T622.K (04/12)1pulseelectronics.com
T1/E1/CEPT/ISDN-PRI TRANSFORMERS
Quad Port T1/E1 with 8 Transformers, 1500 Vrms
RoHS peak reflow temperature rating 245�C
Models matched to leading quad and dual T1/
E1/CEPT/ISDN-PRI transceivers
Crosstalk: -65 dB or better
UL1950 recognized (some parts pending approval)
RoHS compliant versions available upon request
TOU
Mechanical
USA 858 674 8100 Germany 49 7032 7806 0 Singapore 65 6287 8998 Shanghai 86 21 62787060 China 86 755 33966678 Taiwan 886 3 4356768
Electrical Specifications @ 25�C
RoHS Compliant
Part Number Package/
Schematic
Std Temp. Ex Temp TX RX TX RX TX RX TX RX Transmit Receive
T1064NL - 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
T1065NL T1105NL 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
T1068NL T1108NL 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
T1071NL - 1:1/1.26 1:2CT 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
T1073NL - 1:2 1:2 1.2 1.2 .6 .6 35 35 TOU/4 1-3, 6-8, 11-13, 16-18 4-5, 9-10, 14-15, 19-20
T1124NL T1114NL 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
T1142NL T1231NL 1:2.4 1:1 1.0 1.0 .5 .5 35 35 TOU/5 1-2, 8-9, 11-12, 18-19 24-25, 27-28, 34-35, 37-38
T1145NL - 1:2/2.4 1:0.79/1 1.0 1.0 1.0 1.0 35 35 TOU/6 1-2, 9-10, 11-12, 19-20 37-36, 35-34, 27-26
- TX1262NL 1:2 1:2 1.2 1.2 .7 .7 35 35 TOU/5 1-2, 6-7, 11-12, 16-17 3-4, 8-9, 13-14, 18-19
- TX1264NL 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
- TX1266NL 1:2 1:1 1.2 1.2 .6 .6 35 35 TOU/4 1-3, 6-8, 11-13, 16-18 4-5, 9-10, 14-15, 19-20
- TX1295NL 1:1.26CT 1:1.26CT 1.2 1.2 .6 .6 35 35 TOU/3 4-5, 9-10, 14-15, 19-20 24-25, 29-30, 34-35, 39-40
Weight ......................3.8 grams
Tape & Reel ..................175/reel
Tray ..............................105/tray
Dimensions: Unless otherwise specified, all tolerances are ±
Inches
mm
.010
0,25
Turns Ratio
(Pri:Sec ±2%)
OCL @ 25�C
(mH MIN)
L
(μH MAX)
ww
(pF MAX) Primary Pins
Notes: Chart Notes and TOU Schematics are on page 2.
LC
T622.K (04/12)2pulseelectronics.com
T1/E1/CEPT/ISDN-PRI TRANSFORMERS
Quad Port T1/E1 with 8 Transformers, 1500 Vrms
Transformer Selection Guide
IC Mfr. IC Part Number Comments Octal SMT
STD Temp EXT Temp
Mindspeed
(Conexant)
Notes from Electrical Specifications Table
A. OCL (primary inductance) is measured at the primary winding. Turns ratio is specified primary:
secondary.
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 (100 W) and CEPT
(75 Ω & 120 Ω). For specific connection information and resistor values, refer to IC vendor’s data
book.
D. Dual Ratio Transformer (T1071NL and T1145NL) - These transformers have tapped secondary windings
Part
Number
Turns
Ratio 1
Secondary
Pins
Turns
Ratio 2
Secondary
Pins
1:1 40-39 1:1.26 40-38
1:1 35-34 1:1.26 35-33
1:1 30-29 1:1.26 30-28
1:1 25-24 1:1.26 25-23
1:2 40-39 1:2.4 40-38
1:2 33-32 1:2.4 33-31
1:2 30-29 1:2.4 30-28
1:2 23-22 1:2.4 23-21
T1071NL
T1145NL
E. Dual Ratio Transformer for the surface mount package is anti-static tubes. Optional Tape & Reel
packaging can be ordered by adding a “T” sux to the part number, (i.e. T1064NLT).
