PRML Read Channel Physical
Layer Devices
Marvell combines the latest in Digital
Signal Processing (DSP) techniques
with a flexible architecture to address
the read channel physical layer device
requirements of mobile, PC desktop and
enterprise storage applications. The
88C4200 family operates from 60 to 550
Mb/s (Megabits per second) data
transfer
rate,
and
incorporates
selectable data detection features that
can be optimized for either high bit
densities of mobile applications or high
noise environments of desktop and
enterprise disk drives.
The Marvell 88C4200 are fully
integrated
Partial
Response,
Maximum Likelihood (PRML) read
channel physical layer devices,
applying advanced, next-generation
mixed-signal analog and digital
architectures to 0.25 micron CMOS
device technology. The results are low
power consumption and high reliability
in a cost-effective solution.
The 88C4200 products incorporate a
selectable noise-predictive Viterbi
detector, to ensure reliable data
recovery in noisy environments under
a variety of both high and low user bit
densities. A highly efficient 32/34
encoder/decoder, in addition to 8/9,
16/17 and 16/18 Trellis modes, utilizes
precious disk space effectively while
maintaining flexibility. Integrated into the
88C4200 family is a fully synchronous
digital servo detector and modulator
that allows for more efficient position
control encoding to reduce servo
overhead. Robust timing recovery
features such as separate gain, timing
loop and filter settings for data and
servo means a highly reliable
operation in all varieties of customer
applications.
The Marvell Advantage
The Marvell 88C4200 read channel
physical layer family combines Marvell's
innovations in mixed-signal DSP
techniques to state-of-the-art storage
subsystems. Our third generation
integrated read channel product
implemented in all-CMOS design, the
88C4200 is the ideal solution for all disk
drive applications.
As with all Marvell read channel
physical layer devices, the 88C4200 is
accompanied by a complete set of
hardware and software tools to assist
drive engineers with optimizing
their systems. Our worldwide field
applications engineers work closely
with manufacturing teams to deliver
new products quickly. Marvell utilizes
recognized world-leading semiconductor
foundry and packaging services to
reliably deliver high-volume solutions.
88C4200 Family
PRML Read Channel
Physical Layer Devices
Marvell Delivers Performance & Flexibility
for All Data Storage Applications
Copyright 2000 Marvell Technology Group Ltd. All rights reserved. Marvell and the Marvell logo are trademarks of Marvell Technology
Group Ltd. Marvell reserves the right to make changes to specifications and product descriptions at any time without notice.
For more information,
visit www.marvell.com
or contact one of our
regional sales offices:
Features:
General
Data transfer rate:
88C4200: 100 to 550 Mb/s
88C4210: 60 to 380 Mb/s
8/9, 16/17, 16/18 Trellis, and 32/34
encoder/decoder
High-speed serial interface
0.25 micron CMOS
100-pin LQFP, 64-pin LQFP, 0.7mm UTBGA
Power
3.3V supply with option of 2.5V internal regulator
for digital blocks
Register programmable power management for
active, idle and deep sleep modes
Data
Selectable noise-predictive or PR4 detection modes
4-byte sync-mark detection in 16/17, 16/18 and
32/34 modes
Channel statistics for equalization, error rate
detection and quality prediction
Servo
Digital synchronous servo
Up to 6-burst demodulation output
True asynchronous peak detection emulation
Benefits:
Broad range of performance applications
Supports new and legacy encoding schemes
for backward compatibility
Simplifies channel setup and control
High-volume, cost-effective
semiconductor technology
Flexibility for various disk drive applications
3.3V-only system design
Efficient power consumption control
Improved data detection error rates under real
world noise conditions
Robust data retrieval
Easy channel initialization and features for
S.M.A.R.T. drive compliance
Lower servo system overhead
For high tracks-per-inch applications
Legacy system environment compatibility
88C4200 Family
PRML Read Channel
Physical Layer Devices
Marvell USA
645 Almanor Avenue
Sunnyvale, CA 94085
ph: 408.222.2500
fax: 408.328.0120
Marvell Asia Pte, Ltd.
151 Lorong Chuan, #02-05
New Tech Park
Singapore 556741
ph: 65.756.1600
fax: 65.756.7600
Marvell Japan K.K.
Shinjuku Center Building 50F
1-25-1, Nishi-Shinjuku,
Shinjuku-ku, Tokyo 163-0650
ph: 81 (0)3 5324 0355
fax: 81 (0)3 5324 0354
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