Document 394 -1
VDSL Transformers
For Ikanos
SmartLeap
These surface mount transformers are designed spe-
cifically for use with the Ikanos SmartLeap chipset
series for high-speed telecom applications.
They are available in 6-pin and 8-pin versions for both ANSI
and ETSI standards. They all feature 60 dB minimum
longitudinal balance,
−75
dB maximum harmonic distor-
tion and 1500 V winding-to-winding isolation.
Coilcraft can also custom engineer transformers to meet
your specific requirements. For free evaluation samples,
contact Coilcraft or visit
www.coilcraft.com.
Part
number
1
B0233-AL_
C0971-AL_
B0709-BL_
B0749-BL_
Standard
ANSI
ANSI
ETSI
ETSI
Number Inductance
2
of pins
±10% (µH)
6
8
6
8
200
200
200
200
DCR max (Ohms)
pri
sec
1.00
0.913
0.913
0.913
0.184
0.154
0.113
0.113
Leakage
Turns
Stray
inductance
3
ratio
Capacitance
4
capacitance
5
max (µH) line : chip
max (pF)
max (pF)
1.00
0.70
0.70
0.70
3
:
1
3
:
1
7
:
2
7
:
2
10.0
25.0
25.0
25.0
25.0
25.0
15.0
15.0
1. When ordering, please specify
packaging
code:
B0749-BLD
Packaging: D
= 13″ machine-ready reel. EIA-481 embossed plastic tape.
(B0233-AL, B0709-BL: 300 parts per full reel
B0749-BL, C0971-AL: 450 parts 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 C instead.
Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc.
Leakage inductance tested across the primary with the secondary
shorted.
Capacitance tested between windings with 0.1 Vrms applied at 80 KHz.
Stray capacitance tested across the primary with 0.1 Vrms applied at
2.5 MHz.
Operating temperature range
−40°C
to +85°C.
Electrical specifications at 25°C
Schematics
B0233-A, B0709-B
6
Line
side
4
1
Chip
side
3
2.
3.
4.
5.
6.
7.
C0971-A, B0749-B
2
Line
side
3
7
Chip
side
6
Specifications subject to change without notice.
Please check our website for latest information.
Document 394-1
Revised 02/10/05
Document 394-2
VDSL Transformers for Ikanos SmartLeap
B0749-B, C0971-A
0.360
max
9,14
4
5
B0233-A, B0709-B
0.550
max
13,97
0.031
0,80
0.028
0,70
0.394
max
10,00
1
8
0.400
max
10,16
0.098
2,49
0.118
3,0
0.415
max
10,54
0.350
max
8,89
0.004 / 0.10
0.028
0,70
0.067
1,70
0.291
7,40
0.244
6,20
0.004 / 0.10
0.071
1,80
0.11
2,80
0.283
7,20
1
Pinouts
B0233-A
6
0.063
1,60
0.236
6,00
3
4
1
0.098
2,49
0.118
3,0
0.071
1,80
3
B0709-B
4
Recommended
Land Pattern
Recommended
Land Pattern
1
6
Terminations:
Nickel/tin over phos bronze
Tape and reel:
300/13″ reel 32 mm tape width
For packaging data see Tape and Reel Specifications section.
Terminations:
Nickel/tin over phos bronze
Tape and reel:
450/13″ reel 24 mm tape width
For packaging data see Tape and Reel Specifications section.
Specifications subject to change without notice.
Please check our website for latest information.
Document 394-2
Revised 02/10/05
DIY/Open Source Hardware
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