The PE-68056NL is designed for use with most transceivers requiring
a turns ratio of 1:1 on transmit. The E2009QNL is designed for use with DEC
and most other transceivers requiring a turns ratio of 1:1.414 on transmit.
Typical Applications Circuit
E2009QNL, PE-68056NL
Application Notes
Each module in this application contains low pass filers, isolation
transformers, and common mode chokes. These components provide
impedance matching, equipment isolation, and EMI suppression to
comply with IEEE 802.3 requirements. The E2001QNL, E2003QNL,
E2007QNL, PE-68025QNL and PE-68027QNL also provide the
necessary data and pre-emphasis resistors recommended by most
transceiver manufacturers.
User compliance with FCC/CSPR Class B requirements can be
achieved by applying rigorous design guidelines to suppress noise
mechanisms. Attention to high frequency signal paths, proper
PCB grounding techniques, and component placement are critical.
Pins 5 and 12, when grounded, provide noise return paths. For
PE-68025QNL, PE-68026NL, and PE-68027QNL, one of these pins
(typically pin 12) must be decoupled with a bypass capacitor. The
E2001QNL, E2003QNL, E2007QNL, E2009QNL, and PE-68056NL
do not require the bypass capacitor, and pins 5 and 12 may be
connected directly to ground.
Recommended module orientation with respect to the RJ-45
connector is illustrated in each application circuit. Output pins 6
through 11 should be routed with short, matched traces to the
connector for optimum EMI performance.
Surface mount devices manufactured by Pulse are designed
to meet all published specifications after exposure to surface
mount soldering temperatures. The products in this data sheet are
transfer molded or open header in IC-style packaging, making them
robust enough to withstand convection and infrared reflow solder
temperatures up to 245°C. In addition, compliant leads provide
excellent solder-joint reliability with a coplanarity of ±.002” (0,05mm).
For Tape & Reel orders, please add the suffix “T” to the end of the
part number (i.e.PE-68025QNLT).
TXP-
TXD-
TXP+
TXD+
1
3
ANALOG INTERFACE MODULE
5
6
7
8
2
TD-
TD+
UTP
1
Transceiver Chip
LPF
LPF
3 RD+
6
RD-
LPF
LPF
RJ-45
CONNECTOR
RXI+
RXI-
16
100W
14
13
12
11
10
9
NOTE:
Resistors
NOT
included in this module.
For More Information:
Pulse Worldwide
Headquarters
Pulse Europe
Pulse China Headquarters
Einsteinstrasse 1
12220 World Trade Dr. D-71083 Herrenberg
San Diego, CA 92128 Germany
U.S.A.
www.pulseeng.com
Tel: 858 674 8100
Fax: 858 674 8262
B402, Shenzhen Academy of
Aerospace Technology Bldg.
10th Kejinan Rd.
High-Tech Zone
Nanshan District
Shenzen, PR China 518057
Tel: 49 7032 7806 0
TEL: 86 755 33966678
Fax: 49 7032 7806 135 FAX: 86 755 33966700
Pulse North China
Room 1503
XinYin Building
No. 888 YiShan Rd.
Shanghai 200233
China
Tel: 86 21 54643211/2
Fax: 86 21 54643210
Pulse South Asia
135 Joo Seng Rd.
#03-02
PM Industrial Bldg.
Singapore 368363
Pulse North Asia
No. 26, Kao Ching Rd.
Yang Mei Chen
Taoyuan Hsien
Taiwan
R. O. C.
Tel: 886 3 4643715
Fax: 886 3 4641911
TEL: 65 6287 8998
FAX: 65 6280 0080
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.
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