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DP84910 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP84910
Description  Integrated Read Channel
PDF  32 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP84910 Datasheet(HTML) 3 Page - National Semiconductor (TI)

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Features (Continued)
Y
Reference voltage input pin provided for the servo dif-
ference amplifiers
Y
Two selectable hysteresis control pins providedone
for servo field and one for data field
Y
Data field hysteresis level is control register selectable
in eight steps
Y
Logic polarity for write gate assertion is control register
selectable
Y
Capability provided for different channel filter band-
widths for servo and data fieldschange on the fly with
no settling issues
Y
Selectable qualification channel delay
Y
Dual gain synchronizer requiring no external or internal
center frequency setting components external adjust-
ments or precision components
Y
Digitally controlled synchronizer window strobing
Y
Zero-phase-start synchronizer lock acquisition
Y
Two port synchronizer PLL filtering
Y
Frequency lock option for 2T or 3T synchronization
field (preamble)
Y
TTL compatible inputs and outputs
Y
Chip configurable through serial port interface
General Block Diagram
TLF11777 – 2
FIGURE 2
http
www nationalcom
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