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LF3370QC12 Datenblatt(PDF) 1 Page - LOGIC Devices Incorporated |
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LF3370QC12 Datenblatt(HTML) 1 Page - LOGIC Devices Incorporated |
1 / 24 page Video Imaging Products 1 LF3370 High-Definition Video Format Converter 03/13/2001–LDS.3370-F DEVICES INCORPORATED COLORSPACE CONVERTER/ KEY SCALER INPUT DE-MULTIPLEXER SECTION 55-TAP HALF-BAND INTERPOLATION/ DECIMATION FILTERS OUTPUT MULTIPLEXER SECTION B12-0 C12-0 A12-0 D12-0 X12-0 Y12-0 W12-0 Z12-0 1K x 13-Bit LOOK-UP-TABLES INPUT BIAS ADDERS OUTPUT BIAS ADDERS FEATURES LF3370 High-Definition Video Format Converter DEVICES INCORPORATED u u u u u 83 MHz Data Rate for HDTV Applications u u u u u Supports Multiple Video Formats Bi-Directional Conversions: - 4:2:2:4 - 4:4:4:4 - R/G/B/Key - Y/U/V/Key u u u u u Multiplexed and Non-multiplexed I/O Data u u u u u User-Programmable: - 3 x 3 Colorspace Converter - LUT for Gamma Correction - I/O Bias Compensation - Bypass Capability u u u u u 13-bit Data Path, Colorspace Converter Coefficients and Key Channel Scaling Coefficients u u u u u 160-lead PQFP DESCRIPTION The LF3370 is a video format converter capable of operating at HDTV data rates. This device converts to and from any of the various SDTV/HDTV digital video formats by utilizing an internal 3 x 3 Matrix Multiplier and two 1:2 Interpolation/2:1 Decimation Half-Band Filters. Using the Input Demultiplexer and Output Multiplexer, the LF3370 can accept and output interleaved or non-interleaved video. For example, R/G/B/Key data can be color space converted to Y/U/V/Key and down-con- verted to 4:2:2:4. By re-arranging the order of the functional sec- tions, the opposite conversion can be achieved. The coefficients for the 3 x 3 Matrix Multiplier are fully user programmable to sup- port a wide range of color space conversions. The two Interpola- tion/Decimation Half-Band Filters are fully compliant with SMPTE 260M. Input and Output Bias Adders are included for removing or adding a user-defined bias into the video signal. In addition, three pro- grammable 1K x 13-bit Look-Up Tables (LUTs) have also been included for various uses such as gamma correction. A Scaler has been included on the Key Channel for scaling to a desired magnitude using user programmable coeffi- cients. Input signals can also be forced to user-defined levels for horizontal blanking. Furthermore, Round/ Select/Limit (RSL) circuitry is provided at the end of various stages to provide the best possible conversions without color viola- tions. For additional flexibility, the Halfband Filter can be indi- vidually bypassed using an inter- nal programmable length delay. All control and coefficient registers are loaded through the LF Inter- face™. This device operates at 3.3 V (5 V tolerant I/O) and is available in 160-lead PQFP package. LF3370 BLOCK DIAGRAM |
Ähnliche Teilenummer - LF3370QC12 |
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Ähnliche Beschreibung - LF3370QC12 |
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