15801 C h e mical Lane, Hunting ton Be a c h, CA 92649
P h o ne : (714) 898-0960
FAX: (714) 896-0971
Rhombus
Transformers & Magnetic Products
Indu stries Inc.
123
4
5
10
9
8
76
PARAMETER UNITS
Turns Ratio 2 : 1 +
1%
Line Impedance 135 Ω
Inductance (Line Side) 3.0 +
6% mH
Longitudinal Balance
40 kHz to 200 kHz 53 min. d B
Primary DC Resistance 2.5 Max. Ω
Secondary DC Resistance 1.0 Max. Ω
Frequency Response +
0.2 dB
40kHz - 300kHz
Insertion Loss @ 200kHz 0.4 d B
Isolation (HI-POT) 2000 V
RMS
Primary DC 160 mA
Return Loss @ 40kHz 20 min. dB
THD -70 Min. dB
(40 KHz, 14 dBm)
T-982
HDSL
TRANSFORMER
Designed for HDSL applications
Compatible with Brooktree BT8921
& BT8970 at 784 kbps
Custom versi ons of this
transformer are available.
A Surface Mount version of this
transformer is available
Physical Dimensions in inches (mm)
www.rhombus-i nd.com
6/02/00
Coils finished with UL rated varnish.
Designed to meet the s upplementary
insulation requirements of UL1950 for a
working voltag e of 250V
9
7
1
4
2
5
Line Side Pins 1-4 + 2-5
Device Side Pins 9-7
SCHEMATIC
PIN POSITION GRID 0.100 (2.54)
HOLES FOR BOBBIN PINS