© Coilcraft, Inc. 2007
Specifications subject to change without notice.
Please check our website for latest information.
© Coilcraft, Inc. 2007
Document 222-1
Document 222-1
Revised 1/11/01
These transformers have been designed to provide
optimum performance with the ADSL chip sets from a
variety of leading manufacturers.
They feature a compact size, minimum DC resistance
and very low leakage inductance. Primary inductance is
stable from -40°C to +85°C and the longitudinal balance
is optimized for the best overall performance at the
ADSL transmission speed. Most parts have been de-
signed to meet UL 1950 requirements.
For free evaluation samples or to discuss custom de-
signs, please contact Coilcraft.
1. All electrical specifications referenced to line side.
2. Operating temperature range -40°C to +85°C.
3. Electrical specifications at 25°C.
Line side
Leakage
Part
inductance
inductance
DCR max (Ohms)
number
Style
Chip set
(mH)
max (µH)
Chip side
Line side
AS8426-A
Leaded
Alcatel DynaMiTe MTK-20140
0.410 ± 10%
6.5
0.130 (10-8), 0.095 (9-7) 0.200 (1-3, 2-4)
AS8446-A
SMT
Alcatel DynaMiTe MTK-20140
0.410 ± 10%
6.5
0.130 (10-8), 0.095 (9-7) 0.200 (1-3, 2-4)
AS8696-B
Leaded
Alcatel DynaMiTe MTK-20140
0.442 ± 5%
5.0
0.375 (10-8), 0.310 (9-7) 0.425 (1-3, 2-4)
AS8697-B
SMT
Alcatel DynaMiTe MTK-20140
0.442 ± 5%
5.0
0.375 (10-8), 0.310 (9-7) 0.415 (1-3, 2-4)
AS8425-A
Leaded Motorola MC145660/MS143462SK
3.96 ± 5%
18
2.42 (10-6), 1.87 (9-7)
2.53 (1-4, 2-5)
AS8397-B
SMT
Motorola MC145660/MS143462SK
3.96 ± 5%
18
2.42 (10-6), 1.87 (9-7)
2.53 (1-4, 2-5)
AS8578-A
Leaded
TI TNETD4000R/3000R
1.5 ± 5%
18
0.800 (1-4)
3.75 (10-7)
AS8579-A
SMT
TI TNETD4000R/3000R
1.5 ± 5%
18
0.800 (1-4)
3.75 (10-7)
Dielectric
Longitudinal
THD
Part
strength
Turns ratio
Capacitance
balance
@ 20 kHz
Designed
number
(V)
line:chip
max (pF)
min (dB)
typ (dB)
to meet
AS8426-A
3000
2:1
N/A
45 (30 kHz - 1.1 MHz)
-77
UL 1950
AS8446-A
2300
2:1
N/A
45 (30 kHz - 1.1 MHz)
-77
UL 1950
AS8696-B
3000
1:1
N/A
45 (30 kHz - 1.1 MHz)
-84
UL 1950
AS8697-B
2300
1:1
N/A
45 (30 kHz - 1.1 MHz)
-84
UL 1950
AS8425-A
1875
1.2:1
N/A
40 (20 kHz - 1.1 MHz)
-92
UL 1950
AS8397-B
1875
1.2:1
N/A
40 (20 kHz - 1.1 MHz)
-92
UL 1950
AS8578-A
1875
1.42:1
35.0
40 (20 kHz - 1.1 MHz)
-85
UL 1950
AS8579-A
1875
1.42:1
35.0
40 (20 kHz - 1.1 MHz)
-85
UL 1950
ADSLTransformers
For Alcatel, Motorola
and TI chip sets
This product is not RoHS-compliant. Contact Coilcraft
for current status or possible alternatives.
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