Maxtor D740X-6L 20.0 AT Product Manual page 58

B a s i c P r i n c i p l e s o f O p e r a t i o n
• PLL
• Serial Interface
• TA Detection and Correction
       2 T G % Q O R G P U C V Q T
The pre-compensator introduces pre-compensation to the write data received from
the sequencer module in the DCIIA. The pre-compensated data is then passed to the
R/W Pre-Amplifier and written to the disk. Pre-compensation reduces the write
interference from adjacent write bit.
       8 C T K C D N G ) C K P # O R N K H K G T 8 ) #
Digital and analog controlled AGC function with input attenuator for extended range.
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Continuous time data filter which can be programmed for each zone rate.
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Digitally controlled and programmable filter for partial response signal conditioning.
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Provides very high speed digitization of the processed read signal.
       8 K V G T D K & G V G E V Q T
Decodes ADC result into binary bit stream.
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Provides 50/52 code conversion to NRZ. Includes preamble and sync mark
generation and detection.
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Servo processor with servo data recovery and burst demodulation.
       % N Q E M 5 [ P V J G U K \ G T
Provides programmable frequencies for each zone data rate.
        2 . .
Provides digital read clock recovery.
        5 G T K C N + P V G T H C E G
High speed interface for digital control of all internal blocks.
        6 # & G V G E V K Q P C P F % Q T T G E V K Q P
Detects thermal asperities' defective sectors and enables thermal asperity recoveries.
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