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HSP48908VC-20 Datasheet

  • HSP48908VC-20

  • Two Dimensional Convolver

  • 18頁(yè)

  • INTERSIL   INTERSIL

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HSP48908
Data Sheet
May 1999
File Number
2456.5
Two Dimensional Convolver
The Intersil HSP48908 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 鏗乴ter kernels, thus facilitating the
implementation of adaptive 鏗乴ters and multiple 鏗乴ter
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 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 HSP48908s. Coef鏗乧ient and pixel input data
are 8-bit signed or unsigned integers, and the 20-bit
convolver output guarantees no over鏗俹w for kernel sizes up
to 4 x 4. Larger kernel sizes can be implemented however,
since the 鏗乴ter coef鏗乧ients will normally be less than their
maximum 8-bit values.
The HSP48908 is manufactured using an advanced CMOS
process, and is a low power fully static design. The
con鏗乬uration of the device is controlled through a standard
microprocessor interface and all inputs/outputs are TTL
compatible.
Features
鈥?Single Chip 3 x 3 Kernel Convolution
鈥?Programmable On-Chip Row Buffers
鈥?DC to 32MHz Clock Rate
鈥?Cascadable for Larger Kernels and Images
鈥?On-Chip 8-Bit ALU
鈥?Dual Coef鏗乧ient Mask Registers, Switchable in a
Single Clock Cycle
鈥?8-Bit Signed or Unsigned Input and Coef鏗乧ient Data
鈥?20-Bit Extended Precision Output
鈥?Standard
碌P
Interface
鈥?Low Power CMOS
Applications
鈥?Image Filtering
鈥?Edge Detection
鈥?Adaptive Filtering
鈥?Real Time Video Filter
Ordering Information
PART NUMBER
HSP48908VC-20
HSP48908VC-32
HSP48908JC-20
HSP48908JC-32
HSP48908GC-20
HSP48908GC-32
TEMP.
RANGE (
o
C)
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 0
PACKAGE
100 Ld MQFP
100 Ld MQFP
84 Ld PLCC
84 Ld PLCC
84 Ld PGA
84 Ld PGA
PKG. NO.
Q100x14x20
Q100x14x20
N84.1.15
N84.1.15
G84.A
G84.A
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright 漏 Intersil Corporation 1999

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