Marvell Semiconductor 88C3000 And 88C3100 Fact Sheet

Business Wire, August 25, 1998

SAN JOSE, Calif.--(BUSINESS WIRE)--Aug. 25, 1998--Competitive highlights for Marvell's 88C3000 and 88C3100 PRML read channels include the smallest chip size on the market (12 mm2), highest data rate with lowest power dissipation, migratable architecture and nearly 100 percent test coverage.

88C3000 and 88C3100

--   Support data rates from 70 Mb/s up to 350Mb/s with a clear path
     for HDD integration and data rates beyond 700Mb/s.

--   Provide increased performance at process technology milestones
     without compromising time-to-market.

--   Maintain constant architecture of proven designs with minimal pin
     and register changes to significantly reduce drive development
     time as process technology migrates.

--   Ensure excellent signal-to-noise (SNR) performance with over 2dB
     gain for EPR4 and 4dB for Noise Predictive Viterbi (NPV) compared
     to PR4, and support user bit densities (UBD) in a range from 1.8
     to 3.0.

--   Offer automated channel optimization tools for ease-of-use and
     hands-on technical support throughout disk drive development.

--   Provide robust signal conditioning capabilities with a 7-pole
     anti-aliasing low pass filter, 6-bit flash A/D converter, 5-tap
     programmable digital FIR followed by a 3-tap
     adaptive/programmable FIR.

--   Include a precision charge pump and loop filter for timing
     recovery with no external components required.

--   Offer synchronous and asynchronous servo modes and up to 6-burst
     servo demodulation accessible as either analog signals or 10-bit
     digital values.

--   Operate both in 3.3V and 5V environments.

88C3000

The 88C3000 family in 0.35 microns CMOS is designed with highest data rates in mind. It comprises the 88C3000 100-pin TQFP package with data rate at 350 Mb/s and the lower cost version 88C3020 64-pin TQFP running at 300 Mb/s. Power dissipation for the 88C3000 scales linearly with data rate and typically consumes 1.0W at 350 Mb/s. The 88C3000 has a selectable PR4 and EPR4 Viterbi with 8/9 or 16/17 ENDEC and is designed for user bit densities (UBD) of 1.8 to 2.5.

88C3100

The 88C3100 is the sister product of the 88C3000 that implements 85% of 88C3000 circuitry plus significant enhancements such as a full 16-state NPV with trellis code slated for UBD of 2.5 and higher. The 88C3100 family comprises the 88C3100 100-pin TQFP package with a data rate at 300 Mb/s and the lower cost version 88C3120 64-pin TQFP running at 250 Mb/s. The 88C3100's 2dB gain in SNR means increased linear density (bits per inch) which automatically translates to higher capacity per drive.

    Competitive Analysis of Current High Performance PRML Channels

---------------------------------------------------------------------------
  Product  Analog CMOS    BiCMOS   Marvell's 88C3000  Marvell's 88C3100
                                         Family              Family
---------------------------------------------------------------------------
  Process     0.35         0.35           0.35                0.35
            microns      microns        microns             microns
                                         1P/2M               1P/2M
                                      Digital CMOS        Digital CMOS
---------------------------------------------------------------------------
   Data       240        200-320          350                 300
---------------------------------------------------------------------------
   Power                              greater than        greater than
@Data rate                               0.6W @               0.6W @
                                       200 Mbits/s         200 Mbits/s

          greater than  greater than      1.0W                1.1W
               1.7W         1.7W       350 Mbits/s         300 Mbits/s
           240 Mbits/s  300 Mbits/s
---------------------------------------------------------------------------
 Chip Area  14-20 mm2   14-24 mm2   less than 12 mm2    less than 14 mm2
---------------------------------------------------------------------------

           (Sources: Marvell, IEEE & Data Storage)

Note to Editors: A chart showing total power dissipation measurements is available upon request.

CONTACT: Pacifico, Inc.

Patricia Colby, 408/293-8600

pcolby@pacifico.com

or

Marvell Semiconductor, Inc.

Matt Ahangi, 408/222-2542

ahangi@marvell.com