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Serial I/O Filter

封装信息

CAD 模型: View CAD Model
Pkg. Type: SOICW
Pkg. Code: MWW
Lead Count (#): 28
Pkg. Dimensions (mm): 17.93 x 7.52 x 0.20
Pitch (mm): 1.27

环境和出口类别

Moisture Sensitivity Level (MSL)
Pb (Lead) Free No
ECCN (US)
HTS (US)

产品属性

Pkg. Type SOICW
Carrier Type Tube
MOQ 52
Data 24 Bits
Filter Subtype HB FIR
Lead Count (#) 28
Length (mm) 17.9
Pb (Lead) Free No
Pitch (mm) 1.3
Pkg. Dimensions (mm) 17.9 x 7.5 x 0.20
Qualification Level Standard
Temp. Range (°C) 0 to +70°C
Thickness (mm) 0.2
Width (mm) 7.5

描述

Support is limited to customers who have already adopted these products.

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.