DESCRIPTION

The LF9501 is a high-speed, 10-bit programmable line buffer. Some applications the LF9501 is useful for include sample rate conversion, data time compression/expansion, software controlled data alignment, and programmable serial data shifting. By using the MODSEL pin, two different modes of operation can be selected: delay mode and data recirculation mode. The delay mode provides a minimum of 2 to a maximum of 1281 clock cycles of delay between the input and output of the device. The data recirculation mode provides a feedback path from the data output to the data input for use as a programmable circular buffer.

FEATURES

❑ 50 MHz Maximum Operating Frequency

❑ Programmable Buffer Length from 2 to 1281 Clock Cycles

❑ 10-bit Data Inputs and Outputs

❑ Data Delay and Data Recirculation Modes

❑ Supports Positive or Negative Edge System Clocks

❑ Expandable Data Word Width or Buffer Length

❑ Replaces Harris HSP9501

❑ 44-pin PLCC, J-Lead