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T-1318 Datasheet, PDF (1/1 Pages) Rhombus Industries Inc. – HDSL2 TRANSFORMER
PARAMETER
Turns Ratio1
Inductance2
1 : 2.3 +3%
1.75 +8%
UNITS
mH
T-1318
HDSL2
TRANSFORMER
Longitudinal Balance
20 kHz to 600 kHz
50 min.
dB
Primary DCR (Pins 7-9)
2.9 Max.
Ω
Secondary DCR (Pins 5-2 or 4-1) 3.6 Max.
Ω
Frequency Response
40kHz - 300kHz
+0.2
dB
Insertion Loss @ 100kHz
0.3
dB
Isolation (HI-POT)
Primary DC
3000
160
VRMS
mA
Designed for HDSL2 applications
Compatible with Level One
SK70740/41/42
Low Profile "Touch Tone" design
A Surface Mount version of this
transformer is available
SCHEMATIC DIAGRAM
7
5
Return Loss @ 100kHz
16.5 min.
dB
THD
(10 KHz, 4.95VRMS)
-75 Min.
dB
1. Chip Side : Line Side (Short pins 2 & 4).
2. Line Side, Pins (1-5) with 2,4 shorted@ 10KHz and 100 mV
Operating Temp. Range -400C to +850C
Surge Voltage Capability:
CHIP 8
2
LINE
4
9
1
Line Side Pins 5 - 2, 4 - 1
Chip Side Pins 7-9
Primary is Chip Side
Secondary is Line Side
Metallic Voltage: 800 V peak, 10/700 µS
Longitudinal Voltage: 2400 V peak, 10/560 µS
Physical Dimensions in inches (mm)
POSITION GRID
(P.C. PATTERN, COMPONENT SIDE)
.800
(20.32)
.150
(3.81)
TYP.
.060 DIA.
(1.52)
TYP.
Rhombus
Industries Inc.
Transformers & Magnetic Products
Notch on bobbin indicates pin #1
12/19/00
15801 Chemical Lane, Huntington Beach, CA 92649
Phone: (714) 898-0960
www.rhombus-ind.com
FAX: (714) 896-0971