Rainbow-electronics MAX3805 Manual do Utilizador

Consulte online ou descarregue Manual do Utilizador para Comunicação Rainbow-electronics MAX3805. Rainbow Electronics MAX3805 User Manual Manual do Utilizador

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General Description
The MAX3805 is designed to provide up to 30in
(0.75m) reach on 6-mil differential FR-4 transmission
line, or up to 24ft (8m) on RG-188A/U type coaxial
cable, for PRBS data from 9.95Gbps to 10.7Gbps. The
MAX3805 adaptive equalizer reduces intersymbol inter-
ference, resulting in 20ps residual jitter after equaliza-
tion. An internal feedback network controls the
equalizer to automatically match frequency-dependent
skin effect and dielectric losses. The MAX3805 pro-
vides LVCMOS-compatible output-enable and signal-
detect functions.
The MAX3805 has separate supply connections for the
internal logic and I/O circuits. This allows the current-
mode logic (CML) input and CML output to be connect-
ed to isolated supplies for independent DC-coupled
interfaces to 1.8V, 2.5V, or 3.3V ICs. The MAX3805
comes in a very small 3mm x 3mm package and con-
sumes only 135mW.
Applications
OC-192, 10GbE Switches and Routers
OC-192, 10GbE Serial Modules
High-Speed Signal Distribution
Features
3mm x 3mm Package
Spans 30in (0.75m) of 6-mil FR-4
Spans 24ft (8m) of Coax
Automatic Receive Equalization to Reduce ISI
Caused by Path Losses
Up to 10.7Gbps NRZ Data Operating Range
Signal-Detect Output
Output-Enable Control
135mW Power Consumption
DC-Coupled Input and Output to Terminations as
Low as 1.65V
Differential or Single-Ended Operation
+3.3V Core Power Supply
MAX3805
10.7Gbps Adaptive Receive Equalizer
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
19-2936; Rev 0; 7/03
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
PART TEMP RANGE
PIN-
PACKAGE
PACKAGE
CODE
MAX3805ETE -40°C to +85°C 16 Thin QFN T1633F-3
MAX3805
Tx
Rx
10Gbps
CDR/SERDES
10Gbps
SWITCH
FR-4 STRIPLINE
FR-4 STRIPLINE
SDI
2
2
V
CC1
V
CC
V
CC2
SDO
+3.3V
2.5V
2
Rx
Tx
1.8V
2
SDI
V
CC1
V
CC
V
CC2
SDO
2
1.8V
22
+3.3V
PC BOARD
BACKPLANE
2
2.5V
SD EN
SD EN
MAX3805
LINE CARD SWITCH CARD
Typical Operating Circuit
Pin Configuration appears at end of data sheet.
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Resumo do Conteúdo

Página 1 - Typical Operating Circuit

General DescriptionThe MAX3805 is designed to provide up to 30in(0.75m) reach on 6-mil differential FR-4 transmissionline, or up to 24ft (8m) on RG-18

Página 2 - OPERATING CONDITIONS

MAX380510.7Gbps Adaptive Receive EqualizerMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxi

Página 3 - MAX3805 toc03

MAX380510.7Gbps Adaptive Receive Equalizer2 _______________________________________________________________________________________ABSOLUTE MAXIMUM RA

Página 4 - MAX3805 toc10

MAX380510.7Gbps Adaptive Receive Equalizer_______________________________________________________________________________________ 3Note 1: Differentia

Página 5 - Pin Description

MAX380510.7Gbps Adaptive Receive Equalizer4 _______________________________________________________________________________________EQUALIZER OUTPUT EY

Página 6 - Functional Diagram

Detailed Description andApplications InformationThe MAX3805 adaptive equalizer is designed to oper-ate with 9.95Gbps to 10.7Gbps PRBS nonreturn-to-zer

Página 7 - Signal Detect

MAX3805Input Stage with EqualizationThe low-noise input stage of the MAX3805 includes twoamplifiers, one with flat frequency response and theother wit

Página 8 - Chip Information

frequency components remain essentially intact. Thesechanges in the spectral characteristic of the signal atthe output of the path are measured with t

Página 9 - Package Information

MAX380510.7Gbps Adaptive Receive Equalizer8 _______________________________________________________________________________________16 15 14 13VCCLFPDH

Página 10 - PACKAGE OUTLINE

MAX380510.7Gbps Adaptive Receive EqualizerPackage Information(The package drawing(s) in this data sheet may not reflect the most current specification

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