PCA EPA1951

10Base-T Interface Module
ELECTRONICS INC.
EPA1951 & EPA1951G
• Optimized for SMC 83C795
• Robust construction for reflow processes
• Complies with or exceeds IEEE 802.3, 10Base-T Standards
• Transmit : 7 Pole Balanced Low Pass, 100 Ω
• Receive : 5 Pole Balanced Low Pass, 100 Ω
• 1500 Vrms Isolation
Electrical Parameters @ 25° C
*Cut-Off
Frequency
Insertion Loss
(dB Max.)
Return Loss
(dB Typ.)
± 1.0
1-10 MHz
5-10 MHz
@ 25 MHz
@ 30 MHz
@ 40 MHz
@ 50 MHz
1-500 MHz
1-100 MHz
1-10 MHz
Xmit/Rcv
Xmit/Rcv
Xmit/Rcv
Xmit/Rcv
Xmit/Rcv
Xmit/Rcv
Xmit
Rcv
Xmit to Rcv
-15/-15
-5/-5
-10/-10
-16/-16
-20/-20
38
30
-35
16.5 MHz
-1.5/-1
Attenuation
(dB Min.)
Crosstalk
(dB Min.)
CMRR
(dB Min.)
• *Referenced to Fundamental Frequency @ 5 MHz (Without Internal Resistors) •
Schematic
Transmit Channel
Receive Channel
62Ω
1
8
261Ω
2
1:1
LPF
2.4KΩ
2.2MΩ
7
5
2.2MΩ
3
16
1:1
51Ω
LPF
15
9
12
10
11
51Ω
62Ω
6
4
14
261Ω
SMD Package
DIL Package
.900
(22.86)
.030
(.762)
.100
(2.54)
Pin 1
I.D.
PCA
EPA1951G
Date Code
.400
(10.16)
.560
(14.22)
PCA
EPA1951
Date Code
.100 (2.54)
Pad
Layout
Pin 1 I.D.
.055
(1.40)
.910 Max.
(23.11)
.700
(17.78)
.005/.015
(.127/.381)
.440
(11.18)
.410
Max.
(10.41)
.450
Max.
(11.43)
.008/.012
(.203/.305)
0°-8°
.020
(.508)
.016/.020
(.406/.508)
.100
(2.54)
.030
(.762)
.525
(13.33)
.100
(2.54)
Leads : .018 x .012
.120
Min.
(3.05)
.300
(7.62)
Unless Otherwise Specified Dimensions are in Inches /mm ± .010 /.25
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
Product performance is limited to specified parameters. Data is subject to change without prior notice.
CSA1951 & CSA1951G
Rev. L
11/10/03
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com