1076

Modem Coupling Transformer
Turns Ratio ( + 3 % )
1 :1
PARAMETER
MIN.
Primary Inductance
TYP.
MAX.
UNITS
Schematic Diagram
(1)
12
H
Pins 1-2.
PRIMARY
Primary DC Resistance
97.2
108
118.8
ohms
108
120
132
ohms
Pins 1-2
Secondary DC Resistance
SECONDARY
1
4
2
3
Pins 4-3
Isolation (Hi-Pot)
1250
Frequency Response
200 Hz to 4 KHz
-0.25
VAC
+0.25
dB
Return Loss
300 Hz to 3000 Hz
20
dB
Longitudinal Balance:
200 to 1000 Hz
1000 to 4000 Hz
60
60
dB
dB
Insertion Loss
1.75
2.0
Total Harmonic Distortion
at 600 Hz, -10 dBm
2.25
88.1
dB
Physical
Dimensions
dB
inches (mm)
.750
(19.05)
3
4
1.05
(26.67)
MAX.
2
2
1.03
(26.16)
MAX.
.450
(11.4)
1
3
Bottom
View
1
4
.550
(14.0)
Freq
-10dBm 0 dBm +4.7 dBm
300 Hz
-83 dB
-81 dB
-77 dB
600 Hz
-86 dB
-85 dB
-84 dB
RHOMBUS P/N: T-1076
CUST P/N:
DATE: 05/19/98
Rhombus
Industries Inc.
Transformers & Magnetic Products
NAME:
SHEET:
1 of 1
15801 Chemical Lane, Huntington Beach, CA 92649
Phone: (714) 898-0960
FAX: (714) 896-0971
www.rhombus-ind.com