10 Base-T Interface Module
with all Resistors Integrated
ELECTRONICS INC.
EPE6121G
• Optimized for AMD 79C940 (MACE) •
• Robust construction allows for the toughest reflow processing •
• Complies with or exceeds IEEE 802.3, 10 Base-T Requirements •
Electrical Parameters @ 25° C
Cut-off
Frequency
(MHz)
±
1.0
MHz
Xmit
17
Rcv
17
Insertion
Loss
(dB Max.)
1-10
MHz
Xmit
-1
Rcv
-1
•
Return
Loss
(dB Min.)
5-10
MHz
Xmit
-15
Rcv
-15
@ 20
MHz
Xmit
-7
Rcv
-5
Attenuation
(1)(dB Min.)
@ 25
MHz
Xmit
-18
Rcv
-11
@ 30
MHz
Xmit
-30
Rcv
-18
@ 40
MHz
Xmit
-35
Rcv
-26
Common Mode
Rejection
(dB Min.)
@30- 100
MHz
Xmit
-30
Rcv
-30
@ 200
MHz
Xmit
-30
Rcv
-30
Crosstalk
(dB Min.)
@ 1-10
MHz
Xmit
-35
Rcv
-35
Isolation
: meets or exceeds 802.3 IEEE Requirements •
Characteristic Filter Impedance
: 100
Ω
•
• 1) Referenced to the filter output @ 5MHz, for filter only, excluding resistor network. •
Schematic
1
2
1.21KΩ
3
61.9Ω
4
422Ω
5
Chip Side
UTP Side
LPF
1:1
61.9Ω
422Ω
8
100Ω
6
Transmit Channel
16
49.9Ω
15
49.9Ω
14
12
Chip Side
UTP Side
LPF
1:1
Receive Channel
9
100Ω
11
Package
A
J
Pin 1
I.D.
PCA
EPE6121G
Date Code
Dim.
Dimensions
(Inches)
Min. Max. Nom.
.890
.360
.360
.700
.005
.100
.490
.016
.008
.090
0°
.025
.910
.380
.380
Typ.
.015
Typ.
.510
.020
.012
Typ.
8°
.045
.040
.100
.100
.540
(Millimeters)
Min. Max. Nom.
22.61
9.14
9.14
17.78
.127
2.54
12.45
.406
.203
2.29
0°
.635
23.11
9.65
9.65
Typ.
.381
Typ.
12.95
.508
.305
Typ.
8°
1.14
1.02
2.54
2.54
13.72
N
B
Q
Pad
Layout
P
D
E
M
C
K
L
I
A
B
C
D
E
F
G
H
I
J
K
L
M
N
P
Q
H
F
G
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
CSE6121Ga Rev. 1
9/5/97
Product performance is limited to specified parameters. Data is subject to change without prior notice.
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
PCA [ PCA ELECTRONICS INC. ]
