LF3330

Storage temperature...................................................................... - C65 to +150
Operating ambient temperature..................................................... - C55 to +125
VCC supply voltage with respect to ground........................................ - 0.5V to +45V
Input signal with respect to ground.................................................... - 0.5V to 5.5 V
Signal applied to high impedance output............................................. - 0.5Vto 5.5 V
Output current into low outputs...................................................................... 25 mA
Latchup current.......................................................................................... > 400 mA
ESD Classification (MIL-STD-883E METHOD 3015.7)....................................... Class 3

The LF3330 filters digital images in the vertical dimension at real-time video rates. The input and coefficient data are both 12 bits and in twos complement format.  The output is also in twos complement format an may be rounded to 16 bits.

The LF3330 is an 8-tap FIR filter with al  required line buffers contained on- chip.  The line buffers can store video lines with lengths from 4 to 3076 pixels. Multiple LF3330s can be cascaded together to create larger vertical filters.

Due to the length of the line buffers, interleaved data can be fed directly into the device and filtered ithoutseparating the data into individual data streams. 

The number of inter- leaved data sets that the device can handle is limited only by the length o the on-chip line buffers.  If the inter- leaved video line has 3076 data value or less, the filter can handle it.

The LF3330 contains enough on-boar memory to store 256 coefficient sets. The LF Interface^TM allows all 256 coefficient sets to be updated within vertical blanking.

Selectable 16-bit data output with user-defined rounding and limiting minimizes the constraints put on coefficient sets for various filter implementations.