I/O Filter. HSP43124 Datasheet

HSP43124 Filter. Datasheet pdf. Equivalent

Part HSP43124
Description Serial I/O Filter
Feature HSP43124 Data Sheet May 1999 File Number 3555.6 Serial I/O Filter The Serial I/O Filter is a high p.
Manufacture Intersil Corporation
Datasheet
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HSP43124 Data Sheet May 1999 File Number 3555.6 Serial I/O HSP43124 Datasheet
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HSP43124
Data Sheet
HSP43124
May 1999 File Number 3555.6
Serial I/O Filter
The Serial I/O Filter is a high performance filter engine that is
ideal for off loading the burden of filter processing from a
DSP microprocessor. It supports a variety of multistage filter
configurations based on a user programmable filter and fixed
coefficient halfband filters. These configurations include a
programmable FIR filter of up to 256 taps, a cascade of from
one to five halfband filters, or a cascade of halfband filters
followed by a programmable FIR. The half band filters each
decimate by a factor of two, and the FIR filter decimates from
one to eight. When all six filters are selected, a maximum
decimation of 256 is provided.
For digital tuning applications, a separate multiplier is
provided which allows the incoming data stream to be
multiplied, or mixed, by a user supplied mix factor. A two pin
interface is provided for serially loading the mix factor from
an external source or selecting the mix factor from an on-
board ROM. The on-board ROM contains samples of a
sinusoid capable of spectrally shifting the input data by one
quarter of the sample rate, FS/4. This allows the chip to
function as a digital down converter when the filter stages
are configured as a low-pass filter.
The serial interface for3- input and output data is compatible
with the serial ports of common DSP microprocessors.
Coefficients and configuration data are loaded over a
bidirectional eight bit interface.
Block Diagram
Features
• 45MHz Clock Rate
• 256 Tap Programmable FIR Filter
• 24-Bit Data, 32-Bit Coefficients
• Cascade of up to 5 Half Band Filters
• Decimation from 1 to 256
• Two Pin Interface for Down Conversion by FS/4
• Multiplier for Mixing or Scaling Input with an External
Source
• Serial I/O Compatible with Most DSP Microprocessors
Applications
• Low Cost FIR Filter
• Filter Co-Processor
• Digital Tuner
Ordering Information
PART NUMBER
HSP43124PC-45
HSP43124PC-33
TEMP.
RANGE (oC)
PACKAGE
0 to 70 28 Ld PDIP
0 to 70 28 Ld PDIP
HSP43124SC-45
HSP43124SC-33
HSP43124SI-40
0 to 70
0 to 70
-40 to 85
28 Ld SOIC
28 Ld SOIC
28 Ld SOIC
PKG.
NO.
E28.6
E28.6
M28.3
M28.3
M28.3
DIN
SCLK
SYNCIN
MXIN
SYNCMX
HALF
BAND
FILTER
#1
HALF
BAND
FILTER
#2
CONTROL
INTERFACE
HALF
BAND
FILTER
#5
DOUT
SYNCOUT
CLKOUT
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999



HSP43124
Pinout
HSP43124
28 LEAD PDIP, SOIC
TOP VIEW
SCLK 1
SYNCIN 2
GND 3
MXIN 4
SYNCMX 5
FSYNC 6
VCC 7
FCLK 8
WR 9
RD 10
A0 11
A1 12
A2 13
VCC 14
28 DIN
27 DOUT
26 SYNCOUT
25 CLKOUT
24 VCC
23 C7
22 C6
21 C5
20 C4
19 GND
18 C3
17 C2
16 C1
15 C0
2





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