HD153009

      The HA153009 and HD153013 2-7 encoder/decoder IC for magnetic disks converts an NRZ signal to be written to a magnetic disk into 2-7code,and converts a 2-7 code read from the disk into an NRZ signal.The IC incorporates phase comparator logic for the data separator.In combination with a data separator chip,this ICperforms two functions:2-7 modulation/demodulation and data separation.
      The HA153009 and HD153013 has 9 features.The first one is encode/decode IBM 2-7 codes.The second one is can generate and detect addressmarks using soft sector approach.The third one is built-in sync field detection logic.The fourth one is maximum data transfer rate is 15 Mbps.The fifth one is built-in phase comparison logic for data scparation.The sixth one is can synchronize phases 4T(1000) SYNC pattern.The seventh one is LSTTL-compatible inputs/outputs.The eighth one is small 44-pin MSP package suitable for surface mounting.The last one is single 5 V power supply.
      The HA153009 and HD153013 has 8 functions.The first one is NRZ signal to 2-7 code conversion.The second one is 2-7 code to NRZ signal conversion.The third one is write precompensation.The fourth one is phase synchronization in 4T(1000) SYNC pattern.The fifth one is address mark(DC erase) generation.The sixth one is address mark(DC erase) detection.The seventh one is phase comparison for data separator.The eighth one is sync field detection.
      The HA153009 and HD153013 has some information about absolutly maximum rating.When item is supply voltage,the symbol is Vcc,the rating is 7,the unit is V.When item is input voltage,the symbol is V1,the rating is 5.5,the unit is V.When item is output voltage,the symbol is Vo,the rating is 5.5,the unit is V.When item is power consumption,the symbol is Pc,the rating is 460,the unit is mW.When item is operating temperature,the symbol is Topr,the rating is -20 to +75,the unit is °C.When item is storage temperature,the symbol is Tstg,the rating is -65 to +150,the unit is °C.
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