Fiber Channel Coupling Transformers

25.6 MBPS ATM
FILTERS MODULES & SMD
ISOLATION TRANSFORMERS
*
*
*
*
Designed to meet ATM 25.6 PHY specifications.
Designed to Support the SEEQ 93C95 PHY Interface.
Provides the Cable Isolation & Impedance Matching for 100 Ohm UTP Applications
Surface Mount Package.
Return Loss
(dB Min)
PART
NUMBER
1-17MHz 17-25Mhz
PM-7583
-16
-9
Comm-Comm
Rejection
(dB Min)
12KHz
5MHz 20MHz 200MHz MAX
Insertion Loss
(dB)
4MHz
16MHz 24MHz
MAX
MAX
MAX
36MHz
MIN 5MHz 16MHz 24MHz
-20 -25
-0.6
-10
-20
-3.0
-1.0
-1.8
Cross Talk
(dB Min)
-50
PM-7583 MECHANICAL
-46
600
PM-7583 SCHEMATIC
RECOMMENDED P.C.B. LAYOUT
Dimensions in mm
16 x 2.54
-50
HI-POT
(Vrms Min)
TX+ 1
6.7
1:1
1:1
TX- 2
1
15 RX+
16
7 x 2.54
16 x 1.02
CTX1 3
CTX2 4
14 CRX1
Low Pass
Filter
Low Pass
Filter
GND 5
8
9
14
P
M
1
2
13
12
11
10
11
UTP TX+ 7
10 UTP RX-
UTP TX- 8
9 UTP RX+
PM-7583
100BASE-TX MAGNETICS
PHYSICAL DIMENSIONS ................... IN mm
15
13 CRX2
12 GND
6
16
16 RX-
9
PM-7583
YYWW
3
4
5
6
7
8
25.4
4.80
5.70
0.66
TYP
2.54
TYP
0.25
TYP
12.5
Specifications subject to change without notice.
pm-758x 7/98
20381 BARENTS SEA CIRCLE, LAKE FOREST, CA 92630  TEL: (949) 452-0511  FAX: (949) 452-0512  http://www.premiermag.com
1
25.6 MBPS ATM
FILTERS MODULES & SMD
ISOLATION TRANSFORMERS
*
*
*
*
Designed to meet ATM 25.6 PHY specifications.
Designed to Support the SEEQ 93C95 PHY Interface.
Provides the Cable Isolation & Impedance Matching for 100 Ohm UTP Applications
Surface Mount Package.
ELECTRICAL SPECIFICATIONS AT 25OC - OPERATING TEMPERATURE RANGE 0OC TO 70OC
PART
NUMBER
TRANSMIT
TURNS
RATIO
(1-3 : 16-14)
RECEIVE
TURNS
RATIO
(11-9 : 6-8)
1:1
1 : 2CT
PM-7582
PRIMARY
OCL
H Min.)
Interwinding
Capacitance
Cw/w
pF Max.)
3000
Leakage
Inductance
Llk
H Max.)
55
DC Resistance
DCR
HI-POT
 Ohms Max.) (Vrms Min)
1.6
1.30
APPLICATIONS
SCHEMATIC
TYPICAL APPLICATION CIRCUIT
+2
PM-7582
SEEQ 93C95
Rx
1
3
+26
1:1
6

Vcc
11
4
RJ45
(UTP)
5
6
1
7
28 -27
14
2CT:1
1
1

15
2
1
8
14
13
12
11
10
9
PRI.
SEC.
1
1
1
1
SEC.
PRI.
7
9
15
1
3
-3
Tx
9
16
16
1
2CT:1
1
49.9

CHASSIS GROUND
DIGITAL GROUND
18 16


SCHEMATIC DIAGRAM
1:1
Vcc
Vcc
1500
1
2
3
4
5
6
1
7
8
8
ANALOG GROUND
DIMENSIONS
PHYSICAL DIMENSIONS ................... IN INCHES (mm)
16
15
14
13
12
11
10
9
RECOMMENDED P.C.B. LAYOUT
Dimensions in inches (mm)
.420 (10.67)
16x.075 (1.91)
P
M
.270 (6.86)
7x.050 (1.27)
PM-7582
YYWW
1
16
16x.025 (.64)
.350 (8.89)
1
2
3
4
5
6
7
8
8.80
12.70
6.80
8
9
4.80
5.70
0.30
TYP
1.27
TYP
0.25
TYP
9.40
Specifications subject to change without notice.
pm-758x 7/98
20381 BARENTS SEA CIRCLE, LAKE FOREST, CA 92630  TEL: (949) 452-0511  FAX: (949) 452-0512  http://www.premiermag.com
2