RHOMBUS-IND T-977

UNITS
T-977
135
Ω
HDSL
TRANSFORMER
Inductance 1
2.75+ 6%
mH
Designed for HDSL applications
Longitudinal Balance
5 kHz to 292 kHz
50 min.
dB
Compatible with Level One SK70704
Primary DC Resistance Pins (2-4)
3.2 Max.
Ω
Low Profile "Touch Tone" design
Secondary DC Resistance (6-8) or (8-10)
3.0 Max.
Ω
Frequency Response
40kHz - 300kHz
+0.2
dB
Insertion Loss @ 100kHz
0.3
dB
Isolation (HI-POT)
2000
VRMS
Primary DC
75
mA
Return Loss @ 100kHz
20 min.
dB
THD
(5 KHz, 6Vp-p 135 Ω)
-75 Min.
dB
PARAMETER
Turns Ratio
1CT : 1.8CT +3%
Line Impedance
A Surface Mount version of this
transformer is available
SCHEMATIC DIAGRAM
4
6
8 SEC
PRI 3
2
10
Line Side Pins 6-10
Chip Side Pins 4-2
1. Line Side, Pins (10-6), @ 10KHz and 100 mV
Primary is Chip Side
Secondary is Line Side
Operating Temp. Range -400C to +850C
Surge Voltage Capability:
Metallic Voltage: 800 V peak, 10/700 µS
Physical Dimensions in inches (mm)
Longitudinal Voltage: 2400 V peak, 10/560 µS
POSITION GRID
(P.C. PATTERN, COMPONENT SIDE)
.800
(20.32)
.150
(3.81)
TYP.
.060 DIA.
(1.52)
TYP.
Notch on bobbin indicates pin #1
1/22/96
Rhombus
Industries Inc.
Transformers & Magnetic Products
15801 Chemical Lane, Huntington Beach, CA 92649
Phone: (714) 898-0960
FAX: (714) 896-0971
www.rhombus-ind.com