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T1/E1/CEPT/ISDN-PRI TRANSFORMERS
Quad Port T1/E1 with 8 Transformers, 1500Vrms
Models matched to leading quad and dual
T1/E1/CEPT/ISDN-PRI transceivers
Crosstalk: -65dB or better
UL1950 recognized (some parts pending approval)
RoHS compliant versions available upon request
Electrical Specifications @ 25°C
Part
Number G
STD Temp. EXT Temp.
T1063 T1103
Turns Ratio A,B
(Pri:Sec ±2%)
Transmit Receive
1:1.36 1:1.36CT
OCL @ 25°C
(mH MIN) F
LL
(µH MAX)
CW/W
(pF MAX)
Package/
Schematic E
Transmit Receive Transmit Receive Transmit Receive
1.2 1.2 .6 .6 35 35 TOU/1
Primary Pins
Transmit
Receive
1-2, 6-7, 11-12, 16-17 38-36, 33-31, 28-26, 23-21
T1064 T1104
1:1.14 1:1.14CT 1.2
1.2
.6 .6
35 35 TOU/1
1-2, 6-7, 11-12, 16-17 38-36, 33-31, 28-26, 23-21
T1065 T1105 1:2CT 1:2CT 1.2 1.2 .8 .8 35 35 TOU/3 4-5, 9-10, 14-15, 19-20 24-25, 29-30, 34-35, 39-40
T1066 T1106 1:2 1:2CT 1.2 1.2 .6 .6 35 35 TOU/4 1-2, 9-10, 11-12, 19-20 23-25, 26-28, 33-35, 36-38
T1067 T1107 1:1.36CT 1:2CT 1.2 1.2 .6 .6 35 35 TOU/3 24-25, 29-30, 34-35, 39-40 4-5, 9-10, 14-15, 19-20
T1068 T1108 1:2CT 1:1CT 1.2 1.2
.6 .6
35 35 TOU/2
1-2, 6-7, 11-12, 16-17 21-22, 26-27, 31-32, 36-37
T1069 T1109 1CT:1.41 1CT:1.41 1.2
1.2
.6 .6
35 35 TOU/3
1-3, 6-8, 11-13, 16-18 21-23, 26-28, 31-33, 36-38
T1070 T1110 1:1.15 1:2CT 1.2 1.2
T1071D T1111D 1:1/1.26 1:2CT 1.2 1.2
.6 .6
.6 .6
35 35 TOU/1
35 35 TOU/2
1-2, 6-7, 11-12, 16-17 21-23, 26-28, 31-33, 36-38
1-2, 6-7, 11-12, 16-17 21-22, 26-27, 31-32, 36-37
T1072 T1112 1:1.15 1:1.15 1.2 1.2
.6 .6
35 35 TOU/5
1-3, 6-8, 11-13, 16-18 4-5, 9-10, 14-15, 19-20
T1073 T1113
1:2
1:2 1.2 1.2 .6 .6 35 35 TOU/5 1-3, 6-8, 11-13, 16-18 4-5, 9-10, 14-15, 19-20
T1078
1:1.08 1.08CT:1 1.2
1.2
.4
.5
35 35 TOU/1
1-2, 6-7, 11-12, 16-17 38-36, 33-31, 28-26, 23-21
T1124 T1114 1:2CT 1CT:2 1.2 1.2
.6 .6
35
35
TOU/3
4-5, 9-10, 14-15, 19-20
1-3, 6-8, 11-13, 16-18
T1125
1:1.70 1:1.36CT 1.2
1.2
.8
.6
35 35 TOU/1
1-2, 6-7, 11-12, 16-17 21-23, 26-28, 31-33, 36-38
T1129
1:1.36CT 1:1CT 1.2 1.2 .6 .6
35 35 TOU/3 24-25, 29-30, 34-35, 39-40 4-5, 9-10, 14-15, 19-20
T1142 T1231
1:2.4
1:1
1.0 1.0
.5 .5
35 35 TOU/6
1-2, 8-9, 11-12, 18-19 24-25, 27-28, 34-35, 37-38
