ADSL Magnetics
Conexant BT8970 and BT8973
•
Designed for 784 kbps and 1168 kbps HDSL applica-
tions
Designed to meet IEC 950 safety requirements for
supplementary insulation at 250V
Minimum interwinding breakdown voltage of 1500 Vrms
•
Reliability testing: shock, vibration, temperature cycling,
temperature - humidity - bias
•
•
•
•
Operating temperature range: -40° C to +85° C
Meets IEC 695, 2-2 flammability requirements
PWB Process Capability: standard printed wiring board
assembly techniques, total-immersion cleaning
TM00307
•
ELECTRICAL SPECIFICATIONS AT 25° C
Turns Ratio
± 2%
Inductance
2
mH ±6%
Leakage
Inductance
3
µH max
Line Side
11
11
DCR
Ω
max
Chip
Side
1
1
Line
1
Side
2.3
2.3
Longitudinal
Balance
db min
40 kHz -
200 kHz
53
53
Insertion
Loss
4
dB max
200 kHz
0.5
0.5
Frequency
Response
4
dB
40 kHz -
200 kHz
± 0.1
± 0.1
Harmonic
Distortion
4
dB max
40 kHZ
14 dBm
-70
-70
Part Number
Package
Application
Kbps
Chip : Line
1
S560-6600-68
0560-6600-J6
SMD
THT
784
784
1:2
1:2
Line Side
1
3
3
1. connect 2 to 4
2. measure at 10 kHz, 0.1V
3. connect 2 to 4 and 7 to 9
4. 135
Ω
line impedance
Part Number
Package
Application
Kbps
Turns Ratio
± 2%
Inductance
2
mH ±10%
Leakage
Inductance
3
µH max
Line Side
10.5
10.5
DCR
Ω
max
Chip
Side
1
1
Line
1
Side
2.55
2.55
Longitudinal
Balance
db min
40 kHz -
300 kHz
53
53
Insertion
Loss
4
dB max
40 kHz
0.5
0.5
Frequency
Response
4
dB
40 kHz -
500 kHz
± 0.1
± 0.1
Harmonic
Distortion
4
dB max
40 kHZ
1.85 Vrms
-70
-70
Chip : Line
1
S560-6600-L7
0560-6600-60
SMD
THT
1168
1168
1:2
1:2
Line Side
1
2
2
1. connect 2 to 4
2. measure at 10 kHz, 0.1V
3. connect 2 to 4 and 7 to 9
4. 135
Ω
line impedance
SCHEMATIC
S560-6600-68
0560-6600-J6
S560-6600-L7
0560-6600-60
LINE SIDE
2
9
1
4
CHIP SIDE
5
7
©2000 Bel Fuse Inc. Specifications subject to change without notice. 10.00
Bel Fuse Inc.
198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
T3-27
ADSL Magnetics
TM00307
Conexant BT8970 and BT8973
MECHANICAL
SUGGESTED PCB PAD LAYOUT
1
5
S560-6600-68
S560-6600-L7
0.741
(18.82)
0.060
(1.52)
0.028 (0.71)
0.540
(13.72)
MAX
0.100
(2.54)
10
0.100 (2.54)
6
0.087
(2.21)
0.585
(14.86)
MAX
0.500
(12.70)
MAX
0.005 (0.13)
10 EDGES
0.606 (15.39)
0.699 (17.75)
MAX
1
5
0560-6600-J6
0560-6600-60
10
0.550
(13.97)
MAX
6
0.525
(13.34)
MAX
0.500
(12.70)
MAX
0.110±0.010
(2.79±0.25)
0.098 (2.50)
0.020 (0.508) SQ. TYP
(PHOSPHER BRONZE,
SOLDER COATED
0.394
(10.00)
©2000 Bel Fuse Inc. Specifications subject to change without notice. 10.00
CORPORATE
Bel Fuse Inc.
198 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
FAR EAST
Bel Fuse Ltd.
8F / 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
EUROPE
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Fax 44-1772-888366
www.belfuse.com
T3-28