PRODUCT DATA SHEET
LOW DISTORTION
LINE MATCHING TRANSFORMER
Features
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Lead-free (Pb-free)
RoHS compliant
Low Distortion
10.4mm (0.41”) Seated Height
Industry Standard Pinout
IEC 60950 and UL 60950 Certified
Supplementary Insulation for a Primary
Circuit
Extended Frequency Response
Flat TX and RX Responses
Simple Matching
Low Insertion Loss
High Thermal Stability
P5233
Applications
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V.90 and V.92 Modems
V.34 Modems
Fax Machines
Instrumentation
Set Top Box/Web browsing
Internet Feature Phones
DESCRIPTION
P5233 is intended for low cost V.90 and V.92
(56kbps)
modems
and
other
high-speed
applications. It is a direct substitute for P3356,
being mechanically compatible and having identical
signal/distortion and matching characteristics, and
suitable for supplementary insulation, 250V
working.
P5233 uses patented design and construction
methods to achieve excellent signal performance
and safety isolation to international standards.
P5233 has exceptionally flat frequency response
from 30Hz to 10kHz, a 3dB bandwidth of 60kHz
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.
P5233 is certified to IEC 60950 and UL 60950.
P5233 is a UL Recognized Component and is
supported by an IEC CB certificate. The part is
completely lead-free, compliant with RoHS
Directive 2002/95/EC, and suitable for lead-free
and conventional processing.
Patented
ETALDOC 838/4
Page 1 of 6
June 2005
P5233
SPECIFICATIONS
Electrical
At T = 25ºC and as circuit Fig. 2 unless otherwise stated.
Parameter
Conditions
Insertion Loss
Frequency Response
f = 2kHz, R
L
= 600Ω
LF -3dB cutoff
HF -3dB cutoff
100Hz – 4kHz
200Hz – 4kHz
200Hz – 4kHz
150Hz -3dBm in line
200Hz -10dBm in line
DC – 5kHz
Method TG 25
50Hz
DC
Min
-
-
-
-
16
-
-
-
80
2.12
3.0
0
-40
Typ
1.5
10
60
-
-
20
-70
-89
-
-
-
-
-
Max
-
-
-
±0.1
-
-
-
-
-
-
-
+70
+85
Units
dB
Hz
kHz
dB
dB
dB
dBm
dBm
dB
kVrms
kV
ºC
ºC
Return Loss
(5)
Transhybrid Loss
(5)
Third Harmonic
Distortion
(1)
Balance
Voltage Isolation
(2)
Operating Range:
Functional
Storage
Lumped equivalent circuit parameters as Fig. 1
DC resistance
(3)(6)
Leakage inductance,
ΔL
Shunt inductance, Lp
(4)
Shunt loss, Rp
200Hz 10mV
200Hz 10mV
Primary resistance R
DCp
Secondary resistance R
DCs
84
81
2.2
6
12
-
-
-
9
15
107
100
5
-
-
Ω
Ω
mH
H
kΩ
Notes:
Equivalent Circuit
1. Third harmonic typically exceeds other
Fig. 1
harmonics by 10dB.
2. Components are 100% tested at 3.25kVDC.
3. Caution: do not pass DC through windings.
IDEAL
Telephone line current must be diverted using
½ L
½ L
1:1
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.
6. At signal frequencies, the primary and secondary resistance appear in series with the load and therefore
present a sum of resistances in the range 165-207Ω in common with P3356.
ETALDOC 838/4
Page 2 of 6
June 2005
P5233
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
Fig. 2
600
22
μ
F
560
European CT
R21/(Australia, etc.)
F 3
ig.
270
(220)
150nF
(120nF)
22
μ
F
750
(820)
100
820
100nF*
T
XA1
R
XA
T
XA2
T
XA1
R
XA
T
XA2
LINE
LINE
* Note: 100nF capacitor should have a temperature stable dielec tric
Insertion Loss: 1.8dB @ 2kHz
Frequency Response : ±0.2dB 30Hz – 10kHz
Return Loss: 16dB 200Hz – 4kHz
Transhybrid Loss: 22dB 200Hz – 4kHz
Insertion Loss: 1.0dB @ 2kHz
Frequency Response : ±0.5dB 50Hz – 4kHz
Return Loss: 18dB 200Hz – 4kHz
Transhybrid Loss: 14dB 200Hz – 4kHz
Improved matching
600Ω
Fig. 4
600
22
μ
F
560
European CT
R21/(Australia, etc.)
