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HSP48908/883
December 1999
FN2783.5
Two Dimensional Convolver
The Intersil HSP48908/883 is a high speed Two Dimensional
Convolver which provides a single chip implementation of a
video data rate 3 x 3 kernel convolution on two dimensional
data. It eliminates the need for external data storage through
the use of the on-chip row buffers which are programmable
for row lengths up to 1024 pixels.
There are internal register banks for storing two independent
3 x 3 filter kernels, thus, facilitating the implementation of
adaptive filters and multiple filter operations on the same
data. The pixel data path also includes an on-chip ALU for
performing real-time arithmetic and logical pixel point
operations.
Data is provided to the HSP48908/883 in a raster scan
noninterlaced fashion, and is internally buffered on images
up to 1024 pixels wide for the 3 x 3 convolution operation.
Images with larger rows and convolution with larger kernel
sizes can be accommodated by using external row buffers
and/or multiple HSP48908/883s. Coefficient and pixel input
data are 8-bit signed or unsigned integers, and the 20-bit
convolver output guarantees no overflow for kernel sizes up
to 4 x 4. Larger kernel sizes can be implemented however,
since the filter coefficients will normally be less than their
maximum 8-bit values.
The HSP48908/883 is manufactured using an advanced
CMOS process, and is a low power fully static design. The
configuration of the device is controlled through a standard
microprocessor interface and all inputs/outputs are TTL
compatible.
Features
鈥?This Circuit is Processed in Accordance to MIL-STD-883
and is Fully Conformant Under the Provisions of
Paragraph 1.2.1.
鈥?Single Chip 3 x 3 Kernel Convolution
鈥?Programmable On-Chip Row Buffers
鈥?DC to 27MHz Clock Rate
鈥?Cascadable for Larger Kernels and Images
鈥?On-Chip 8-Bit ALU
鈥?Dual Coefficient Mask Registers, Switchable in a Single
Clock Cycle
鈥?8-Bit Signed or Unsigned Input and Coefficient Data
鈥?20-Bit Extended Precision Output
鈥?Standard
碌P
Interface
Applications
鈥?Image Filtering
鈥?Edge Detection
鈥?Adaptive Filtering
鈥?Real Time Video Filter
Ordering Information
PART NUMBER
HSP48908GM-20/883
HSP48908GM-27/883
TEMP.
RANGE (
o
C)
-55 to 125
-55 to 125
PACKAGE
84 Ld CPGA
84 Ld CPGA
PKG. NO.
G84.A
G84.A
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
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Intersil (and design) is a trademark of Intersil Americas Inc.
Copyright 漏 Intersil Americas Inc. 2002. All Rights Reserved
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