Transformer Choke
Part Ratio ±2% OCL Pri L
L
Sec CW/W CD Pri DCR Pri DCR Sec DCR IDC Secondary
Number
(Pri:Sec) (mH MIN) (µH MAX) (pF MAX) (pF MAX) (+25% MAX) (+25% MAX) OCL (MAX) (mA MAX) Pins
T5034 1CT:2CT 30 10 150 100 3.4 5.4 4.7 mH 1.4 3 20-18, 13-11
T5037 1CT:2.5CT 30 10 150 100 3.4 7.0 4.7 mH 1.4 3 20-18, 13-11
T5038 1CT:2CT 30 10 150 100 3.4 5.4 470 µH 1.4 3 20-18, 13-11
T5039 1CT:2.5CT 30 10 150 100 3.4 7.0 470 µH 1.4 3 20-18, 13-11
ISDN S-INTERFACE MODULES
Surface Mount, Dual, 1500 Vrms
Meets the pulse waveform template of
CCITT I.430 when recommended transformer
and chip pair are used
Developed f or enhanced EMC performance
Excellent longitudinal balance
Transfer molded package
Low or high frequency choke options a vailable
Mechanical Schematic
Electrical Specifications @ 25°C — Operating Temperature 0°C to 70°C
T635.A (2/98)
12220 WORLD TRADE DRIVE, SAN DIEGO, CALIFORNIA 92128 • TEL 619-674-8100 • FAX 619-674-8262 • http://www.pulseeng.com
0 - 8° .326
8,28
.040
1,02
.660
16,76
Date Code Country of Origin
T503X
.025
0,64TYP
1.170
29,72
.900
22,86
.100
2,54
.500
12,70
SUGGESTED PAD LAYOUT
.100
2,54
.100
2,54
.600
15,24 .700
17,78
.900
22,86
.050
1,27
.004/0,10
.316
8,03
10
8
3
15
2
4
7
9
6
20
19
18
13
12
11
NOTE: Optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part number (ex: T5034T).
NEW!
Weight . . . . . . . . . . . . . .6.94 grams
Tape & Reel . . . . . . . . . . . .250/reel
Tube . . . . . . . . . . . . . . . . . .15/tube
CEZ
Dimensions: Inches
mm
Unless otherwise specified, all tolerances are ± .010
0,25
ISDN S-INTERFACE MODULES
Surface Mount, Dual, 1500 Vrms
Ratio: This is the turns ratio, expressed as “Primary:Secondary”. The term “CT” designates a center tapped winding.
OCL: Open Circuit Inductance, measured 20 KHz, 100 mV.
LLSec: Leakage Inductance measured across the primary with the respective secondary winding short circuited.
CW/W:Winding capacitance, formed by the primary and secondary wire. These wires form the “Plates” of this
capacitor. Measured at 100 KHz, 20 mV.
CD Pri: This is the distributed capacitance.
DCR: This is the resistance of the windings when measured in DC conditions.
IDC:The maximum specified unbalanced DC current capability of the device.
The minimum primary inductance and the maximum distributed capacitance satisfy the transmitter output and receiver
input impedance requirements of CCITT I.430 for both TE and NT.
The maximum distributed capacitance allows sufficient margin for the capacitance of the IC and a protection diode
network. It is consistent with the overall maximum value specified and permitted length of the basic access TE cord.
Flammability Materials used in the products are recognized UL94-VO. Products meet the requirements of
IEC 695-2-2 (needle flame test).
Definition of Terms
IC Manufacturer IC Part Number Pulse Part Number
AMD AM79C 30A/32A T5034/T5038
Lucent (AT&T) T7234/T7254/T7250/T7256/T7259 T5037/T5039
T7903 T5034/T5038
Mietec MTC-2072 T5034/T5038
Mitel MT8930/8931 T5034/T5038
Motorola MC145574 T5037/T5039
National TP3420/3421 T5034/T5038
SGS Thomson ST5420/5421 T5034/T5038
Siemens PEB2080/2081/2084/2085/2086 T5034/T5038
PSB 2186
Yamaha YM7405B T5034/T5038
Module Selection Guide
12220 WORLD TRADE DRIVE, SAN DIEGO, CALIFORNIA 92128 • TEL 619-674-8100 • FAX 619-674-8262 • http://www.pulseeng.com
T635.A (2/98)
ISDN S-INTERFACE MODULES
Surface Mount, Dual, 1500 Vrms
12220 WORLD TRADE DRIVE, SAN DIEGO, CALIFORNIA 92128 • TEL 619-674-8100 • FAX 619-674-8262 • http://www.pulseeng.com
T635.A (2/98)
Application Notes
The S-Interface is the standardized four wire digital telephone
access point defined by the CCITT I-Series recommendations
for the Integrated Service Digital Network. This “basic rate
access” accommodates two 64 Kbps “B-channels” for infor-
mation, one 16 Kbps “D-channel” intended for signaling and
control, and 48 Kbps for framing and other purposes, giving a
total rate of 192 Kbps. The CCITT physical layer recommends
that the user network interface be transformer coupled as
shown in our typical application notes.
PEB 2086
Sx na
Sx nb
SR na
SR nb
R1
R2
R3
R4
VDD ZD2
D1
D2
D3
D4
VDD
D5
D7
D8
D9
D6
R5
R6
20
19
18
13
12
11
9
5
2
4
7
6
2 : 1
2 : 1
*
*
T5034
Figure 1 – Typical S-Interface Application Circuit for Siemens PEB 2086
Figure 2 – Typical S-Interface Application Circuit for Motorola MC145574
MC 145574
Txp
Txn
Rxp
Rxn
R1
R2
D1
D2
R3
R4
20
19
18
13
12
11
9
5
2
4
7
6
2.5 : 1
*
*
T5037
These protection
diodes are optional
in NT mode
These protection
diodes are optional
in NT mode
D3
D4
D5
D6
D7
D8
+5V
+5V
2.5 : 1
*NOTE : Refer to Silicon Vendors' Application Notes for more details on power supply connection and specific component values.
ISDN S-INTERFACE MODULES
Surface Mount, Dual, 1500 Vrms
-100
-70
-80
-90
-60
-50
-40
-30
-20
-10
-0
30Khz 100Khz 1Mhz 10Mhz
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
30Khz 100Khz 1Mhz 10Mhz 100Mhz
FREQUENCY
COMMON MODE
ATTENUATION (dB)
Common Mode Choke Performance
COMMON MODE
ATTENUATION (dB)
FREQUENCY
Typical Common Mode
Attenuation for the High
Frequency Common Mode
Choke (470 µH) based on
a 50 system.
Typical Common Mode
Attenuation for the Low
Frequency Common Mode
Choke (4.7 mH) based on a
50 system.
HP-4195A
CH1 CH2
50:100
BALUN 100:50
BALUN
XFMR
HP-4195A
CH1 CH2
50:100
BALUN 100:50
BALUN
XFMR
T635.A (2/98)
For More Information :
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FAX: 886 7 841 9707
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. ©1998, Pulse Engineering, Inc.