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.
to provide two turns ratios (T/R). Use the entire primary winding and connect the secondary pins
listed below to obtain desired turns ratio:
TOU
Schematics
BT8510
BT8510
CN8380
61318
61577
61304A/5A/535A/574A,/75
61304A/5A/535A/574A,/75
61582, 61583
61310, 61581
61584/84A
61584/82/83/A
DS2196
DS2148/Q48
DS21352/Q352, DS21354/Q354
T5683A, 59L91
T5894, T5897, T5997
T5791/T93/94/95
83L30/34/38
PEB22504
PEB22554
PEB2256 3.3 V
T7689, T769, T7698
TLIU04C1
MT9076, MT9075
MT9074, MT9075
PM4318
LXT 300/301
LXT 304/305/307
LXT 304/305/307
LXT 310/317/318
LXT 331
LXT 331, LXT 332
LXT 334, LXT 335
LXT 334, LXT 335
LXT 336
LXT 350, LXT 351, LXT 359
LXT 360/361/362/363
LXT 380/381/384/386/388
LXT 380/381/384/386/388
LXT 3104, LXT 3108
T1065NL
T1065NL
T1071NL
T1065NL
T1142NL
T1142NL
T1142NL
T1064NL
T1064NL
T1142NL
T1068NL
T1065NL
T1065NL
T1065NL
T1071NL
T1068NL
T1068NL
T1065NL
T1065NL
T1071NL
T1065NL
T1068NL
T1068NL
T1068NL
T1124NL
T1068
3.3V
3.3V
E1/T1/J1
DS1
DS1
T1, E1
75 E1, 120E1
T1, E1
T1/E1
75 E1
T1, E1
T1, E1
T1, E1
T1, E1
T1105NL
T1105NL
-
T1105NL
T1231NL
T1231NL
T1231NL
-
-
T1231NL
T1108NL
T1105NL
T1105NL
T1105NL
-
T1108NL
T1108NL
T1105NL
T1105NL
-
T1105NL
T1108NL
T1108NL
T1108NL
T1114NL
T1108NL
T1068NL
T1068NL
T1068NL
T1108NL
T1108NL
T1108NL
3V
120 E1
T1 & E1
75 E1
120 E1
IQ3
IQ5
T1068NL
T1065NL
T1068NL
T1071NL
T1064NL
T1068NL
T1065NL
T1064NL
T1108NL
T1105NL
T1108NL
-
-
T1108NL
T1105NL
-
T1071NL
T1071NL
T1124NL
-
-
T1114NL
T1/E1
T1/E1
Cirrus Logic
(Crystal)
Maxim
(Dallas)
Infineon
Technologies
(Siemens)
Intel
(Level One)
Lucent
Technologies
Zarlink
(Mitel)
PMC Sierra
Exar
T622.K (04/12)3pulseelectronics.com
T1/E1/CEPT/ISDN-PRI TRANSFORMERS
Quad Port T1/E1 with 8 Transformers, 1500 Vrms
Application
Typical Application
1. ET Product - All coils have an ET product of 10 V-μsec
minimum.
2. Flammability - Materials used in the products are
recognized as UL94-VO approved. Products meet the
IEC 695-2-2 requirements (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.
5. Crosstalk Attentuation - In the packages which contain
transmit and receive transformers side by side, sucient
crosstalk attentuation is achieved by the inherent
characteristics of the toroid cores as well as by their
proper positioning. The crosstalk attentuation is typically
65 dB or better. This result was established with the test
circuit shown below.
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
with the situations where they are applicable.
