MODEL HT81 SERIES
HDSL, HDSL2
Coupling Transformers
NEW PRODUCT
FEATURES AND BENEFITS
•
•
•
•
•
•
•
Supports industry standard HDSL transceivers
Excellent total harmonic distortion characteristics
Meets standard dielectric withstanding voltage requirements
Conforms to ANSI, ITU and ETSI standards
Supports Level One and Conexant (Rockwell) chips
Operating temperature range of -40°C to +85°C
Can be customized to meet unique specifications
APPLICATIONS
• Designed for 784 Kb/s and 1168 Kb/s applications
• Designs available for multiple data rates
• HDSL coupling transformer
Specifications subject to change without notice.
6
6-149
Model HT81 Series
ELECTRICAL @ 25°C
Part
Number
HT81-00552 (4)
HT81-00553 (4)
HT81-00628 (9)
HT81-00629 (9)
HT81-00630 (9)
HT81-00631 (4)
HT81-00632 (4)
HT81-00633 (4)
HT81-99628 (1)
HT81-99647 (2)
HT81-99648 (3)
HT81-99649 (3)
HT81-99650 (4)
HT81-99651 (1)
HT81-99709 (2)
HT81-99710 (4)
HT81-99711 (4)
HT81-99721 (2)
HT81-99722 (4)
HT81-99723 (4)
HT81-99724 (1)
Line
Rate
Kb/s
2320
1552
272
416
528
1808
2064
2320
784
784
1168
784
1168
1168
1168
1552
1168
784
1168
1168
784
Turns Ratio
Line-Chip
1:1:1
2.3:1
1:1:1 ct
1:1:1 ct
1:1:1 ct
2.3:1
2.3:1
2.3:1
1.8 ct:1 ct
1:1:1 ct
1:1:2 ct
1:1:2 ct
1:1:1 ct
1.8 ct:1 ct
1:1:1 ct
2.3:1 ct
3:1 ct
1:1:1
1:1:1
2.3:1
1.8:1 ct
Open Circuit
Return
Inductance
Loss
Line Side
(5)
@ Mid Band
mH Min.
dB Min.
1.0
1.6
8.0
5.0
3.5
1.3
1.1
1.0
2.8
3.0
2.0
3.0
2.0
2.06
2.0
2.0
2.0
3.0
2.0
2.0
3.0
≥16.5
80-580kHz
≥16.5
20-560kHz
≥15
9-40kHz
≥16.5
20-80kHz
≥16.5
33-110kHz
≥16.5
80-580kHz
≥16.5
80-580kHz
≥15.5
80-580kHz
≥20
40-200kHz
≥20
40-200kHz
≥16.5
40-320kHz
≥20
40-200kHz
≥16.5
40-320kHz
≥16.5
40-320kHz
≥12
40-320kHz
≥16.5
40-320kHz
≥12
40-320kHz
≥16.5
40-320kHz
≥16.5
40-320kHz
≥16.5
40-320kHz
≥16.5
40-320kHz
Insertion
Loss
@ 40kHz
dB Max.
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Longitudinal
Balance
(8)
dB Min.
55
40-320kHz
55
20-320kHz
65
40-320kHz
65
40-320kHz
65
40-320kHz
55
40-320kHz
55
40-320kHz
55
40-320kHz
50
5-196kHz
55
40-320kHz
55
40-320kHz
50
5-196kHz
55
40-320kHz
50
40-320kHz
55
40-320kHz
65
40-320kHz
65
40-320kHz
55
40-320kHz
55
40-320kHz
55
40-320kHz
50
40-320kHz
THD
(6)
dB Max.
-70
-70
-70
-70
-70
-65
-65
-70
-75
-70
-75
-75
-70
-70
-70
-70
-70
-70
-70
-70
-70
Fig.
2 or 3
3
1
1
1
2 or 3
2 or 3
2 or 3
1
1
1
1
1
1
1
1
1
2 or 3
2 or 3
2 or 3
2 or 3
Sch.
2
5
3
3
3
2
2
2
1
2
3
3
2
4
3
3
2
2
2
2
2
6-150
Model HT81 Series
SCHEMATICS
Schematic 1
2
10
9
Schematic 2
1
2
Schematic 3
9
Chip
3
8
Line
Chip
8
4
2
Line
Chip
3
8
7
Line
4
6
7
5
4
6
Schematic 4
2
10
9
Schematic 5
1
Chip
3
9
7
Line
Chip
7
8
4
2
Line
4
6
6
5
Notes: (1) Supports Level One SK70704 with DCR
≤3.2/2.0 Ω
IDC @ 75mA. Assume pins 7-8 shorted externally.
(2) Supports Conexant (Rockwell) BT8921, BT8970 with DCR
≤2.2/2.2 Ω,
IDC @ 70mA.
(3) Supports Conexant (Rockwell) BT8952 with DCR
≤2.2/4.4 Ω,
IDC @ 160mA.
(4) Supports Level One SK70740, SK70741 and SK70742 HDSL chipset with DCR
≤2.2/2.2 Ω,
IDC @ 70mA.
(5) OCL tested @ 100mV @ 10kHz with appropriate IDC.
(6) THD tested @ 5kHz, 6Vp-p with 135Ω load.
(7) Supports Level One SK70720 and SK70721 with DCR
≤3.0/6.0 Ω,
IDC @ 75mA.
(8) Longitudinal balance: freqency range specified with 135
Ω.
(9) Supports Conexant (Rockwell) BT8960 with DCR
≤3.0/3.0 Ω,
IDC @ 70mA.
6
6-151
Model HT81 Series
OUTLINE DIMENSIONS (Inch/mm)
Figure 1 – Through-Hole
.950
24.13
Max.
.500
12.7
Max.
.15
3.81
Typ.
1
2
3
4
5
1.050
26.67
Max.
10
9 .780
8 19.81
7 Max.
6
HT81-99628
Bobbin Lead:
.042(1.07mm) x
.015 (.381mm)
Typ.
.800
20.32
Nom.
.18
4.57
Nom.
Unless otherwise specified tolerances are:
±
.010
0.25
Figure 2 – Through-Hole
HT81-99722
.526 Max.
13.36
.020
0.51
(10 X)
.394
10.00
.535 Max.
13.59
.185 Max.
4.70
.098
2.50
.394
10.00
.547 Max.
13.89
Unless otherwise specified tolerances are:
±
.010
0.25
6-152
Model HT81 Series
OUTLINE DIMENSIONS (Inch/mm)
Figure 3 – Surface Mount
.695
Max.
17.65
.028±.002
(10X)
0.71±0.05
.605
15.37
.100
2.54
.098
2.50 .394
10.00
.530
Max.
13.46
HT81-00553
.516
Max.
13.11
.051±.002
1.30±0.05
(10X)
.485
Max.
12.32
.475
Max.
12.07
Unless otherwise specified tolerances are:
±
.010
0.25
.005/0.13
10 Surfaces
PACKAGING
Standard:
Plastic Trays
Capacity
Figure 1
Figures 2 & 3
=
=
45 Units
60 Units
6
ORDERING INFORMATION
HT81
Model Series:
HDSL Transformers
99628
S
Surface Mount Option
Factory Code (Package/Schematic)
6-153
Model HT81 Series
