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GS2972 Scheda tecnica(PDF) 11 Page - Semtech Corporation |
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GS2972 Scheda tecnica(HTML) 11 Page - Semtech Corporation |
11 / 125 page GS2972 3G/HD/SD-SDI Serializer with Complete SMPTE Audio & Video Support Final Data Sheet Rev. 9 GENDOC-047479 September 2013 11 of 125 www.semtech.com 1.2 Pin Descriptions Table 1-1: Pin Descriptions Pin Number Name Timing Type Description B3, A2, A1, B2, B1, C2, C1, C3, D1, D2 DIN[19:10] Input PARALLEL DATA BUS. Please refer to the Input Logic parameters in the DC Electrical Characteristics table for logic level threshold and compatibility. 20-bit mode 20BIT/10BIT = HIGH Data Stream 1/Luma data input in SMPTE mode (SMPTE_BYPASS = HIGH) Data input in data through mode (SMPTE_BYPASS = LOW) 10-bit mode 20BIT/10BIT = LOW Multiplexed Data Stream 1/Luma and Data Stream 2/Chroma data input in SMPTE mode (SMPTE_BYPASS = HIGH) Data input in data through mode (SMPTE_BYPASS = LOW) DVB-ASI data input in DVB-ASI mode (SMPTE_BYPASS = LOW) (DVB_ASI = HIGH) A3 F/DE Synch- ronous with PCLK Input PARALLEL DATA TIMING. Please refer to the Input Logic parameters in the DC Electrical Characteristics table for logic level threshold and compatibility. TIM_861 = LOW: Used to indicate the ODD / EVEN field of the video signal when DETECT_TRS is set LOW. The device will set the F bit in all outgoing TRS signals for the entire period that the F input signal is HIGH (IOPROC_EN/DIS must also be HIGH). The F signal should be set HIGH for the entire period of field 2 and should be set LOW for all lines in field 1 and for all lines in progressive scan systems. The F signal is ignored when DETECT_TRS = HIGH. TIM_861 = HIGH: The DE signal is used to indicate the active video period when DETECT_TRS is LOW. DE is HIGH for active data and LOW for blanking. See Section 4.3 and Section 4.3.2 for timing details. The DE signal is ignored when DETECT_TRS = HIGH. |
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