B0726-EL

Document 443
ADSL Transformers
The B0726-E and C1350-A ADSL transformers have
been approved by Broadcom for use with their BCM6335,
BCM6338, BCM6345, and BCM6348 ADSL CPE Modem
chipsets and their BCM6301 5-Volt Line Driver.
These transformers feature split windings for chip receive,
chip transmit and line side. They offer 1875 Vrms isolation,
Part ADSL Inductance2
DCR max
number1 Annex ±5% (µH)
(Ohms)
For Broadcom ADSL
CPE Modem chipsets
low DC resistance, low leakage inductance and excellent
total harmonic distortion. Their compact design makes them
suitable for high density applications.
Coilcraft can also custom design transformers to meet
your specific requirements. For free evaluation samples,
contact Coilcraft or visit www.coilcraft.com.
LeakageInterwinding
inductance3 capacitance4
Turns ratioTHD5
chip tx : chip rx chip tx : line typ (dB)
max (µH)
(pF)
B0726-EL_
A
400
0.815 (1 – 3) (2 – 4)
0.232 (5 – 7) (6 – 8)
0.831(16 – 11) (14 – 9)
18.0
22.0
1 : 4.25
1 : 4.25
–95.0
C1350-AL_
B
100
18.0
22.0
1 : 4.25
1 : 4.25
–93.0
0.815 (1 – 3) (2 – 4)
0.232 (5 – 7) (6 – 8)
0.831 (16 – 11) (14 – 9)
1. When ordering, please specify a packaging code:
C1350-ALD
Packaging:D =13″ machine ready reel. EIA-481 embossed plastic
tape (200 per full reel).
B
=Less than full reel. In tape, but not machine ready.
To have a leader and trailer added ($25 charge), use
code letter D instead.
2. Inductance measured at 10 kHz, 0.1 Vrms, 0 Adc between pins 9 and 16
with pins 11 and 14 connected.
3. Leakage inductance measured at 100 kHz, 0.1 Vrms between pins 9 and
16 with all other pins shorted.
4. Capacitance tested between pins 1 and 16 with all other pins shorted.
5. Total harmonic distortion measured at 30 kHz.
6. Operating temperature range −40°C to +85°C.
7. Electrical specifications at 25°C
0.500 max
12,70
Chip
transmit
1
16
0.020 (12×)
0,51
0.550 max
13,97
8
Dimensions are in
0.067
1,70
0.134
3,40
0.590
14,99
1
Recommended
Land Pattern
0.004 / 0,10
0.650max
16,51
Chip
receive
0.201
5,10
9
inches
mm
0.039
1,00
0.134
3,40
0.099
2,51
0.099
2,51
0.067
1,70
5
9
7
6
14
8
1
16
11
Line
side
3
2
4
0.670
17,02
Weight 6.1 – 6.3 g
Terminations Tin-silver over tin over nickel over phos bronze
Tape and reel 200/13″ reel Plastic tape: 32 mm wide, 0.5 mm thick,
20 mm pocket spacing, 13.05 mm pocket depth
PCB washing Tested with pure water or alcohol only. For other solvents,
see Doc787_PCB_Washing.pdf
US +1-847-639-6400 [email protected]
UK +44-1236-730595 [email protected]
Taiwan +886-2-2264 3646 [email protected]
China +86-21-6218 8074 [email protected]
Singapore + 65-6484 8412 [email protected]
Document 443 Revised 10/08/08
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
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