EPF8019GM [PCA]
100 Base-X Interface Module; 100 BASE- X接口模块
| 型号： | EPF8019GM |
| 厂家： | 
PCA ELECTRONICS INC. |
| 描述： | 100 Base-X Interface Module |
| 文件： | 总2页 (文件大小：56K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
100 Base-X Interface Module
EPF8019GM
E L E C T R O N I C S I N C .
• Optimized to work with ML6692/94 PHY chip •
• Guaranteed to operate with 8 mA DC bias at 70°C on cable side •
• Complies with or exceeds IEEE 802.3, 100 BX Standards •
• Robust construction allows for severe soldering processes •
Electrical Parameters @ 25° C
Insertion Loss
Return Loss
(dB Min.)
Common Mode Rejection
Crosstalk (dB Min.)
[Between Channels]
OCL
(µH Min.)
(dB Max.)
(dB Min.)
1-100
MHz
1-80
MHz
80-100
MHz
1-30
MHz
30-60
MHz
60-100
MHz
1-30
MHz
30-100
MHz
100-200
MHz
100 KHz, 0.1 Vrms
8 mA DC Bias @ 70°C
Cable Side
Xmit Rcv Xmit Rcv Xmit Rcv Xmit Rcv Xmit Rcv Xmit Rcv Xmit Rcv Xmit Rcv
-1 -1 -2 -2 -18 -18 -12 -12 -8 -10 -40 -40 -30 -30 -25 -25
350
-40
•
Isolation : 1500 Vrms • Cable Impedance : 100 Ω •
Schematic
Transmit Channel
Receive Channel
1:1:1
2CT:1
16
10
7
8
1
15
13
Cable Side
Chip Side
Cable Side
Chip Side
2
3
9
12
Dimensions
Package
(Inches)
Min. Max. Nom.
(Millimeters)
A
Nom.
Dim.
Min.
Max.
A
B
C
D
E
F
G
H
I
.970
.380
.225
---
.990
.400
.245
---
.980
.390
.235
.700
.013
.100
.510
.020
.010
.140
---
.035
.030
.100
.090
.560
24.64 25.15 24.89
(J)
N
9.65 10.16
9.91
5.97
17.78
.330
2.54
5.72
---
6.22
---
Pin 1
I.D.
PCA
EPF8019GM
Date Code
Pad
.010
---
.015
---
.254
---
.381
---
B
E
Q
P
Layout
.500
.018
.008
---
0°
.025
.520
.022
.012
---
8°
.045
12.70 13.20 12.95
.457
.203
---
.559
.305
---
.508
.254
3.56
---
.889
.762
2.54
2.29
14.22
J
D
M
K
L
M
N
P
Q
0°
8°
.635
1.14
K
C
I
L
F
H
G
CSF8019GMa Rev. B 10/20/98
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
Product performance is limited to specified parameters. Data is subject to change without prior notice.
100 Base-X Interface Module
EPF8019GM
E L E C T R O N I C S I N C .
The circuit below is a guideline for interconnecting PCA’s EPF8019GM with ML6692 or ML6694 chip applications. Further
details can be obtained from the chip manufacturer application notes.
Typical insertion loss of the isolation transformer is 0.5dB. This parameter covers the entire spectrum of the encoded
signals in 100 BX protocol. Under terminated conditions, to transmit a 2V pk-pk signal across the cable, you must adjust
the chips supporting resistor to get at least 2.12V pk-pk across the transmit pins.
Note that in the 100 BX application, you need to use only one half of the RCV side primary winding and terminate it with 50 Ω
balanced load as shown.
The phantom resistors shown around the connector have been known to suppress unwanted radiation that unused wires
pick up from the immediate environment. Their placement and use are to be considered carefully before a design is
finalized.
It is recommended that there be a neat separation of ground planes in the layout. It is generally accepted practice to limit
the plane off at least 0.05 inches away from the chip side pins of EPF8019GM. There need not be any ground plane beyond
this plane.
For best results, PCB designer should design the outgoing traces preferably to be 50 Ω, balanced and well coupled to
achieve minimum radiation from these traces.
Typical Application Circuit for UTP
2
1
Xmit
2
7
8
3
Rcv
6
10
9
TX+
TX-
1
3
RJ45*
ML6692
or
ML6694
4
5
50Ω
50Ω
13
12
RX+
RX-
7
8
EPF8019GM
High Voltage
Capacitor
Chassis
Ground
Capacitor
Notes : * NIC Side is shown. Hub side connection will swap pins 3-6 with 1-2.
CSF8019GMb Rev. B 10/20/98
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
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