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
www.pulseeng.com 1 T622.J (11/09)
Electrical Specifications @ 25°C
RoHS Compliant
Part Number C
Turns Ratio A, B
(Pri:Sec ±2%)
OCL @ 25°C
(mH MIN) F
LL
(µH MAX)
Cww
(pFMAX) Package/
Schematic E
Primary PIns
Std Temp. Ex Temp F TX RX TX RX TX RX TX RX Transmit Receive
T1063NL — 1:1.36 1:1.36CT 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
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 D —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
T1129NL — 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
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
T1145 NLD—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, 25-24
—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, 1 4-15, 19-20 24-25, 29-30, 34-35, 39-40
Mechanical
TOU
Weight . . . . . . . . . . . . 4.0 grams
Tape & Reel . . . . . . . . . 250/reel
Tube . . . . . . . . . . . . . . . .15/tube
T1/E1/CEPT/ISDN-PRI TRANSFORMERS
Quad Port T1/E1 with 8 Transformers, 1500 Vrms
Dimensions: Inches Unless otherwise specified, all tolerances are ± .010
mm 0,25
NOTE: Chart Notes and TOU Shcematics are on page 2.
USA 858 674 8100 • Germany 49 7032 7806 0 • Singapore 65 6287 8998 • Shanghai 86 21 62787060 • China 86 755 33966678 • Taiwan 886 3 4643715
www.pulseeng.com 2 T622.J (11/09)
Notes from Electrical Specifications Table
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 (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 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
Number
Turns
Ratio 1
Secondary
Pins
Turns
Ratio 2
Secondary
Pins
1:1 40-39 1:1.26 40-38
T1071NL 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
T1145NL 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
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. T1063NLT).
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
Transformer Selection Guide
IC Mfr. IC Part Number Comments Octal SMT
STD Temp EXT Temp
Mindspeed BT8510 T1/E1 T1071NL —
(Conexant) BT8510 T1/E1 T1071NL —
CN8380 T1124NL T1114NL
Cirrus Logic 61318 120 E1 T1068NL T1108NL
(Crystal) 61577 T1 & E1 T1065NL T1105NL
61304A/5A/535A/574A,/75 75 E1 T1068NL T1108NL
61304A/5A/535A/574A,/75 120 E1 T1071NL —
61582, 61583 T1064NL —
61310, 61581 T1068NL T1108NL
61584/84A IQ3 T1065NL T1105NL
61584/82/83/A IQ5 T1064NL —
Maxim DS2196 T1068NL T1108NL
(Dallas) DS2148/Q48 3V T1068NL T1108NL
DS21352/Q352,DS21354/Q354 T1068NL T1108NL
Exar T5683A, 59L91 T1065NL T1105NL
T5894,T5897,T5997 T1065NL T1105NL
T5791/93/94/95 T1071NL —
83L30/34/38 T1065NL T1105NL
Infineon PEB 22504 3.3V T1142NL T1231NL
Technologies PEB22554 3.3V T1142NL T1231NL
(Siemens) PEB2256 3.3 V E1/T1/J1 T1142NL T1231NL
Intel LXT 300/301 T1065NL T1105NL
(Level One) LXT 304/305/307 T1,E1 T1065NL T1105NL
LXT 304/305/307 75 E1,120E1 T1071NL —
LXT 310/317/318 T1068NL T1108NL
LXT 331 T1,E1 T1068NL T1108NL
LXT 331, LXT 332 T1065NL T1105NL
LXT 334, LXT 335 T1/E1 T1065NL T1105NL
LXT 334, LXT 335 75 E1 T1071NL —
LXT 336 T1065NL T1105NL
LXT 350, LXT 351, LXT 359 T1,E1 T1068NL T1108NL
LXT 360/361/362/363 T1,E1 T1068NL T1108NL
LXT 380/381/384/386/388 T1/E1 T1068NL T1108NL
LXT 380/381/384/386/388 T1/E1 T1124NL T1114NL
LXT 3104, LXT 3108 T1068NL T1108NL
Lucent T7688, T7690, T7698 CEPT T1063NL —
Technologies T7689, T7690, T7698 DS1 T1064NL —
TLIU04C1 DS1 T1064NL —
TLIU04C1 CEPT T1063NL —
Zarlink MT9076, MT9075 T1142NL T1231NL
(Mitel) MT9074, MT9075 T1068NL T1108NL
PMC Sierra PM4318 T1065NL T1105NL
T1/E1/CEPT/ISDN-PRI TRANSFORMERS
Quad Port T1/E1 with 8 Transformers, 1500 Vrms
TOU
Schematics
USA 858 674 8100 • Germany 49 7032 7806 0 • Singapore 65 6287 8998 • Shanghai 86 21 62787060 • China 86 755 33966678 • Taiwan 886 3 4643715
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 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 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 within the situations where they are applicable.
