L6363
PRML READ/WRITE CHANNEL
PRODUCT PREVIEW
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SIGNAL PROCESSING
鈥?PR4 signal equalization and loops
鈥?8th order optimized low pass filter with program-
mable cut-off frequency and boost
鈥?single flash 6-bit ADC
鈥?5-TAP programmable/self-adaptive digital FIR
for signal equalization
鈥?Programmable/self-adaptive Offset and MR
Head Asymmetry compensation for signal
equalization
鈥?Timing and Gain loops for optimum data recov-
ery
鈥?Encoder scheme:
鈥?Rate 304/338 with Local ECC (16/17 without
Local ECC)
鈥?Detector scheme:
鈥?Media Noise TerminatorTM Detector
鈥?Optional Local ECC Post Processing scheme
鈥?8-bit NRZ interface to disk controller
鈥?Thermal Asperity detection/compensation and
Erasure Flag
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TQFP100
ORDERING NUMBER: L6363
CHANNEL QUALITY MONITOR
鈥?Fast read parameters optimization for minimum
BER
鈥?Advanced Disk Surface Defect Scan
QUALITY AND RELIABILITY
鈥?BIST for analog front-end and digital back-end
鈥?Iddq and I/O pins mapping
POWER SUPPLY AND CONTROL
鈥?2.5V Analog and 1.8V Digital supply; 1.8V to
3.3V supply for I/O pins
鈥?Advanced Power Management features
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WRITE
鈥?2 level Write Precomp for Non Linear Transition
Shift compensation
鈥?Asynchronous and Synchronous Direct Write
for disk/head characterization
DESCRIPTION
L6363 is a 0.18碌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
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SERVO
鈥?Digital Synchronous Servo with data rates up to
75MHz (8x Ovsersampling)
鈥?Internal Burst and Grey Code detection
鈥?Repeatable Run Out Support
June 2001
This is preliminary information on a new product now in development. Details are subject to change without notice.
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