MAX3802 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – 3.2Gbps Quad Adaptive Cable Equalizer with Cable Driver

19-2289; Rev 0; 1/02
EVAALVUAAILTAIOBNLEKIT _{3.2Gbps Quad Adaptive Cable Equalizer}
with Cable Driver
General Description
The MAX3802 has four independent adaptive cable
equalizers and cable drivers on a single chip. It is
designed for coaxial and twin-axial cable point-to-point
scrambled-data communication applications. The dri-
ver features differential current-mode logic (CML)
inputs and outputs. The equalizer includes differential
CML data inputs and outputs and a TTL loss-of-signal
(LOS) output.
The adaptive cable equalizer can equalize differential
or single-ended signals at data rates up to 3.2Gbps. It
automatically adjusts to attenuation caused by skin-
effect losses of 30dB at 1.6GHz. The equalizer effec-
tively extends the usable length of copper cable in
high-frequency interconnect applications.
Applications
High-Speed Links in Communications and Data
Systems
Backplane and Twin-Axial Cable Interconnects
Category 5 UTP-Based Systems
Digital Video Systems
Pin Configuration appears at end of data sheet.
3.3V
Features
o Single 3.3V Operation
o Four Independent Equalizers and Drivers
o 725mW at 3.3V Typical Power Dissipation
o Data Rates Up to 3.2Gbps
o Equalizer Automatically Adjusts for Different
Cable Lengths
o 0 to 30dB Equalization at 1.6GHz (3.2Gbps)
o Loss-of-Signal (LOS) Indicator
o On-Chip Input and Output Terminations
o Low External Component Count
o 0°C to +85°C Operating Temperature Range
o ESD Protection on Cable Inputs and Outputs
PART
MAX3802UGK
*Exposed pad
Ordering Information
TEMP RANGE
0°C to +85°C
PIN-PACKAGE
68 QFN*
Typical Application Circuit
3.3V
EP*
V_CC
4
DIN_
DOUT_
4
CARD 1
MAX3802
4 ^EOUT_
EIN_
4
LOS_ RMOD_ CIM_
4
4
4
R_{MOD_}
COAX, TWIN-AX, OR PC BOARD x 4
COAX, TWIN-AX, OR PC BOARD x 4
EP*
V_CC
4
EIN_
EOUT_
4
MAX3802
CARD 2
4
DOUT_
DIN_
4
LOS_ RMOD_ CIM_
4
4
4
R_MOD_
THIS SYMBOL INDICATES A CONTROLLED-IMPEDANCE TRANSMISSION LINE.
*EP MUST BE SOLDERED TO GROUND FOR
PROPER THERMAL AND ELECTRICAL PERFORMANCE.
________________________________________________________________ Maxim Integrated Products 1
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.