Return
Package Insertion Attenuation Loss CrosstalkCommon Mode Rejection
Part Number Type Loss (dB MIN)
1 to10 MHz 1 to 30 MHz(db MIN)
(Pins) 1 to 10 MHz 30-50 MHz 50-100 MHz 100 Ω
15 Ω (db MIN)
(dB MAX) TX RX TX RX (db MIN) 50 MHz 100 MHz
78Z034CNL DIL (16) -1.0 -30 -15 -35 -20-15 -30-35 -30
Dimensions: Inches
mm
Unless otherwise specified, all tolerances are .010
0,25
10BASE-T THROUGH HOLE
INTERFACE MODULES
For 802.3 10Base-T LAN Applications
Mechanica Sl chematic
Electrical Specifications @ 25 C Operating Temperature 0C to 70 C
Meet or exceed IEEE 802.3 10Base-T
specifications
For MAUs, hubs, and motherboard
applications
High performance for maximum EMI
suppression
Minimum 1500 Vrms isolation per
IEEE 802.3 requirement
Compatible with multiple 10Base-T chips
Peak solder temperature rating per
tables 5-2 in IPC/JEDEC J-STD-020
CHIP SIDE
116
314
1:1
15
2
161
89
1:1
10
7
LOW
PASS
FILTER
LOW
PASS
FILTER
UTP SIDE
100 Ω
100 Ω
Weight . . . . . . . . . . . . . .2.5 gram s
Tube . . . . . . . . . . . . . . . . .29/tube
.700
17,78
.100 TYP
2,54
.400 MAX
10,16
Date Code Country of Origin
.800 MAX
20,32
.300
7,62
.250 MAX
6,35
.130
3,30 .010 x .020
0,25 0,51
.300
7,62
SOLDERABLE
LEADS
78Z034CNL
U.S.A:
TEL 619 674 810
0
•
EUROPE:
TEL 441 483 428 87
7
•
ASIA
:
TEL 886 7 821 314
1
•
WEB:
www.pulseeng.com
1 E104.F (8/10)
USA 858 674 8100 • Germany 49 7032 7806 0 • Singapore 65 6287 8998 • Shanghai 86 21 32181071 • China 86 755 33966678 • Taiwan 886 3 464371 5
1a
www.pulseeng.com
1. MSL = Moisture Sensitivity Level a=1 b=2 c=3 d=4
Application Notes
Pulses interface modules provide the complete analog solution for
10Base-T multiport applications in various packages. Each module
includes low pass filters, isolation transformers, and may contain
common mode chokes. The 78Z034CNL contains data and pre-equal-
ization resistors on the transmit channel; and the receive
channel is terminated with impedance matching resistors.
Electrical Functions Include:
1. Impedance Matching -The low pass filters, in
conjunction with selected resistor values, effectively match
the impedance characteristics of the IC to those of the
transmission line. Precision wound inductors help control
passband impedances and lower return loss parameters. The
proper cut-off frequency minimizes insertion loss and delay
distortion while maximizing attenuation in the stopband.
2. EMI Suppression-The filter module is designed to control
signal harmonics and jitter, reflections, crosstalk interferences,
and common mode noise, which may contribute to radiated
and conducted emissions. High impedance common mode
chokes significantly minimize their effects.
3. Equipment Isolation - The transformer is designed to
withstand 2000 Vrms, ensuring protection from static charge
on the twisted pair line. Each module is fully tested to ensure
compliance with IEEE 802.3 1993 standards.
In some applications, such as multiport repeaters, many channels are
in close proximity. User compliance with FCC/CISPR22 Class B
requirements can be achieved by applying rigorous design guidelines
to suppress noise mechanisms. Attention to high frequency signal
paths, good PCB grounding techniques, and component placements
are critical.
A typical Network Interface Card Application is featured below.
UTP
DB-15
Vcc
AUI
XFMR
AUI
Port
10 Base-T
Transceiver
1.2 KΩ
61.9 Ω
422 Ω
61.9 Ω
Receive
Filter
MDI
Port
RJ-45
TXD+
CD
XMT
XMT
XMT
RCV
RCV
Transmit
Filter
78Z034CNL
422 Ω
TD+
TD-
RD+
RD-
XMT
XMT
XMT
CD
RCV
RCV
49.9 Ω
49.9 Ω
TXP+
TXD-
TXP-
RXI+
RXI-
Vcc
Typical Application Circuit
10BASE-T THROUGH HOLE
INTERFACE MODULES
For 802.3 10Base-T LAN Applications
Note: Modules are packaged in tubes.
www.pulseeng.com 2 E104.F (8/10)
For More Information:
Pulse Worldwide
Headquarters
12220 World Trade Dr.
San Diego, CA 92128
U.S.A.
www.pulseeng.com
Tel: 858 674 8100
Fax: 858 674 8262
Pulse Europe
Zeppelinstrasse 15
D-71083 Herrenberg
Germany
Tel: 49 7032 7806 0
Fax: 49 7032 7806 135
Pulse China Headquarters
B402, Shenzhen Academy of
Aerospace Technology Bldg.
10th Kejinan Rd.
High-Tech Zone
Nanshan District
Shenzen, PR China 518057
Tel: 86 755 33966678
Fax: 86 755 33966700
Pulse North China
Room 2704/2705
Super Ocean Finance Ctr.
2067 Yan An Rd. West
Shanghai 200336
China
Tel: 86 21 62787060
Fax: 86 2162786973
Pulse South Asia
135 Joo Seng Rd.
#03-02
PM Industrial Bldg.
Singapore 368363
Tel: 65 6287 8998
Fax: 65 6287 8998
Pulse North Asia
3F, No. 198
Zhongyuan Rd.
Zhongli City
Taoyuan County 320
Taiwan R. O. C.
Tel: 886 3 4356768
Fax: 886 3 4356823 (Pulse)
Fax: 886 3 4356820 (FRE)
Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names
mentioned herein may be trademarks or registered trademarks of their respective owners. © Copyright, 2010. Pulse Engineering, Inc. All rights reserved.
