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L6363
June 2001
This is preliminary information on a new product now in development. Details are subject to change without notice.
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SIGNAL PROCESSING
PR4 signal equalization and loops
8th order optimized low pass filter with program-
mable cut-off frequency and boost
single flash 6-bit ADC
5-TAP programmable/self-adaptive digital FIR
for signal equalization
Programmable/self-adaptive Offset and MR
Head Asymmetry compensation for signal
equalization
Timing and Gain loops for optimum data recov-
ery
Encoder scheme:
Rate 304/338 with Local ECC (16/17 without
Local ECC)
Detector scheme:
Media Noise TerminatorTM Detector
Optional Local ECC Post Processing scheme
8-bit NRZ interface to disk controller
Thermal Asperity detection/compensation and
Erasure Flag
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WRITE
2 level Write Precomp for Non Linear Transition
Shift compensation
Asynchronous and Synchronous Direct Write
for disk/head characterization
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SERVO
Digital Synchronous Servo with data rates up to
75MHz (8x Ovsersampling)
Internal Burst and Grey Code detection
Repeatable Run Out Support
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CHANNEL QUALITY MONITOR
Fast read parameters optimization for minimum
BER
Advanced Disk Surface Defect Scan
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QUALITY AND RELIABILITY
BIST for analog front-end and digital back-end
Iddq and I/O pins mapping
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POWER SUPPLY AND CONTROL
2.5V Analog and 1.8V Digital supply; 1.8V to
3.3V supply for I/O pins
Advanced Power Management features
DESCRIPTION
L6363 is a 0.18
m CMOS PRML R/W channel sup-
porting data rates up to 750Mb/sec with Servo De-
modulation, Clock Synthesis, Channel Quality
Monitor for channel optimization and Disk Surface
Defect Scan capability
TQFP100
ORDERING NUMBER: L6363
PRODUCT PREVIEW
PRML READ/WRITE CHANNEL
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of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
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L6363