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GS1510-CQR Scheda tecnica(PDF) 1 Page - Gennum Corporation |
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GS1510-CQR Scheda tecnica(HTML) 1 Page - Gennum Corporation |
1 / 11 page GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 Tel. +1 (905) 632-2996 Fax. +1 (905) 632-5946 E-mail: info@gennum.com www.gennum.com Revision Date: November 2000 Document No. 522 - 47 - 00 PRELIMINARY DATA SHEET FEATURES • SMPTE 292M compliant • standards detection/indication for SMPTE 292M levels A/B,C,D/E,F,G/H,I,J/K,L/M • NRZI decoding and SMPTE descrambling with BYPASS option • line CRC calculation, comparison • selectable line based CRC re-Insertion • H, V, F timing reference signal (TRS) extraction • selectable flywheel for noise immune H, V, F extraction • selectable automatic switch line handling • selectable TRS and line number re-insertion • selectable active picture illegal code re-mapping • configurable FIFO LOAD pulse • 20 bit 3.3V CMOS input data bus • optimized input interface to GS1545 or GS1540 • single +3.3V power supply • 5V tolerant I/O APPLICATIONS SMPTE 292M Serial Digital Interfaces. DESCRIPTION When interfaced to the Gennum GS1545 HDTV Equalizing Receiver or GS1540 Non-Equalizing Receiver, the GS1510 performs the final conversion to word aligned data. The device performs NRZI decoding and de-scrambling as per SMPTE 292M and word-aligns to the incoming data stream. Line based CRCs are calculated on the incoming data stream and are compared against the CRCs embedded within the data stream. HVF timing information is extracted from the data stream. A selectable internal HVF flywheel provides superior noise immunity against TRS signal errors. The device also detects and indicates the input video signal standard. The GS1510 can detect and re-map illegal code words contained within the active portion of the video signal. Prior to exiting the device, TRS, Line Numbers and CRCs based on internal calculations may be re-inserted into the data stream. BLOCK DIAGRAM ORDERING INFORMATION PART NUMBER PACKAGE TEMPERATURE GS1510-CQR 128 pin MQFP 0°C to 70°C INPUT BUFFER DESCRAMBLE FRAME PCLK_IN DATA_IN [19:0] WB_NI BP_DSC BP_FR [H:V:F] LN_ERR SAV_ERR EAV_ERR VD_STD [3:0] LINE_CRC_ERR [Y:C] CODE PROTECT TRS_INS LN_INS CRC_INS DATA_OUT [19:10] (LUMA) DATA_OUT [9:0] (CHROMA) TRS, LNUM, AND CRC INSERTION FW_EN/DIS FAST_LOCK RESET TRS_Y/C F_E/S MUTE OEN 3 2 4 3 3 2 2 TRS DETECTION FLYWHEEL STANDARD DETECTION TRS EXTRACTION CRC CALCULATION CRC COMPARISON ILLEGAL CODE REMAPPING 3 FIFO_L HD-LINX ™ GS1510 HDTV Serial Digital Deformatter |
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