F 5
ig.
270
(220)
150nF
(120nF)
100nF*
120
750
10nF
22
μ
F
T
XA1
R
XA
T
XA2
750
(820)
T
XA1
R
XA
T
XA2
LINE
10nF
LINE
* 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 838/4
Page 3 of 6
June 2005
P5233
Improved matching and hybrid
600Ω
Fig. 6
600
22
μ
F
1k
560
European CT
R21/(Australia, etc.)
F 7
ig.
270
(220)
150nF
(120nF)
22
μ
F
1k
10nF
10k
100nF*
120
750
1nF
T
XA1
R
XA
T
XA1
R
XA
T
XA2
LINE
10nF
10k
1nF
750
(820)
LINE
T
XA2
* 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
600
Ω
Instrumentation
Insertion Loss (Line to RXA): 2.2dB @ 2kHz
Frequency Response : ±0.5dB 50Hz – 4kHz
Return Loss: 20dB 200Hz – 4kHz
Transhybrid Loss: 18dB 200Hz – 4kHz
600
Ω
Fig. 8
47
μ
F*
47
μ
F*
6.8nF
600
Ω
6.8nF
600
Ω
* If no DC block required, one of these c apac itors can be removed and
the other set to 22
μ
F or, if preferred, both capa citors c an be eliminated.
,
Insertion Loss: 1.5dB @ 2kHz
Frequency Response : ±0.2dB 20Hz – 20kHz
Return Loss: 16dB 20Hz – 20kHz
Patented
ETALDOC 838/4
Page 4 of 6
June 2005
P5233
SAFETY
Constructed in accordance with IEC 60950-1,
EN 60950-1, and UL 60950-1, supplementary
insulation for a primary circuit, 250Vrms maximum
working voltage, flammability class V-1.
Components should be installed in such a way that
the core is separated from accessible conductive
parts by a creepage of 2.5mm, clearance of 2mm,
or by solid insulation of minimum thickness 0.4mm,
or by appropriate thin film.
CERTIFICATION
Certified under the IEC CB scheme (Certificate
GB597W) to IEC 60950 Third Edition 1999 sub-
clauses 1.5, 1.5.1, 1.5.2, 2.9, 2.9.1, 2.9.2, 2.9.4,
2.9.5, 2.10, 2.10.1, 2.10.3, 2.10.3.1, 2.10.3.2,
2.10.4, 2.10.5, 2.10.5.1, 2.10.5.2, 2.10.5.4, 4.5.2,
4.7, 4.7.3, 4.7.3.1, 4.7.3.4, (Flammability Class
V-1) ,5.2, 5.2.1, and 5.2.2 for a maximum
working voltage of 250Vrms, nominal mains
supply voltage not exceeding 250Vrms and a
maximum operating temperature of +85ºC in
Pollution Degree 2 environment, supplementary
insulation for a primary circuit.
Recognized under the Component Recognition
Program of Underwriters Laboratories Inc. to US and
Canadian
requirements
CAN/CSA
C22.2
No. 60950-1-03/UL 60950-1, First Edition, based on
IEC 60950-1, First Edition, maximum working
voltage
250Vrms,
Pollution
Degree
2,
supplementary insulation.
Patented
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.
CONSTRUCTION
Connections
4
6
Dimensions
Fig 9
e
2
3
PIP
16,5 m ax
(0.65 max)
10,4 m ax
(0.41 max)
A
4
6
1
3
3
4
1
6
17,5 m ax
(0.69 max)
1
Pin Ø
0.70mm (0.028) max
Finish: S
nAg over Ni barrier. JES
D97 c ategory = e2.
NOT S:
E
Dimension “A” : 3.0 to 3.5mm (0.118 - 0.138)
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 4.8g.
ETALDOC 838/4
Page 5 of 6
June 2005
Industrial Control Electronics
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