Part Number Turns Ratio 2Secondary LLCW/WDCR Pri Package/ Primary
(Pri:Sec ± 2%) OCL @ 25°C (µH MAX) (pF MAX) (
W
MAX) Schematic Pins
w/CMC wo/CMC Transmit Receive (mH MIN) Transmit Receive
EXTENDED TEMPERATURE RANGE MODELS1– OPERATING TEMPERATURE -40°C TO +85°C
T1176 TX1321 1CT:2.4CT 1CT:1CT 1.20 0.50 35 0.80 WAT/2 1-3 & 10-12 21-19 & 18-16
TX1192 TX1322 1CT:2.42CT 1CT:2.42CT 1.20 0.50 25 0.80 WAT/1 4-6 & 10-12 1-3 & 7-9
TX1193 TX1323 1CT:2CT 1CT:1CT 1.20 0.50 35 0.80 WAT/1 4-6 & 10-12 24-22 & 18-16
TX1194 TX1324 1CT:1.15CT 1CT:1.15CT 1.20 0.50 35 0.80 WAT/1 4-6 & 10-12 1-3 & 7-9
TX1195 TX1325 1CT:1.41CT 1CT:1.41CT 1.20 0.50 30 0.80 WAT/2 1-3 & 10-12 21-19 & 18-16
TX1196 TX1326 1CT:2CT 1CT:2CT 1.20 0.50 25 0.80 WAT/1 4-6 & 10-12 1-3 & 7-9
TX1197 TX1327 1CT:2CT 1CT:2CT 1.20 0.50 25 0.80 WAT/2 1-3 & 10-12 21-19 & 18-16
TX1198 TX1328 1CT:2.3CT 1CT:1CT 1.20 0.50 35 0.80 WAT/1 4-6 & 10-12 24-22 & 18-16
TX1199 TX1329 1CT:1.36CT 1CT:2CT 1.20 0.50 35 0.80 WAT/1 4-6 & 10-12 24-22 & 18-16
TX1300 TX1330 1CT:1.36CT 1CT:1CT 1.20 0.50 35 0.80 WAT/1 4-6 & 10-12 24-22 & 18-16
TX1301 TX1331 1CT:1.15CT 1CT:2CT 1.20 0.50 35 0.80 WAT/1 4-6 & 10-12 1-3 & 7-9
PRELIMINARY T662.P (4/01)
T1/E1/CEPT/ISDN-PRI
INTERFACE MODULES
Four Transformer Modules for Dual SMT
T1/E1 Ports, Extended Temperature Range
U.S: 858 674 8100
··
··
U.K: 44 1483 401 700
··
··
France: 33 3 84 35 04 04
··
··
Singapore: 65 287 8998
··
··
Taiwan: 886 2 2698 0228
··
··
http://www.pulseeng.com
Dimensions: Inches
mm
Unless otherwise specified, all tolerances are ± .010
0,25
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
Mechanical Schematics
Electrical Specifications @ 25°C
.690
17,53
.550
13,97
11X .050
1,27 24X .020
0,51
.480
12,20
.630
16,00
T1176/TX1XXX
DATE CODE CNTRY OF MFG
.225
5,51
.004
24 SURFACES
.010
0,25 24X .045
1,14
0°8°
SUGGESTED PAD LAYOUT
.500
12,70
.650
16,51
.550
13,97 11X .050
1,27
24X .030
0,76
Weight . . . . . . . . . . . . . .4.0 grams
Tape & Reel . . . . . . . . . . . .250/reel
Tube . . . . . . . . . . . . . . . . . .30/tube
21
19
4
6
520
TX
24
22
1
3
223
RX
15
13
10
12
11 14
TX
18
16
7
9
817
RX
1
21
19
4
6
520
RX
24
22
1
3
223
TX
15
13
10
12
11 14
TX
18
16
7
9
817
RX
2
WAT
For More Information :
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)
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
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
SINGAPORE
(Southern Asia)
150 Kampong Ampat
#07-01/02
KA Centre
Singapore 368324
TEL: 65 287 8998
FAX:65 280 0080
DISTRIBUTOR
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).
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).
2. Balance Characteristics — The transformers meet the
requirements for longitudinal balance of FCC part 68.
3. Common Mode Rejection Ratio — the CMRR for all transformers
is better than 50 dB at 1 MHz. A typical test circuit is shown below.
4. 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.
5. 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
XMIT 9 dB 15 dB 11 dB
RCV 12 dB 18 dB 14 dB
6. 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.
Notes From Tables
Application Notes
T1/E1/CEPT/ISDN-PRI
INTERFACE MODULES
Four Transformer Modules for Dual SMT
T1/E1 Ports, Extended Temperature Range
