VDSL Transformers
For Use with Broadcom© and Texas
Instruments Chipset
For use with Broadcom’s BCM6315 transceiver chip
B4020, B4021 and BX4055: for use with Texas
Instrument’s TNET800 chipset
Excellent return loss and balance
Surface mount or through hole package
Electrical Specifications @ 25°C - Operating Temperature -40°C to +85°C
Part
Number
B4020 (THT)
Turns
Ratio
1CT:1CT
Inductance
(μH MIN)
190
Return Loss
( dBMIN)
300 kHz to 1 MHz: 18
1 kHz to 11 MHz: 20
11 kHz to 30 MHz: 16
BX4055 (SMT)
B4021 (SMT)
1:1
1CT:1CT
300 kHz to 20 MHz: 20
190
20 kHz to 30 MHz: 18
300 kHz to 1 MHz: 15
BX4056 (SMT)
1:1.16
190
1 kHz to 20 MHz: 20
20 kHz to 30 MHz: 17
Insertion Loss*
( dBMAX)
200 kHz to 1 kHz: 0.8
1 kHz to 30 kHz: 0.7
200 kHz to 400 kHz: 0.75
400 kHz to 30 MHz: 0.50
200 kHz to 400 kHz: 0.75
400 kHz to 30 MHz: 0.60
Line Impedance
(
Ω)
100
Longitudinal
Balance
( dB TYP)
200 kHz: 60
11 MHz: 42
100 MHz: 30
200 kHz: 60
100
11 MHz: 50
100 MHz: 40
200 kHz: 60
100
11 MHz: 50
100MHz: 40
CM Rejection
( dB TYP)
10 MHz: 35
30 MHz: 33
100 MHz: 25
10 MHz: 35
30 MHz: 33
100 MHz: 30
10 MHz: 35
30 MHz: 33
100 MHz: 30
1500
1500
3000
Isolation
Voltage
(Vrms)
Notes: Surge Voltage Capability:
Metallic: 800 Vpeak 10/560 sec. Long: 2400 Vpeak 10/700 sec.
B4020
is designed to meet the requirements for supplementary isolation according
to IEC950. Common Mode Chokes to reduce common mode ingress from AM Broadcast or HAM radios are available. See data sheet
B912
for parts
B4001
and
B4003.
Mechanical
B4020
.500
MAX
12,70
5
3
1
6
B4020
4
Date Code
2
.350
MAX
8,89
.130
3,30
.200
5,08
.250
MAX
6,35
.100
2,54
Schematic
Weight
......................1.2grams
Tube
............................60/tube
Inches
Dimensions:
mm
Unless otherwise specified,
all tolerances are
±
.010
0,25
.400
10,16
USA 858 674 8100
1
Notes: Leads are 24 AWG solderable.
Unused pins not provided.
Germany 49 7032 7806 0
Singapore 65 6287 8998
Shanghai 86 21 62787060
China 86 755 33966678
Taiwan 886 3 4356768
B981.A (02/12)
pulseelectronics.com
VDSL Transformers
For Use with Broadcom© and Texas
Instruments Chipset
Mechanical
(continued)
B4021 / BX4055 / BX4056
Schematic
Weight
......................0.6 grams
Tape & Reel
..................70/reel
Inches
Dimensions:
mm
Unless otherwise specified,
all tolerances are
±
.010
0,25
For More Information
Pulse China Headquarters
Pulse North China
Pulse South Asia
Pulse North Asia
B402, Shenzhen Academy of
Room 2704/2705
135 Joo Seng Road
3F, No. 198
Aerospace Technol-
Super Ocean Finance
#03-02
Zhongyuan Road
ogy Bldg.
Ctr.
PM Industrial Bldg.
Zhongli City
10th Kejinan Road
2067 Yan An Road
Singapore 368363
Taoyuan County 320
High-Tech Zone
West
Taiwan R. O. C.
Nanshan District
Shanghai 200336
Tel: 886 3 4356768
Shenzen, PR China
China
Tel: 65 6287 8998
Fax: 886 3 4356823 (Pulse)
Tel: 858 674 8100
Tel: 49 7032 78060
518057
Fax: 65 6287 8998
Fax: 886 3 4356820 (FRE)
Fax: 858 674 8262
Fax: 49 7032 7806 135
Tel: 86 755 33966678
Tel: 86 21 62787060
Fax: 86 755 33966700
Fax: 86 2162786973
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, 2012. Pulse Electronics, Inc. All rights reserved.
Pulse Worldwide
Headquarters
12220 World Trade Drive
San Diego, CA
92128
U.S.A.
Pulse Europe
Einsteinstrasse 1
D-71083 Herren-
berg
Germany
2
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