HD153011

      The HD153011 is designed as 2-7 RLL ENDEC built-in VFO IC developed for magnetic disks.HD153011decodes a 2-7 RLL signal read from a magnetic disk into an NRZ signal, and encodes an NRZ signal to be written to a magnetic disk into a 2-7 RLL signal.
      HD153011 has many features.The first one is that it can correspond to 15 Mbps of data transfer rate.The second one is it can decode and encode in IBM 2-7 RLL method.The third one is write precompensation function.The fourth one is selectable internal delay or external delay line with write precompensation.The fifth one is address mark generation and detection for DC erase and illegal patterns.The sixth one is detection of 4T (1000) sysc field pattern.The next one is 2-7 RLL signal can be active high or active low.The next one is undefined NRZ read data output disable immediately after read gate assertion.The next one is non-adjusting PLL.The next one is selectable window-center adjusting mode or non-adjusting mode.The next one is two phase detector modes, phase comparison and frequency phase comparion.The next one is that can switch normal gain mode to/from high gain mode and can switch loop filter constant.The next one is fix VCO center frequency by inputting the power-on reset signal at power on. And so on.
      Some absolute maximum rating of HD153011 have been concluded into several points as follow.The first one is about its supply voltage which would be 7V.The second one is about its input voltage which would be 5.5V.The third one is about its output voltage which would be 5.5V.The fourth one is about its current dissipation which would be 550mW.The fifth one is about its operating temperature which would be from 0 to +70°C.The sixth one is about its storage temperature which would be from -55 to +125°C.The last one is about its output voltage with high level which would be 5.5V.And so on.For more information please contact us.