ADSL LINE TRANSFORMERS
For Texas Instruments’ CPE Chipsets
ADSL/ADSL2+ CPE Transformers for POTS and ISDN
applications, matched to Texas Instruments AR7, AU7
and AP7 chipset
Designed to meet EN60950 supplementary insulation
requirements for working voltages up to 250Vrms
Electrical Specifications @ 25°C — Operating Temperature -40°C to +85°C
RoHS-5 Compliant
Part Number
BX2479H
BX2479W
BX2243H
1
RoHS-6 Compliant
Part Number
BX2479HNL
BX2479WNL
BX2243HNL
1
OCL
(mH ±5%)
1.50
1.50
0.40
0.40
0.10
Turns Ratio
(Line:Chip)
2:1
2:1
2:1
2.1
2:1
Isolation Voltage
(Vrms)
1500
1500
1500
1500
1500
THD @ 30kHz
(dB MIN)
-85
-85
-80
-80
-84
BX2243W
1
BX2900W
1
BX2243WNL
1
BX2900WNL
1
NOTE: 1.
Optional Tape & Reel packaging can be ordered by adding a
"T"
suffix to the part number (ex: BX2479WT and BX2479WNLT).
Mechanicals
BX2479H / BX2243H
(and NL versions)
BX2479W / BX2243W / BX2900W
(and NL versions)
10 X .028
± .002
0,71
± 0,05
.695
17,65 MAX
.525
13,34
MAX
BX2479W / BX2243W
BX2900W
Date Code
Country of Origin
.605
15,37
.100
2,54
.394
10,00
MAX
10 X .051
± .002
1,30
± 0,05
.485
12,32
MAX
.475
12,07
MAX
.005/0,13
10 SURFACES
Date Code
Country of Mfg.
BX2479H
BX2243H
.098
2,50
.394
10,00
.098
2,50
.500
12,70MAX
.173 ± .015
4,39 ± 0,38
.394
10,00
.550
13,97MAX
.555
14,10MAX
10 X
.020
0,51
.098
2,50
.394
10,00
.547
13,89MAX
Weight
. . . . . . . . . . . . . .6.2 grams
Tray
. . . . . . . . . . . . . . . . . .60/tray
Weight
. . . . . . . . . . . . . .6.2 grams
Tray
. . . . . . . . . . . . . . . . . .65/tray
Dimensions:
Inches
mm
1
2:1
10
8
9
7
CHIP
Unless otherwise specified, all tolerances are ± .010
0,25
Schematic
LINE
3
2
4
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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.
© Copyright, 2006. Pulse Engineering, Inc. All rights reserved.
www.pulseeng.com
B834.D (8/06)