Frequency 50-100 kHz 10 kHz-2MHz 2-3 MHz
Return Loss
Transmit 9 dB 15 dB 11 dB
Receive 12 dB 18 dB 14 B
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 current
suppression devices:
Metallic Voltage: 800 V peak, 10/560μsec
Longitudinal Voltage: 2,400 V peak, 10/700μsec
8. Isolation Voltage - 100% of transformers are tested during the
specified isolation voltage level.
9. General Information - The transformers are specifically designed
for use in 1.544 Mbps (T1), 2.048 Mbps (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 eective
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 -65 dB or better.
HP-8751A
P1 P2
50:100
BALUN
100:50
BALUN
XFMR
50:100
BALUN
100:50
BALUN
XFMR
HP-8751A
P1 P2
100
100
T622.K (04/12)4pulseelectronics.com
T1/E1/CEPT/ISDN-PRI TRANSFORMERS
Quad Port T1/E1 with 8 Transformers, 1500 Vrms
TOU
IN
SH
Schematic
Schematic
Mechanicals
140
239
3 38
536
6 35
734
8 33
31
30
29
28
26
25
24
23
21
10
11
12
13
15
16
17
18
20
2
L
C
Electrical Specifications @ 25°C
RoHS Compliant
Part Number
Number of
Lines
Turns Ratio
(±5%)
OCL
(μH MIN)
w/w
(pF MAX)
L
(μH MAX)
DCR
(Ω MAX)
Isolation
(Vrms MIN) Package/Schematic
T8008NL* 16 (8 x 2 line) 1:1 (8 places) 47.0 25 .18 0.40 500 TOU/2 (Surface Mount)
PE-65554NL 41:1:1:1 24.0 15 .20 0.30 500 IN/1 (Through Hole)
PE-65555NL 41:1:1:1 8.0 10 .20 0.25 500 IN/1 (Through Hole)
PE-65854NL 41:1:1:1 47.0 16 .20 0.30 500 SH/1 (Surface Mount)
PE-65857NL 41:1:1:1 24.0 15 .23 0.30 500 LA/1 (Surface Mount)
*Notes: Please see page 1 for TOU mechanical specifications.
High Frequency Common Mode Chokes
5pulseelectronics.com
T1/E1/CEPT/ISDN-PRI TRANSFORMERS
Quad Port T1/E1 with 8 Transformers, 1500 Vrms
T622.K (04/12)
For More Information
Pulse Worldwide
Headquarters
12220 World Trade Drive
San Diego, CA
92128
U.S.A.
Tel: 858 674 8100
Fax: 858 674 8262
Pulse Europe
Einsteinstrasse 1
D-71083 Herren-
berg
Germany
Tel: 49 7032 78060
Fax: 49 7032 7806 135
Pulse China Headquarters
B402, Shenzhen Academy of
Aerospace Technol-
ogy Bldg.
10th Kejinan Road
High-Tech Zone
Nanshan District
Shenzen, PR China
518057
Tel: 86 755 33966678
Fax: 86 755 33966700
Pulse North China
Room 2704/2705
Super Ocean Finance
Ctr.
2067 Yan An Road
West
Shanghai 200336
China
Tel: 86 21 62787060
Fax: 86 2162786973
Pulse South Asia
135 Joo Seng Road
#03-02
PM Industrial Bldg.
Singapore 368363
Tel: 65 6287 8998
Fax: 65 6287 8998
Pulse North Asia
3F, No. 198
Zhongyuan Road
Zhongli City
Taoyuan County 320
Taiwan R. O. C.
Tel: 886 3 4356768
Fax: 886 3 4356823 (Pulse)
Fax: 886 3 4356820 (FRE)
Performance warranty of products oered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be
trademarks or registered trademarks of their respective owners. © Copyright, 2012. Pulse Electronics, Inc. All rights reserved.
LA
Mechanical Schematic
Weight ......................0.3 grams....................2 grams......................2.5 grams
Tape & Reel ................1500/reel...................250/reel..............................(N/A)
Tray ................................25/tray....................30/tube..........................35/tube
Dimensions:
Unless otherwise specified, all tolerances are ±
Inches
mm
.010
0,25