— TX1268 1:2.8 1:1 1.0 1.0 .5 .5 35 35 TOU/6 1-2, 8-9, 11-12, 18-19 24-25, 27-28, 34-35, 37-38
— T1226 1:1.5 1.41:1 1.0 1.0 .5 .5 35 35 TOU/6 1-2, 8-9, 11-12, 18-19 24-25, 27-28, 34-35, 37-38
T1145D 1:2/2.4 1:0.79/1 1.0 1.0 1.0 1.0 35 35 TOU/7 1-2, 9-10, 11-12, 19-20 37-36, 35-34, 27-26, 25-24
T1180 — 1:2.42 1:2.42 1.2 1.2 .6 .6 35 35 TOU/5 1-3, 6-8, 11-13, 16-18 4-5, 9-10, 14-15, 19-20
T1181
1:2.1CT 1:2.1CT 1.2 .6
.6 .6
35 35 TOU/2
1-2, 6-7, 11-12, 16-17 21-22, 26-27, 31-32, 36-37
T1182
1:2.45CT 1:2.45CT 1.2
.6
.6 .6
35 35 TOU/2
1-2, 6-7, 11-12, 16-17 21-22, 26-27, 31-33, 36-37
— TX1262 1:2
1:2
1.2 1.2
.7 .7
35 35 TOU/6
1-2, 6-7, 11-12, 16-17
3-4, 8-9, 13-14, 18-19
— TX1264 1:2CT 1CT:1 1.2 1.2
.6 .6
35
35
TOU/3
4-5, 9-10, 14-15, 19-20
1-3, 6-8, 11-13, 16-18
— TX1266 1:2
1:1 1.2 1.2 .6 .6 35 35 TOU/5 1-3, 6-8, 11-13, 16-18 4-5, 9-10, 14-15, 19-20
— TX1292 1:1.36 1:1
1.2 1.2
.6 .6
40 40 TOU/5
1-3, 6-8, 11-13, 16-18 4-5, 9-10, 14-15, 19-20
— TX1294 1:1CT 1:1CT 1.2 1.2 .6 .6 35 35 TOU/3 4-5, 9-10, 1 4-15, 19-20 24-25, 29-30, 34-35, 39-40
TX1295 1:1.26CT 1:1.26CT 1.2
1.2
.6 .6
35
35 TOU/3 4-5, 9-10, 1 4-15, 19-20 24-25, 29-30, 34-35, 39-40
— TX1298 1:1
1:1 1.2 1.2 .7 .7 35 35 TOU/5 1-3, 6-8, 11-13, 16-18 4-5, 9-10, 14-15, 19-20
Note: RoHS-6 compliant parts can be ordered by adding an “NL” suffix to the part number (i.e. T1063 becomes T1063NL).
Mechanical
TOU
.640 MAX
16,26
40X
.018
0,46
.004/0,10
40 Surfaces
1.125 MAX
28,58
T1XXX
DATE CODE
COUNTRY OF ORIGIN
19X
.050
1,27
.950
24,13
.010
0,25
40X
.090
2,29
.480
12,19
.050
1,27
40X
.030
0,77
19X
.050
1,27
=
.950
24,13
SUGGESTED PAD LAYOUT
0° – 8°
.485
12,32
40X
.045
1,14
.230 MAX
5,84
Weight . . . . . . . . . . . . . .4.0 grams
Tape & Reel . . . . . . . . . . . .250/reel
Tube . . . . . . . . . . . . . . . . . .15/tube
Dimensions: Inches
mm
Unless otherwise specified, all tolerances are ± .010
0,25
USA 858 674 8100 Germany 49 7032 7806 Singapore 65 6287 8998 Shanghai 86 21 54643211 / 2 China 86 769 85538070 Taiwan 886 3 4641811
www.pulseeng.com
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T622.H (6/06)

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T1/E1/CEPT/ISDN-PRI TRANSFORMERS
Quad Port T1/E1 with 8 Transformers, 1500Vrms
IC Mfr.
