Country of Mfg.
Weight . . . . . . . . . . . . . .6.2 grams
Tray . . . . . . . . . . . . . . . . . .60/tray
For More Information :
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.
ADSL LINE TRANSFORMERS
For Use With Centillium Chipsets
Dimensions:
Inches
mm
Unless otherwise specified,
all tolerances are ±
.010
0,25
Turns Ratio OCL Leakage Inductance
Part
Mounting
Matched to
Application (± 2%) (± 10%) @ 100 KhZ, 0.1 V
Number Chipset Number
(line - chip)
(1-4) with (2-3) short (1-4) with (2-3), (7-10) and (8-9) short
B2178 SMT CT-L21SC08/CT-L41SC04 CO
1:1
450 µH
@ 10 KhZ, 0.1 V
5.0 µH MAX
B2189 SMT CT-L50SC04/CT-L50ST81 CO/CPE
1.8:1
450 µH
@ 30 KhZ, 0.1 V
7.0 µH MAX
Part THD
DC Resistance
Isolation Voltage Longitudinal Balance
Number (Linearity TYP - 10 kHz, 3.0 Vrms)
Line Side Chip Side
(Vrms) (from 10 kHz to 1.1 MHz)
(1-4) with (2-3) short (10-7) with (9-8) short
B2178 ≤ -67 dB ≤ 1.3 Ω MAX ≤ 1.3 Ω MAX 1500 ≤ -50 dB
B2189 ≤ -67 dB ≤ 1.3 Ω MAX ≤ 0.9 Ω MAX 1500 ≤ -50 dB
NOTE: Transformers are shipped in trays unless Tape & Reel packaging is specified by adding the suffix “T” to the part number (i.e. B2178T).
Electrical Specifications @ 25°C — Operating Temperature -40°C to +85°C
Additional Electrical Specifications
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Orgelet
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Taiwan, R.O.C.
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FAX: 886 2 2698 0948
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(Southern Asia)
150 Kampong Ampat
#07-01/02
KA Centre
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FAX: 65 6280 0080
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(China/Hong Kong)
9/F, Phase 2, Tai Sang
Shatin Warehouse Centre
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Fotan, Shatin, Hong Kong
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FAX: 852 2776 1055
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