HSP43124SC-45Z Intersil, HSP43124SC-45Z Datasheet

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HSP43124SC-45Z

Manufacturer Part Number
HSP43124SC-45Z
Description
IC I/O FILTER SER 24BIT 28-SOIC
Manufacturer
Intersil
Datasheet

Specifications of HSP43124SC-45Z

Filter Type
Serial I/O
Number Of Filters
6
Voltage - Supply
4.75 V ~ 5.25 V
Mounting Type
Surface Mount
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Frequency - Cutoff Or Center
-
Max-order
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
HSP43124SC-45Z
Manufacturer:
Intersil
Quantity:
16
Part Number:
HSP43124SC-45Z
Manufacturer:
INTERSIL
Quantity:
20 000
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, F
converter when the filter stages are configured as a low-pass
filter.
The serial interface for 3- 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.
Ordering Information
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
Block Diagram
HSP43124SC-45
HSP43124SC-45Z (Note) HSP43124SC-45Z
SYNCMX
SYNCIN
PART NUMBER
SCLK
S
MXIN
/4. This allows the chip to function as a digital down
DIN
HSP43124SC-45
®
PART MARKING
1
FILTER
BAND
HALF
#1
Data Sheet
FILTER
BAND
HALF
#2
1-888-INTERSIL or 1-888-468-3774
INTERFACE
RANGE (°C)
CONTROL
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
0 to +70
0 to +70
TEMP.
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 F
• Multiplier for Mixing or Scaling Input with an External
• Serial I/O Compatible with Most DSP Microprocessors
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Low Cost FIR Filter
• Filter Co-Processor
• Digital Tuner
Source
28 Ld SOIC (300 mil)
28 Ld SOIC (300 mil, Pb-free)
All other trademarks mentioned are the property of their respective owners.
April 18, 2007
FILTER
BAND
HALF
|
#5
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 1999, 2007. All Rights Reserved
PACKAGE
HSP43124
M28.3
M28.3
PKG. NO.
S
FN3555.7
/4
DOUT
SYNCOUT
CLKOUT

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HSP43124SC-45Z Summary of contents

Page 1

... HSP43124SC-45 HSP43124SC-45 HSP43124SC-45Z (Note) HSP43124SC-45Z NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020 ...

Page 2

Pinout 2 HSP43124 HSP43124 (28 LD PDIP, SOIC) TOP VIEW SCLK 1 28 DIN SYNCIN 2 27 DOUT 3 GND 26 SYNCOUT 25 CLKOUT 4 MXIN SYNCMX CC FSYNC ...

Page 3

Pin Description NAME TYPE V - +5V Power Supply CC GND - Ground DIN I Serial Data Input. The bit value present on this input is sampled on the rising edge of SCLK. A “HIGH” on this input represents a ...

Page 4

INPUT FORMATTER # BITS VARIABLE LENGTH MSB F/2 DIN SHIFT REGISTER (8-24-BITS) FORMAT SYNCIN SYNCIN INPUT HOLDING REG SERIAL MULTIPLIER MIX FACTOR HOLDING REG SYNCMX MIX MXIN SEL † SYNCMX MUX WEAVER MODULATOR ROM # BITS VARIABLE LENGTH MXIN FORMAT ...

Page 5

TABLE 1. CONFIGURATION CONTROL REGISTER FUNCTIONAL DESCRIPTION ADDRESS REGISTER DESCRIPTION 000 Filter Configuration 001 Programmable FIR Filter Length 010 Coefficient RAM Access 011 Input Format 100 Output Timing 101 Output Format 110 Filter Symmetry 111 Mix Factor Format Writing Coefficients ...

Page 6

The coefficient address pointer is reset when any other configuration register is written or read. NOTE: A new coefficient set may be loaded during a filter calculation at the risk ...

Page 7

Figure 7. On the following SCLK, the first data bit is clocked into the Variable Length Shift Register. Data bits are clocked into the shift register until the data word, of user programmable length ( bits), is ...

Page 8

SCLK SYNCIN LSB DIN X0 SYNCMX LSB MXIN M0 SYNC LEADS DATA FIGURE 8. DATA/MIX FACTOR SYNCHRONIZATION FOR SERIALLY INPUT MIX FACTORS NOTE: Figure 8 shows the loading of a data sample, X0, such that it will be multiplied by ...

Page 9

INPUT TO HALFBAND SECTION NORMALIZED s HB5 MUX5 NORMALIZED HB1 HB4 MUX4 NORMALIZED HB2 HB2 19 TAP HB3 F HB2 MUX3 NORMALIZED ...

Page 10

The coefficient set for each of the halfband filters is given in Table 4. These values are the 32-bit, two’s complement, integer representation of the filter coefficients. Scaling these -31 values by 2 yields the fractional two’s complement coefficients used ...

Page 11

TABLE 3. FREQUENCY RESPONSE OF HALFBAND FILTERS (Continued) NORMALIZED HALFBAND FREQUENCY #1 0.101562 -0.237843 0.109375 -0.314663 0.117188 -0.407509 0.125000 -0.518045 0.132812 -0.647925 0.140625 -0.798791 0.148438 -0.972266 0.156250 -1.169959 0.164062 -1.393465 0.171875 -1.644372 0.179688 -1.924262 0.187500 -2.234728 0.195312 -2.577375 0.203125 -2.953834 ...

Page 12

TABLE 3. FREQUENCY RESPONSE OF HALFBAND FILTERS (Continued) NORMALIZED HALFBAND FREQUENCY #1 0.429688 -43.585945 0.437500 -47.588165 0.445312 -52.164894 0.453125 -57.495132 0.460938 -63.861992 0.468750 -71.755898 0.476562 -82.156616 0.484375 -97.627930 0.492188 -139.751450 TABLE 4. HALFBAND FILTER COEFFICIENTS (32 BITS, UN-NORMALIZED) COEFFICIENT HALFBAND ...

Page 13

TABLE 4. HALFBAND FILTER COEFFICIENTS (32 BITS, UN-NORMALIZED) (Continued) COEFFICIENT HALFBAND #1 C30 C31 C32 C33 C34 TABLE 5. PERFORMANCE ENVELOPE PARAMETERS NUMBER OF HALFBANDS HB CLKS 125 5 221 Serial ...

Page 14

FCLK/SCLK Uncertainty Region Figure 13 shows a clocking relationship for the HSP43124 Serial I/O filter that could result in an uncertainty at the output. For simplicity, the frequency of FCLK and SCLK are assumed to be equal to each other, ...

Page 15

Absolute Maximum Ratings Supply Voltage ...

Page 16

AC Electrical Specifications (Note PARAMETER FCLK, SCLK Period FCLK, SCLK High FCLK, SCLK Low Setup Time DIN, MXIN, SYNCIN, SYNCMX to SCLK Hold Time DIN, MXIN, SYNCIN, SYNCMX from SCLK Setup Time FSYNC to FCLK Hold Time ...

Page 17

Waveforms t t WRH WRL C0-7, A0-2 FIGURE 15. TIMING RELATIVE SCLK t DS DIN, MXIN, SYNCIN, SYNCMX FIGURE 17. INPUT DATA TIMING FCLK CLKOUT SYNCOUT DOUT t DO ...

Page 18

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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