P5056 [ETAL]
LOW DISTORTION LINE MATCHING TRANSFORMER; 低失真线路匹配变压器
| 型号： | P5056 |
| 厂家： | 
ETAL Group |
| 描述： | LOW DISTORTION LINE MATCHING TRANSFORMER |
| 文件： | 总5页 (文件大小：122K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PRODUCT DATA SHEET
LOW DISTORTION
LINE MATCHING TRANSFORMER
P5056
Features
Applications
∗ Lead-free (Pb-free)
∗ RoHS compliant
∗ V.90 and V.92 Modems
∗ V.34 Modems
∗ Low Distortion
∗ Fax Machines
∗ Instrumentation
∗ Set Top Box/Web browsing
∗ Internet Feature Phones
∗ 11mm (0.43”) Seated Height
∗ Industry Standard Pinout
∗ IEC 60950 and UL 60950 Certified
∗ UL Recognized Component
∗ Extended Frequency Response
∗ Flat TX and RX Responses
∗ Simple Matching
∗ Low Insertion Loss
∗ High Thermal Stability
DESCRIPTION
P5056 is intended for low cost V.90 and V.92
P5056 also exhibits stable characteristics over its
full operating temperature range to maximize
data throughput under varying environmental
conditions without the need for modem
retraining.
(56kbps)
modems
and
other
high-speed
applications where low distortion at moderate
power levels and very low voiceband frequencies is
required.
P5056 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 2002/97/EC, and suitable for lead-free
and conventional processing.
P5056 is certified to IEC 60950 and UL 60950.
P5056 is a UL Recognized Component and is
supported by an IEC CB certificate.
P5056 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.
Patented
ETALDOC 776/5
Page 1 of 5
June 2005
P5056
SPECIFICATIONS
Electrical
At T = 25ºC and as circuit Fig. 2 unless otherwise stated.
Parameter
Conditions
Min
-
Typ
1.6
Max
-
Units
dB
Insertion Loss
f = 2kHz, RL = 600Ω
Frequency Response
LF -3dB cutoff
HF -3dB cutoff
100Hz – 4kHz
-
-
-
10
60
-
-
-
Hz
kHz
dB
±0.1
Return Loss(5)
200Hz – 4kHz
200Hz – 4kHz
20
-
-
-
-
dB
dB
Transhybrid Loss(5)
20
Third Harmonic
Distortion(1)
150Hz -3dBm in line
200Hz -10dBm in line
-
-
-68
-89
-
-
dBm
dBm
Balance
DC – 5kHz
80
-
-
dB
Method TG 25
Voltage Isolation(2)
50Hz
DC
2.12
3.0
-
-
-
-
kVrms
kV
Operating Range:
Functional
Storage
0
-40
-
-
+70
+85
ºC
ºC
Lumped equivalent circuit parameters as Fig. 1
DC resistance (3)
Primary resistance RDCp
Secondary resistance RDCs
92
88
-
-
114
108
Ω
Ω
2.5
6
3.5
9
4.5
mH
H
Leakage inductance, ΔL
Shunt inductance, Lp(4)
Shunt loss, Rp
200Hz 10mV
200Hz 10mV
-
-
12
15
kΩ
Notes:
Equivalent Circuit
Fig . 1
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.
IDEAL
1:1
½
L
½
L
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 776/5
Page 2 of 5
June 2005
P5056
MATCHING RECOMMENDATIONS
The following recommendations start with the simplest implementations and progress to enhanced
performance utilizing an additional component. 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
European CTR21/(Australia, etc.)
Ω
600
Fi g . 3
Fig . 2
150nF
(120nF)
100nF*
910
270
(220)
22μ
F
22μF
600
510
82
TXA1
RXA
TXA1
RXA
750
(820)
LINE
LINE
TXA2
TXA2
*Note: 100nF capacitor should have
a temperature stable dielectric
Improved matching
Ω
European CTR21/(Australia, etc.)
600
Fi g . 5
Fig . 4
150nF
(120nF)
100nF*
820
270
(220)
22μF
600
22μF
510
82
TXA1
RXA
TXA1
RXA
750
(820)
LINE
10nF
10nF
LINE
TXA2
TXA2
*Note: 100nF capacitor should have
a temperature stable dielectric
Patented
ETALDOC 776/5
Page 3 of 5
June 2005
P5056
SAFETY
CERTIFICATION
Constructed in accordance with IEC 60950-1,
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, 2.9.3,
2.9.4, 2.9.5, 2.10, 2.10.1, 2.10.2, 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, 4.7, 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 300Vrms
and a maximum operating temperature of +85ºC
EN 60950-1
and
UL 60950,
supplementary
insulation for a primary circuit, 250Vrms maximum
working voltage, flammability class V-1.
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/UL60950-1, First Edition, based on
IEC 60950-1, First Edition, maximum working
voltage
250Vrms,
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.
CONSTRUCTION
IDENT
Connections
Dimensions
Fig 6
e
2
Pin Ø
0.70mm (0.028) max
Finish: SnAg overNi barrier. JESD97 category = e2.
NOTES:
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 5.1g.
Patented
ETALDOC 776/5
Page 4 of 5
June 2005
P5056
ABSOLUTE MAXIMUM RATINGS
INTELLECTUAL PROPERTY RIGHTS
ETAL and P5056 are Trade Marks of Profec
Technologies Ltd.
(Ratings of components independent of circuit).
The Trade Mark ETAL is registered at the UK
Trade Marks Registry.
Short term isolation voltage (1s)
2.12kVrms,
3.0 kVDC
100μA
-40ºC to
+85ºC
DC current
Storage temperature
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.
Lead temperature, 10s
260ºC
P5056 design and construction are protected by
patents.
British Patent No. 2333646.
US Patent Nos. 6,344,787; 6,690,254.
European Patent No. 1082734
China Patent No. ZL 99806739.3
Other patents 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 776/5
Page 5 of 5
June 2005
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