Frequency 50-100 kHz 100 kHz-2 MHz 2-3 MHz
Return Loss
Transmit 9 dB 15 dB 11 dB
Receive 12 dB 18 dB 14 dB
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 production to
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 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 -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
T1/E1/CEPT/ISDN-PRI TRANSFORMERS
Quad Port T1/E1 with 8 Transformers, 1500 Vrms
www.pulseeng.com 3 T622.J (11/09)
Application Notes
T ypical Application
USA 858 674 8100 • Germany 49 7032 7806 0 • Singapore 65 6287 8998 • Shanghai 86 21 62787060 • China 86 755 33966678 • Taiwan 886 3 4643715
*NOTE: Please see page 1 for TOU mechanical specifications.
Mechanicals
IN
SH
www.pulseeng.com 4 T622.J (11/09)
T1/E1/CEPT/ISDN-PRI TRANSFORMERS
Quad Port T1/E1 with 8 Transformers, 1500 Vrms
Electrical Specifications @ 25°C
RoHS Compliant
Part Number
Number of
Lines
Turns Ratio
(±5%)
OCL
(µH MIN)
CW/W
(pF MAX)
LL
(µH MAX)
DCR
(Ω MAX)
Isolation
(Vrms MIN) Package/Schematic
HIGH FREQUENCY COMMON MODE CHOKES
T8008NL* 16 (8 x 2 line) 1:1 (8 places) 47.0 25 .18 0.40 500 TOU/2 (Surface Mount)
PE-65554NL 4 1:1:1:1 24.0 15 .20 0.30 500 IN/1 (Through Hole)
PE-65555NL 4 1:1:1:1 8.0 10 .20 0.25 500 IN/1 (Through Hole)
PE-65854NL 4 1:1:1:1 47.0 16 .20 0.30 500 SH/1 (Surface Mount)
PE-65857NL 4 1:1:1:1 24.0 15 .23 0.30 500 LA/1 (Surface Mount)
Schematic
Schematic
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
TOU
USA 858 674 8100 • Germany 49 7032 7806 0 • Singapore 65 6287 8998 • Shanghai 86 21 62787060 • China 86 755 33966678 • Taiwan 886 3 4643715
SH LA IN
Weight . . . . . 0.3 grams. . . . . 2 grams . . 2.5 grams
Tape & Reel . . 1500/reel. . . . . 250/reel . . . . . . . (N/A)
Tube . . . . . . . . . 25/tube. . . . . 30/tube . . . . . 35/tube
Dimensions: Inches
mm
Unless otherwise specified all tolerances are ± .010
0,25
Typical common mode attenuation for high frequency
common mode chokes based on a 100 Ω system.
LA
www.pulseeng.com 5 T622.J (11/09)
T1/E1/CEPT/ISDN-PRI TRANSFORMERS
Quad Port T1/E1 with 8 Transformers, 1500 Vrms
Mechanical
Schematic
For More Information:
Pulse Worldwide
Headquarters
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U.S.A.
www.pulseeng.com
Tel: 858 674 8100
Fax: 858 674 8262
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Tel: 49 7032 7806 0
Fax: 49 7032 7806 135
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Aerospace Technology Bldg.
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Tel: 86 755 33966678
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Tel: 86 21 62787060
Fax: 86 2162786973
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#03-02
PM Industrial Bldg.
Singapore 368363
Tel: 65 6287 8998
Fax: 65 6287 8998
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Zhongli City
Taoyuan County 320
Taiwan R. O. C.
Tel: 886 3 4356768
Fax: FRE 886 3 43568 20
Pulse: 886 3 4356823
Performance warranty of products offered 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, 2009. Pulse Engineering, Inc. All rights reserved.
