T4008 Datasheet, PDF (1/1 Pages) Pulse A Technitrol Company – ISDN U-INTERFACE TRANSFORMERS

ISDN U-INTERFACE
TRANSFORMERS
For Lucent ISDN U Transceivers
Approved by Lucent for T7234, T7237, T7256, and
T7264 transceiver ICs
Meets ANSI T1.601-1992 and ETSI ETR 080 standards
for longitudinal balance, linearity, and return loss
Minimum Isolation: 2000 Vrms
Recognized to UL 1459 and UL 1950
Part Number
T4008
Electrical Specifications @ 25°C — Operating Temperature -40°C to +85°C
Turns Ratio
Line:Chip
(±3%)
1.50:1
Line Side
Pins
(10-6)
OCL
Line side
(mH)
73-98
DCR
Line Side
(Ω)
13 ± 20%
DCR
Chip Side
(Ω)
6.5 ± 20%
IDC
(mA)
40
Isolation
Voltage
(Vrms MIN)
2000
Package
CAP
Additional Specifications
Return Loss
(10 and 25 KHz)
Longitudinal Balance
Surge Voltage Capability
Linearity
(500 Hz to 1.5 KHz)
20 dB MIN
281 Hz to 40 KHz 55 dB MIN
Metallic @ 800 V Peak 10/700 µsec
55 dB MIN
—
Above 40 KHz -20 dB/decade
Long. @ 2400 V Peak 10/560 µsec
—
NOTE: Common Mode Chokes for EMI reduction are also available. Recommended part numbers are either PE-68624 (surface mount) or PE-65944 (through hole) –
see data sheet G002. For North American applications when MLT circuit is utilized, DC current through the transformer is minimum. For these applications, smaller
size packages are available in both surface mount and through hole configurations. Contact Pulse Applications Engineering at [phone] for more information.
Mechanical
Schematic
CAP
(Filled)
.800
4X ^.200
5,08
20,32
.400
.200
10,16
5,08
7 10 6 9
1.040 _MAX
26,42
.800
20,32
.800
20,32
.900
22,86
1.045 _MAX
26,54
.480 ± .020
12,19 ± 0,51
SUGGESTED PCB LAYOUT
1
5
Weight . . . . . . . . . . . . . .17.7 grams
Pan Size . . . . . . . . . . . . . . .25/tray
.800
20,32
For More Information :
10X ^.110
2,79
10X
.025
0,64
±
±
.002
0,05
Dimensions: ^Inches
mm
Unless otherwise specified, all tolerances are ± ^.010
0,25
UNITED STATES UNITED KINGDOM
(Worldwide)
(Northern Europe)
12220 World Trade Drive 1 & 2 Huxley Road
San Diego, CA 92128 The Surrey Research Park
U.S.A.
Guildford, Surrey GU2 5RE
http://www.pulseeng.com United Kingdom
TEL: [phone]
TEL: [phone]
FAX: [phone]
FAX: [phone]
FRANCE
(Southern Europe)
Zone Industrielle
F-39270
Orgelet
France
TEL: [phone]
FAX: [phone]
SINGAPORE
(Southern Asia)
150 Kampong Ampat
#07-01/02
KA Centre
Singapore 368324
TEL: [phone]
FAX: [phone]
TAIWAN, R.O.C.
(Northern Asia)
3F-4, No. 81, Sec. 1
HsinTai Wu Road
Hsi-Chih, Taipei Hsien
Taiwan, R.O.C.
Tel: [phone]
FAX: [phone]
HONG KONG
DISTRIBUTOR
(China/Hong Kong)
9/F, Phase 2, Tai Sang
Shatin Warehouse Centre
6 Wong Chuk Yeung Street
Fotan, Shatin, Hong Kong
TEL: [phone]
FAX: [phone]
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.
Printed on recycled paper. ©2003, Pulse Engineering, Inc. All Rights Reserved.
T616.A (10/03)