PE-68538G Datasheet PDF - Pulse Engineering
| Part Number | PE-68538G | |
| Description | (PE-6853xG) Fastpulse High Speed LAN Transceivers | |
| Manufacturers | Pulse Engineering | |
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( DataSheet : www.DataSheet4U.com )
FASTPULSE HIGH SPEED
LAN TRANSCEIVERS
High performance transceivers for
ATM 155 Mbps, 100Base-TX, and
TP-FDDI
Integrated drop-in frontend solution
Footprint compatible with popular
LCF 9-pin Fiber Optic Transceivers
Part Number Chart
Part Number
PE-68531G
PE-68532G, PE-68538G
PE-68537G
Note: Also available without metallic case: use suffix “C”, eg. PE-68532C.
Application
TP-FDDI
ATM 155 Mbps
100Base-TX
Standard
ANSI X3T12, TP-PMD
ATM-UNI-PMD STS-3c
IEEE 802.3u PMD
General Description
The FASTPULSE high speed LAN transceivers provide high
performance, cost-effective solutions for ATM 155 Mbps, TP-
FDDI and Fast Ethernet 100Base-TX frontends. The transceivers
interface the standard “fiber” PECL interface to UTP-5 cable,
integrating the transceiver IC, magnetics and connector in the
process. The highly compact design implements the entire
Physical Media Dependent (PMD) circuit in the standard 9-pin
form factor, which reduces component count and board space.
This modular transceiver approach, minimizes the design effort
and risk of implementing 100 Mbps + frontends.
Employing FASTPULSE technology, these transceivers integrate
the full transmit/receive interface functions of signal encoding/
decoding, adaptive equalization, DC restoration, signal filtering,
and isolation. This integrated approach, coupled to the novel
circuit design, results in a high performance frontend which
eliminates many of the conventional design compromises and
parasitic elements which plague high speed designs. The long
design cycle of selecting and optimizing the sensitive analog
IC/magnetic frontend is essentially replaced with a single-shot,
single-device approach. The compact 9-pin footprint matches the
industry standard 9-pin LCF fiber optic transceivers (AMP, HP,
etc.), allowing a common board design to accommodate both
fiber and copper options. The transceiver also allows existing
fiber designs to be upgraded for UTP support with minimal
design effort.
The PE68531G is a TP-FDDI transceiver which adheres to the
ANSI TP-PMD standard and employs MLT3 signaling to
support 100 Mbps (125 Mbaud) over 100 m UTP-5 cable. The
PE68532/38G are ATM transceivers which adhere to ATM-UNI-
PMD standard and employ NRZ signaling to support 155 Mbps
over 100 m UTP-5 cable. The PE-68532G is configured for the
adapter node of a network and the PE-68538G for the switch or
hub node. The PE-68537G is a 100Base-TX transceiver which
adheres to IEEE802.3u standard and employs MLT3
signaling to support 100 Mbps (125 Mbaud) over 100 m of
UTP-5 (2-pair) cable.
Features
s UTP Transceivers for ATM 155 Mbps, TP-FDDI and
100Base-TX
s Drop in replacement for standard 9-pin fiber optic
transceivers
s Full compliance with PMD standards: ATM, ANSI and IEEE
s Supports 100 m of Unshielded Twisted Pair,
Category 5 cable
s Implements full adaptive equalization and baseline
wander correction
s Excellent transmit and receive jitter performance
s EMC optimized design provides for low emissions and
high immunity (ESD protection per IEC 801)
s Direct PECL logic interface to PHY layer chip sets
s Offers simple, low-cost upgrade from existing fiber designs
s Offers flexibility of single UTP/fiber board
s Compact footprint enables efficient single/multiport designs
s 1500 Vrms voltage isolation
s Wavesolder and aqueous wash compatible
s ISO 9001 quality
s Two package options: with metallic case “G” and without
case “C”
Applications
The following products for ATM 155, TP-FDDI or
100Base-TX:
s Network adapter cards (ISA, PCI, VME etc.)
s Hubs or concentrators
s Motherboards (PC, workstation, industrial)
s Bridges, routers, switches
s Switch uplink modules
s LAN analyzers/test equipment
s Point to point links (Telecom)
s Peripherals: storage, print servers, etwc.ww.DataSheet4U.com
U.S.A: TEL 619 674 8100 • EUROPE: TEL 44 1483 401700 • ASIA: TEL 65 287 8998 • WEB: http://www.pulseeng.com
www.DataSheet4U.com
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H309.A (7/96)
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FASTPULSE HIGH SPEED
LAN TRANSCEIVERS
Performance
The following eye pattern measurements show the operation
of the adaptive equalizer and indicate the jitter performance of
the transceivers. All jitter measurements shown are peak values
resulting from combination of Transmit, Receive and
cable contributions. Figure A shows the MLT3 transmit output
waveform for 0 m cable. Figure B shows the waveform at receiver
input after massive attenuation and phase distortion effects of
100m UTP-5. Figure C shows the recovered NRZI data for the
same signal. The same measurements are repeated in Figures D,
E, and F for ATM 155 Mbps NRZ signal.
TP-FDDI/100Base-TX (PE-68531G/37G)
MLT3 Transmit Output (TX±)
Receiver Input (RX±)
NRZI Receiver Output (RD±)
A 0 Meter UTP-5 Cable
500mV/DIV, 2ns/DIV
B 100 Meter UTP-5 Cable
200mV/DIV, 2ns/DIV
C 100 Meter UTP-5 Cable
200mV/DIV, 2ns/DIV
NRZ Transmit Output (TX±)
ATM-155 (PE-68532G/38G)
Receiver Input (RX±)
NRZI Receiver Output (RD±)
D 0 Meter UTP-5 Cable
200mV/DIV, 2ns/DIV
E 100 Meter UTP-5 Cable
100mV/DIV, 2ns/DIV
F 100 Meter UTP-5 Cable
200mV/DIV, 2ns/DIV
Notes:
The PE-68531G/68537G MLT-3 transmit eye pattern is optimized for
minimum overshoot (< 3%) and a 3.5 ns rise time. It has < 1 ns transmit
jitter and as a result of its fast rise time, the receive eye pattern has < 2 ns
of jitter at 100 meters. Similarly, the PE-68532G/38G NRZ transmit eye
pattern has a 3 ns rise time, < 5% overshoot and less than 1 ns of transmit
jitter. Due to its relatively fast rise time and low transmit jitter, the data
dependent jitter from the channel is < 1.6 ns at the receiver output as
shown. There is a trade-off design choice: A faster rise time will minimize
jitter and produce a low bit error rate (BER). In contrast, a fast rise time,
while reducing jitter, can produce excessive overshoot and EMI emissions
when the signal encounters impedance mismatches in the cable or punch
down blocks. The transceivers have been optimized and tested to provide
optimum balance between low BER and minimum emissions.
U.S.A: TEL 619 674 8100 • EUROPE: TEL 44 1483 401700 • ASIA: TEL 65 287 8998 • WEB: http://www.pulseeng.com
5 H309.A (7/96)
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| Information | Total 8 Pages | |
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