Quick Detail:
Serial I/O Filter
Description:
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 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.
Applications:
• 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
• Pb-Free Plus Anneal Available (RoHS Compliant)
Specifications:
|
Datasheets |
HSP43124 |
|
Product Photos |
28-SOIC, M28.3 PKG |
|
Standard Package |
26 |
|
Category |
Integrated Circuits (ICs) |
|
Family |
Interface - Filters - Active |
|
Series |
- |
|
Packaging |
Tube |
|
Filter Type |
Serial I/O |
|
Frequency - Cutoff or Center |
- |
|
Number of Filters |
6 |
|
Filter Order |
- |
|
Voltage - Supply |
4.75 V ~ 5.25 V |
|
Mounting Type |
Surface Mount |
|
Package / Case |
28-SOIC (0.295", 7.50mm Width) |
|
Supplier Device Package |
28-SOIC W |
Competitive Advantage:
Warranty :180 days !
Free shipping: Order over $1000 win a free shipment fee
(goods weight below 3Kg) ,during 20130901-20130930 .
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