ADSL LINE TRANSFORMERS
Recommended by Analog Devices for use with their
AD20msp918 ADSL Chipset
Excellent THD performance in a small footprint
Designed to UL1950 and EN60950 supplementary insula-
tion requirements for working voltages up to 250 Vrms
Electrical Specifications @ 25°C — Operating Temperature 0°C to 70°C
Part
Number
B2104
B2105
2
Mounting
THT
SMT
Turns Ratio
(± 2%)
1:1.27
1:1.27
OCL @ 10 KHz, 0.1 V
(MIN)
(1-4) with 2-3 shorted
(10-7) with 8-9 shorted
1.80
1.80
2.90
2.90
Leakage Inductance
@ 100 KHz, 0.1 V (MAX)
(1-4) with 2-3, 8-9, 10-7 shorted
7.5 µH
7.5 µH
Longitudinal
Balance
(30 KHz - 1.1 MHz)
50 dB MIN
50 dB MIN
Additional Specifications
Part
Number
B2104
2
B2105
1
2
THD Typical
(Linearity)
-80 dB @ 30 KHz
Load Resistance
(Ω)
100
100
DC Resistance
(1-4), (10-7)
2
Ω
MAX
2
Ω
MAX
Isolation Voltage
(Vrms)
1500
1500
Insertion Loss
1
(dB @ 100 KHz)
<0.5
<0.5
FrequencyResponse:
± 1.0 dB MAX, from 30 KHz to 1.1 MHz.
Transformers are shipped in trays, unless Tape & Reel packaging is specified by adding the suffix
“T”
to this part number (B2105T)
Mechanicals
B2104
B2105
10 X .028
± .002
0,71
± 0,05
.695
17,65 MAX
.530
13,46
MAX
.394
10,00
MAX
10 X .051
± .002
1,30
± 0,05
.605
15,37
.100
2,54
.394
10,00
.098
2,50
B2104
Date Code
Country of Mfg.
B2105
Date Code
Country of Origin
.098
2,50
.500
12,70MAX
.516
13,11MAX
.485
12,32
MAX
.173 ± .015
4,39 ± 0,38
10 X
.018
0,46
.394
10,00
.550
13,97MAX
.098
2,50
.394
10,00
.547
13,89MAX
.475
12,07
MAX
.005/0,13
10 SURFACES
Schematic
1
3
2
4
10
8
9
7
HONG KONG
(China/Hong Kong)
9/F, Phase 2, Tai Sang
Shatin Warehouse Centre
6 Wong Chuk Yeung Street
Fotan, Shatin, Hong Kong
TEL: 852 2788 6588
FAX: 852 2776 1055
Weight
. . . . . . . . . . . . . .6.2 grams
Tray
. . . . . . . . . . . . . . . . . .60/tray
Dimensions:
Inches
Unless otherwise specified, all tolerances are ± .010
mm
0,25
For More Information :
UNITED STATES
(Worldwide)
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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
SINGAPORE
(Southern Europe) (Southern Asia)
Zone Industrielle
F-39270
Orgelet
France
TEL: 33 3 84 35 04 04
FAX: 33 3 84 25 46 41
150 Kampong Ampat
#07-01/02
KA Centre
Singapore 368324
TEL: 65 6287 8998
FAX: 65 6280 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 trademarks or registered trademarks of their respective owners.
Printed on recycled paper. ©2003, Pulse Engineering, Inc.
B950.A (10/03)
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