ADSL LINE TRANSFORMERS
For Use With Centillium Chipsets
For use with Centillium's CopperFlite鈩?CT-L50SC04/CT-L50ST81
and CopperLite鈩?CT-L21SC08/CT-L41SC04 chipsets
Excellent THD performance
Small footprint
Electrical Specifications @ 25擄C 鈥?Operating Temperature -40擄C to +85擄C
Part
Number
B2178
B2189
Mounting
SMT
SMT
Matched to
Chipset Number
CT-L21SC08/CT-L41SC04
CT-L50SC04/CT-L50ST81
Application
CO
CO/CPE
Turns Ratio
(鹵 2%)
(line - chip)
1:1
1.8:1
OCL
(鹵 10%)
(1-4) with (2-3) short
450 碌H @ 10 KhZ, 0.1 V
450 碌H @ 30 KhZ, 0.1 V
Leakage Inductance
@ 100 KhZ, 0.1 V
(1-4) with (2-3), (7-10) and (8-9) short
5.0 碌H MAX
7.0 碌H MAX
Additional Electrical Specifications
Part
Number
B2178
B2189
THD
(Linearity TYP - 10 kHz, 3.0 Vrms)
-67 dB
-67 dB
攏
DC Resistance
Line Side
(1-4) with (2-3) short
W
Chip Side
(10-7) with (9-8) short
W
Isolation Voltage
(Vrms)
1500
1500
Longitudinal Balance
(from 10 kHz to 1.1 MHz)
-50 dB
-50 dB
攏
NOTE: Transformers are shipped in trays unless Tape & Reel packaging is specified by adding the suffix
鈥淭鈥?/div>
to the part number (i.e. B2178T).
Mechanical
10 X .028
鹵 .002
0,71
鹵 0,05
.695
17,65 MAX
.530
13,46
MAX
.394
10,00
MAX
10 X .051
鹵 .002
1,30
鹵 0,05
.605
15,37
.100
2,54
.394
10,00
.098
2,50
Schematics
B2178
1
3
2
4
10
8
9
Date Code
Country of Mfg.
B21XX
.098
2,50
1:1
B2189
7
.516
13,11MAX
.485
12,32
MAX
1
3
2
4
10
8
9
1.8:1
7
.005/0,13
10 SURFACES
Weight
. . . . . . . . . . . . . .6.2 grams
Tray
. . . . . . . . . . . . . . . . . .60/tray
Dimensions:
Inches
mm
Unless otherwise specified,
all tolerances are 鹵 .010
0,25
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
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. 漏2001, Pulse Engineering, Inc.
PRELIMINARY B979.P (4/01)
攏
W
攏
攏
W
1.3
1.3
MAX
MAX
1.3
0.9
MAX
MAX
攏
攏
攏
DISTRIBUTOR
1
