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LF3370QC12 数据表(PDF) 6 Page - LOGIC Devices Incorporated |
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LF3370QC12 数据表(HTML) 6 Page - LOGIC Devices Incorporated |
6 / 24 page LF3370 High-Definition Video Format Converter 6 03/13/2001–LDS.3370-F Video Imaging Products DEVICES INCORPORATED LF3370’s core. Data may be presented on input ports A12-0, B12-0, and C12-0 as three channels of non-interleaved input data, one channel non-interleaved and one channel interleaved input data, or one channel of interleaveddata(seeTable1forvarious videoinputschemes). D12-0 istheKey channel input port; the Key channel is simply passed through the input demultiplexerwithalatencythatmatches the other three channels. If video data is non-interleaved and presented to input ports A12-0, B12-0, and C12-0, no demultiplexing is performed. The three channels are passed unmodified into the LF3370 core with a delay of 3 CLK cycles. For this operation, bits 0 and 1 must both be set to 1 in Configuration Register 0 (see Table 5). If video data is on two channels (see Figure 4), one channel of non-interleaved video and one channel of interleaved video, it is assumedthatnon-interleavedvideois presented to input port A12-0 (i.e., Luma) FIGURE 4. INPUT PROCESSING 4:2:2:4 (INTERLEAVED CHROMA ON CHANNEL B) CLK 1 2 3 Demultiplexed Input Data (Output of Demux Section) A12-0 5 6 7 8 10 13 Y0 Y1 Y2 Y3 Y4 Y5 Y6 911 SYNC Y7 Y8 Y9 A'12-0** C'12-0** D'12-0** B'12-0** 412 14 D12-0 Y10 Y11 Y12 17 15 16 * B12-0 CB0 CR0 CB2 CR2 CB4 CR4 CB6 CR6 CB8 CR8 CB10 CR10 CB12 K0 K1 K2 K3 K4 K5 K6 K7 K8 K9 K10 K11 K12 CR'0 CR'2 CR'4 CR'6 CB'0 CB'2 CB'4 CB'6 Y'0 Y'1 Y'2 Y'3 Y'4 Y'5 Y'6 Y'7 Y'8 K'0 K'1 K'2 K'3 K'4 K'5 K'6 K'7 K'8 CR'6 CB'6 RESET FIGURE 5. INPUT PROCESSING 4:2:2:4 (INTERLEAVED LUMA/CHROMA ON CHANNEL A) CLK RESET 1 2 3 Core Clock (Internally Generated and Synchronized to CLK by RESET) Used Only When Single Channel Interleaved Input or Output Video is Used. Demultiplexed Input Data (Output of Demux Section) A12-0 5 6 7 8 10 13 CB0 Y0 CR0 Y1 CB2 Y2 CR2 911 CLK/2* SYNC Y3 CB4 Y4 A’12-0** C’12-0** CR’0 D’12-0** B’12-0** CB’0 412 14 D12-0 K0 K1 K2 K3 K4 Y’0 Y’1 Y’2 K’0 K’1 K’2 CR’1 CB’1 K5 Y’3 K’3 CR4 Y5 CB6 17 15 16 18 * ** |
类似零件编号 - LF3370QC12 |
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类似说明 - LF3370QC12 |
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