page 4 of 5
April 2005
P3801
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.
(Ratings of components independent of circuit).
Short term isolation voltage (1s)
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.
DC current
Storage temperature
Lead temperature, 10s
CERTIFICATION
2.12kVrms
3.0kVDC
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
250Vrms, Pollution Degree 2, supplementary
insulation.
ETAL, P1200, P2001, P3034, P3800 and P3801
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.
P3189 design and construction are protected by
patents and registered design.
UK Registered Design No. 2077360.
US Patent No. 6,690,254
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.
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.
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: [email protected]
ETALDOC 711/8
Page 5 of 5
ISO 9001
FM 25326
April 2005