T1/E1/CEPT/ISDN-PRI
INTERFACE MODULES
Four Transformer Modules for Dual SMT
T1/E1 Ports, Extended Temperature Range
Optimized for enhanced EMC performance
Extended temperature range
SMT Dual Port package contains transformers with Optional
Common Mode Chokes on both transmit and receive channels
Models matched to leading transceiver ICs
Patented Interlock Base construction for high reliability
Recognized to UL 1950, and EN 60950 – approval pending
Electrical Specifications @ 25°C
Part Number
w/CMC
wo/CMC
Turns Ratio
2
(Pri:Sec ± 2%)
Transmit
Receive
Secondary
OCL @ 25°C
(mH MIN)
LL
(µH MAX)
C
W
/
W
(pF MAX)
DCR Pri
( MAX)
Package/
Schematic
Primary
Pins
Transmit
Receive
1-3 & 10-12
4-6 & 10-12
4-6 & 10-12
4-6 & 10-12
1-3 & 10-12
4-6 & 10-12
1-3 & 10-12
4-6 & 10-12
4-6 & 10-12
4-6 & 10-12
4-6 & 10-12
21-19 & 18-16
1-3 & 7-9
24-22 & 18-16
1-3 & 7-9
21-19 & 18-16
1-3 & 7-9
21-19 & 18-16
24-22 & 18-16
24-22 & 18-16
24-22 & 18-16
1-3 & 7-9
E
XTENDED
T
EMPERATURE
R
ANGE
M
ODELS
1
– O
PERATING
T
EMPERATURE
-40°C
TO
+85°C
T1176
TX1321
1CT:2.4CT
1CT:1CT
1.20
0.50
TX1192
TX1322
1CT:2.42CT
1CT:2.42CT
1.20
0.50
TX1193
TX1323
1CT:2CT
1CT:1CT
1.20
0.50
TX1194
TX1324
1CT:1.15CT
1CT:1.15CT
1.20
0.50
TX1195
TX1325
1CT:1.41CT
1CT:1.41CT
1.20
0.50
TX1196
TX1326
1CT:2CT
1CT:2CT
1.20
0.50
TX1197
TX1327
1CT:2CT
1CT:2CT
1.20
0.50
TX1198
TX1328
1CT:2.3CT
1CT:1CT
1.20
0.50
TX1199
TX1329
1CT:1.36CT
1CT:2CT
1.20
0.50
TX1300
TX1330
1CT:1.36CT
1CT:1CT
1.20
0.50
TX1301
TX1331
1CT:1.15CT
1CT:2CT
1.20
0.50
35
25
35
35
30
25
25
35
35
35
35
Mechanical
WAT
.690
17,53
.550
13,97
24X
.480 .630
12,20 16,00
.500 .650
12,70 16,51
.020
0,51
SUGGESTED PAD LAYOUT
.225
5,51
.030
0,76
1
.050
11X
1,27
RX
2
3
4
T1176/TX1XXX
DATE CODE CNTRY OF MFG
TX
5
6
7
.050
11X
1,27
.550
13,97
24X
RX
8
9
10
.004
24 SURFACES
.010
0,25
TX
11
.045
24X
1,14
0°8°
12
Weight
. . . . . . . . . . . . . .4.0 grams
Tape & Reel
. . . . . . . . . . . .250/reel
Tube
. . . . . . . . . . . . . . . . . .30/tube
Dimensions:
Inches
mm
Unless otherwise specified, all tolerances are ± .010
0,25
PRELIMINARY T662.P (4/01)
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U.S: 858 674 8100
U.K: 44 1483 401 700
France: 33 3 84 35 04 04
Singapore: 65 287 8998
W
0.80
0.80
0.80
0.80
0.80
0.80
0.80
0.80
0.80
0.80
0.80
WAT/2
WAT/1
WAT/1
WAT/1
WAT/2
WAT/1
WAT/2
WAT/1
WAT/1
WAT/1
WAT/1
Schematics
1
24
23
22
21
20
19
18
17
16
15
14
13
RX
RX
TX
1
2
3
4
5
6
7
8
9
10
TX
11
12
2
24
23
22
21
20
19
18
17
16
15
14
13
Taiwan: 886 2 2698 0228
http://www.pulseeng.com
T1/E1/CEPT/ISDN-PRI
INTERFACE MODULES
Notes From Tables
Four Transformer Modules for Dual SMT
T1/E1 Ports, Extended Temperature Range
1. Extended Temperature Range Models
— For extended tempera-
ture range transformers (-40°C to +85°C operating temperature
range), OCL (Open Circuit Inductance) 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.
2.
Turns ratio is specified primary: secondary (CT = Center Tap).
3.
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. T1176T).
Application Notes
1.
Flammability
— Materials used in the products are recognized
as UL94-VO approved. Products meet the requirements of
IEC 695-2-2 (Needle Flame Test).
Balance Characteristics
— The transformers meet the
requirements for longitudinal balance of FCC part 68.
Common Mode Rejection Ratio
— the CMRR for all transformers
is better than 50 dB at 1 MHz. A typical test circuit is shown below.
Crosstalk Attenuation
— In the packages which contain transmit
and receive transformers side by side, sufficient crosstalk attenua-
tion 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.
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.
6.
Frequency
Return Loss
XMIT
RCV
9 dB
12 dB
15 dB
18 dB
11 dB
14 dB
50-100 KHz 100 KHz-2 MHz
2-3 MHz
2.
3.
4.
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 avail-
able. 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.
5.
For More Information :
UNITED STATES
(Worldwide)
12220 World Trade Drive
San Diego, CA 92128
U.S.A.
http://www.pulseeng.com
TEL: 858 674 8100
FAX: 858 674 8262
UNITED KINGDOM
(Northern Europe)
1 & 2 Huxley Road
The Surrey Research Park
Guildford, Surrey GU2 5RE
United Kingdom
TEL: 44 1483 401700
FAX: 44 1483 401701
FRANCE
(Southern Europe)
Zone Industrielle
F-39270
Orgelet
France
TEL: 33 3 84 35 04 04
FAX: 33 3 84 25 46 41
SINGAPORE
(Southern Asia)
150 Kampong Ampat
#07-01/02
KA Centre
Singapore 368324
TEL: 65 287 8998
FAX:65 280 0080
TAIWAN, R.O.C.
(Northern Asia)
3F-4, No. 81, Sec. 1
HsinTai Wu Road
Hsi-Chih, Taipei Hsien
Taiwan, R.O.C.
Tel: 886 2 2698 0228
FAX: 886 2 2698 0948
DISTRIBUTOR
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 products and/or registered trademarks of their respective owners.
Printed on recycled paper. ©2001, Pulse Engineering, Inc.
PRELIMINARY T662.P (4/01)
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