U Interface Transformer (2B1Q Coding Applications)
Designed for use with Motorola MC145572
Turns Ratio (
+
3 % ) (Line : Chip)
PARAMETER
MIN.
MAX.
1.25 : 1
REINFORCED INSULATION
UNITS
Primary Inductance
(Line Side)
Pins 1 to 5 with 2 & 4 shorted.
26.3
29.7
12
8
mH
ohms
ohms
V
RMS
Flammability: Materials used in
the production of these units
meet requirements of UL94-VO
and IEC 695-2-2 needle flame
test.
Schematic Diagram
PRI
lin e
SEC
d e vice
Primary DC Resistance
Secondary DC Resistance
Isolation (Hi-Pot)
DC Bias
Return Loss 10KHz & 25 KHz
Longitudinal Balance
(281 Hz to 40 KHz)
NOTE:
Operating Temp. Range -40
0
C to +85
0
C
Primary is Line Side (Pins 1,2,4,5)
Secondary is Chip Side (Pins 7,8,9)
Surge Voltage Capability
Metallic Voltage: 800 V peak, 10/560
µS
Longitudinal Voltage: 2400 V peak, 10/700
µS
3000
80
20
mA
dB
55
dB
1.070
(27.18)
REF.
.900
(22.86)
REF.
.570
(14.48)
MAX.
.470
(11.94)
MAX.
1
Top View
2
10
9
8
7
6
1.19
(30.23)
3
4
5
.920
(23.37)
MAX.
.040
(1.02)
TYP.
.150
(3.81)
TYP.
.150
(3.81)
.080
(2.03)
.090
(2.29)
TYP.
Physical Dimensions
inches (mm)
.180
(4.57)
1.10 (27.94)
1.04 (26.42)
Notch Indicates Pin #1
RHOMBUS P/N: T-13221G
CUST P/N:
DATE: 7/2/96
NAME:
SHEET:
1 of 1
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
RHOMBUS-IND [ Rhombus Industries Inc. ]
