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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

µm 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