Mindspeed
(Conexant)
Cirrus Logic
(Crystal)
Maxim
(Dallas)
Exar
Infineon
Technologies
(Siemens)
Intel
(Level One)
Lucent
Technologies
Zarlink
(Mitel)
PMC-Sierra
Transformer Selection Guide
IC Part Number
BT8510
BT8510
CN8380
BT8370/5/6
BT8370/5/6
61318
61577
61304A/5A/535A/574A,/75
61304A/5A/535A/574A,/75
61304A/5A/535A/574A,/75
61582, 61583
61310, 61581
61881
61584/84A
61584/82/83/A
DS2196
DS2151/2152/2153/2154
DS2151/2152/2153/2154
DS2148/Q48
DS2148/Q48
DS21352/Q352,DS21354/Q354
DS21552/Q552,DS21554/Q554
DS21552/Q552,DS21554/Q554
T5683A, 59L91
T5894,T5897,T5997
T5791/93/94/95
81L27,82L24,82D20
83L30/34/38
T5684,T7288,82D20
PEB 2254/55
PEB 2254/55
PEB 22504
PEB 22504
PEB22554
PEB2256 3.3 V
LXT 300/301
LXT 304/305/307
LXT 304/305/307
LXT 304/305/307
LXT 310/317/318
LXT 331
LXT 331, LXT 332
LXT 331, LXT 332
LXT 334, LXT 335
LXT 334, LXT 335
LXT 334, LXT 335
LXT 336
LXT 350, LXT 351, LXT 359
LXT 350, LXT 351
LXT 360/361/362/363
LXT 360/361/362/363
LXT 380/381/384/386/388
LXT 380/381/384/386/388
LXT 3104, LXT 3108
T7288, T290A
T7289A
T7688, T7690, T7698
T7689, T7690, T7698
T7693,T7697
TLIU04C1
TLIU04C1
MT9071, MT9076
MT9076, MT9075
MT9074, MT9075
PM4341/6341/4314
PM4318
PM4351/4354
Comments
T1/E1
T1/E1
Better Rl
Low Power
120 E1
T1 & E1
T1
75 E1
120 E1
IQ3
IQ5
3V
5V
E1/T1 & J1
E1/T1 & J1
3.3V
5V
3.3V
E1/T1/J1
T1,E1
T1
75E1,120E1
T1,E1
T1/E1
120/75 E1
75 E1
T1,E1
T1,E1
T1/E1
T1/E1
CEPT
DS1
CEPT
DS1
CEPT
DS1
CEPT
COMET
Octal SMT
STD temp EXT temp
T1071 T1111
T1071 T1111
T1124 T1114
T1067 T1107
T1070 T1110
T1068 T1108
T1065 T1105
T1070 T1110
T1068 T1108
T1071 T1111
T1064 T1104
T1068 T1108
T1070 T1110
T1065 T1105
T1064 T1104
T1068 T1108
T1070 T1110
T1067 T1107
T1068 T1108
T1067 T1107
T1068 T1108
T1070 T1110
T1067 T1107
T1065 T1105
T1065 T1105
T1071 T1111
T1067 T1107
T1065 T1105
T1067 T1107
T1069 T1109
T1069 T1109
T1142 T1231
T1226 T1226
T1142 T1231
T1142 T1231
T1065 T1105
T1065 T1105
T1070 T1110
T1071 T1111
T1068 T1108
T1068 T1108
T1065 T1105
T1070 T1110
T1065 T1105
T1067 T1107
T1071 T1111
T1065 T1105
T1068 T1108
T1070 T1110
T1068 T1108
T1070 T1110
T1068 T1108
T1124 T1114
T1068 T1108
T1067 T1107
T1070 T1110
T1063 T1103
T1064 T1104
T1180
T1064 T1104
T1063 T1103
T1180
T1142 T1231
T1068 T1108
T1067 T1107
T1065 T1105
T1180 TX1299
Schematics
1
1 40
2 39
3 38
4
5 36
6 35
7 34
8 33
9
10 31
11 30
12 29
13 28
14
15 26
16 25
17 24
18 23
19
20 21
2
1 40
39
2 38
3 37
4
5 36
6 35
34
7 33
8 32
9
10 31
11 30
29
12 28
13 27
14
15 26
16 25
24
17 23
18 22
19
20 21
3
1 40
2
3 39
4 38
37
5 36
6 35
7
8 34
9 33
32
10 31
11 30
12
13 29
14 28
27
15 26
16 25
17
18 24
19 23
22
20 21
4567
1 40 1 40 1 40 1 40
39
2 39 3 38 2 39 2 38
3 38 4 37 3 38 3 37
44
5 36 5 36 4 37 5 36
6 35 6 35 6 35 6 35
77
8 33 8 33 7 34 8 34
9 32 9 32 8 33 9 33
32
10 31 10 31 9 32 10 31
11 30 11 30 11 30 11 30
29
12 29 13 28 12 29 12 28
13 28 14 27 13 28 13 27
14 14
15 26 15 26 14 27 15 26
16 25 16 25 16 25 16 25
17 17
18 23 18 23 17 24 18 24
19 22 19 22 18 23 19 23
22
20 21 20 21 19 22 20 21
NOTES FROM TABLES
A. OCL (primary inductance) is measured at the primary winding.
Turns ratio is specified primary: secondary. (CT = Center Tap).
B. To make a 1CT:1 ratio from a 1CT:2CT ratio, use only one-half
of the secondary (2CT) winding.
C. It is possible to use the same transformer model for the three
impedance levels of T1 (100Ω) and CEPT (75Ω & 120Ω). For
specific connection information and resistor values, refer to IC
vendors' data book.
