PARAMETER
TURNS RATIO (10-7) : (9-6) 1 : 1 +1%
Tie7-9, (10-6) : (1-5) 2.2 : 1 +1%
Inductance
1
UNITS
3.0 +6%
10.0 Max.
1.26 Max
1.26 Max
0.66 Max
-70
55 Min.
100 Max
mH
µH
Ω
Ω
Ω
dB
ADSL Line
Interface
Transformer
Designed to meet supplementary insula-
tion requirements of IEC950 for working
voltage of 250 Vrms
Schematic Diagram
Leakage Inductance
2
DCR Pins 10 -7
DCR Pins 9 - 6
DCR Pins 1 - 5
THD
3
PRI
10
SEC
1
Longitudinal Balance
at 20 kHz to 250 kHz
Interwinding Capacitance
Isolation
1 to 10, (tie 7-9)
dB
pF
7
9
2050
VAC
6
5
1. Tested @ 10 kHz and 1.0 VAC (Pins 10-6) With 7-9 shorted, and
100mADC.
2. Tested @ 100 kHz and 100 mVAC (Pins 10-6) With7-9, 1-5 shorted.
3. Tested @ 40kHz - 1.65VrmsVAC across Pri, 28 ohm load, 135 ohm
input, tie (7-9)
Operating temperature range -40
o
C to + 85
o
C
Physical Dimensions
inches (mm)
.522
(13.26)
MAX.
.532
(13.51)
MAX.
10
.715
(18.15)
1
2
3
4
5
.516
(13.1)
MAX.
9
.100
(2.54)
TYP.
Suggested
Pad Layout
7
.100
(2.54)
.028
(0.70)
.025
(0.64)
.516
(13.1)
.675 (17.15)
.663 (16.85)
.050
(1.27)
TYP.
6
.100
(2.54)
TYP.
Rhombus P/N:
Cust. P/N:
Date:
9/13/99
T-1274G
Name:
Sheet:
1 of 1
Rhombus
Industries Inc.
Transformers & Magnetic Products
www.rhombus-ind.com
15801 Chemical Lane,
Huntington Beach, CA 92649-1595
Phone: (714) 898-0960
z
FAX: (714) 896-0971