D. Dual Ratio Transformer (T1071, T1111 and T1145) — These
transformers have tapped secondary windings to provide two
turns ratios (T/R). Use the entire primary winding and connect
the secondary pins listed below to obtain desired turns ratio:
Part Turns Secondary Turns Secondary
Number Ratio 1
Pins
Ratio 2
Pins
T1071
and
T1111
1:1
1:1
1:1
1:1
40-39
35-34
30-29
25-24
1:1.26
1:1.26
1:1.26
1:1.26
40-38
35-33
30-28
25-23
1:2
40-39
1:2.4
40-38
T1145
1:2
1:2
33-32
30-29
1:2.4
1:2.4
33-31
30-28
1:2
23-22
1:2.4
23-21
E. Standard packaging for the surface mount package is anti-static
tubes. Optional Tape & Reel packaging can be ordered by
adding a “T” suffix to the part number, (i.e. T1063T).
F. Extended Temperature Range Models — For extended
temperature range transformers (-40°C to +85°C operating
temperature range), OCL (Open Circuit Inductance for the
primary winding) is specified at both -40°C and +25°C. At -
40°C, OCL is 600 µH minimum. All other parameters are
specified at +25°C only. Standard temperature range is 0°C
to +70°C.
USA 858 674 8100 Germany 49 7032 7806 Singapore 65 6287 8998 Shanghai 86 21 54643211 / 2 China 86 769 85538070 Taiwan 886 3 4641811
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T1/E1/CEPT/ISDN-PRI TRANSFORMERS
Quad Port T1/E1 with 8 Transformers, 1500Vrms
1. ET Product — All coils have an ET product of 10V-µsec minimum.
2. Flammability — Materials used in the products are recognized
as UL94-VO approved. Products meet the requirements of
IEC 695-2-2 (Needle Flame Test).
3. Balance Characteristics — The transformers meet the
requirements for longitudinal balance of FCC part 68.
4. Common Mode Rejection Ratio — the CMRR for all transformers
is better than 50dB at 1MHz. A typical test circuit is shown below.
HP-8751A
P1 P2
8. Isolation Voltage — 100% of transformers are tested during
production to the specified isolation voltage level.
9. General Information — The transformers are specifically
designed for use in 1.544Mbps (T1), 2.048Mbps (CEPT) and ISDN
Primary rate (PRI) interface applications. They are matched to the
majority of the line interface transceiver ICs currently
available. Use of the proper transformer allows the interface
circuit to comply with ITU-T G.703 and other standards regarding
pulse waveform, return loss, and balance.
10. Common Mode Chokes — Additional high-frequency 4-line
common mode chokes may be used to provide an effective means
of complying with national and international regulations on EMI.
The common mode chokes are designed to be used in conjunction
with Pulse’s T1/CEPT transformers as shown in the typical
application below. Crosstalk is typically -65dB or better.
50:100
BALUN
XFMR
100:50
BALUN
Typical Application
5. Crosstalk Attenuation — In the packages which contain transmit
and receive transformers side by side, sufficient crosstalk
attenuation is achieved by the inherent characteristics of the toroid
cores as well as by their proper positioning. The crosstalk
attenuation is typically 65dB or better. This result was established
with the test circuit shown below.
HP-8751A
P1 P2
50:100
BALUN
100
100
XFMR 100:50
BALUN
6. Return Loss — ITU-T G.703 and European national regulatory
documents specify minimum return loss levels. The transformers
will allow these limits to be complied within the situations where
they are applicable.
Frequency
50-100kHz 100kHz-2MHz 2-3MHz
Return Loss
XMIT 9dB 15dB 11dB
RCV
12dB
18dB
14dB
7. Surge Voltage Capability – All transformers and chokes
meet surge voltage tests according to the most stringent
regulatory documents, when used with the proper voltage and cur-
rent suppression devices:
Metallic Voltage: 800V peak, 10/560µsec
Longitudinal Voltage: 2,400V peak, 10/700µsec
8-Transformer
IC Package
XMIT 1
RCV 1
RCV 2
XMIT 2
XMIT 3
T8008
RCV 3
RCV 4
XMIT 4
8-Transformer
Package
IC
RCV 1
XMIT 1
XMIT 2
T8008
RCV 2
RCV 3
XMIT 3
XMIT 4
RCV 4
USA 858 674 8100 Germany 49 7032 7806 Singapore 65 6287 8998 Shanghai 86 21 54643211 / 2 China 86 769 85538070 Taiwan 886 3 4641811
www.pulseeng.com
3
T622.H (6/06)