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ADV7341 数据表(PDF) 51 Page - Analog Devices |
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ADV7341 数据表(HTML) 51 Page - Analog Devices |
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51 / 108 page ![]() Data Sheet ADV7340/ADV7341 Rev. C | Page 51 of 108 ENHANCED DEFINITION/HIGH DEFINITION ONLY Subaddress 0x01, Bits[6:4] = 001 or 010 Enhanced definition (ED) or high definition (HD) YCrCb data can be input in either 4:2:2 or 4:4:4 format. If desired, dual data rate (DDR) pixel data inputs can be employed (4:2:2 format only). Enhanced definition (ED) or high definition (HD) RGB data can be input in 4:4:4 format (single data rate only). The clock signal must be provided on the CLKIN_A pin. Input synchronization signals are provided on the P_HSYNC, P_VSYNC, and P_BLANK pins. 16-/20-Bit 4:2:2 YCrCb Mode (SDR) Subaddress 0x35, Bit 1 = 0; Subaddress 0x33, Bit 6 = 1 In 16-/20-bit 4:2:2 YCrCb input mode, the Y pixel data is input on Pin Y9 to Pin Y2/Y0, with Pin Y0 being the LSB in 20-bit input mode. The CrCb pixel data is input on Pin C9 to Pin C2/C0, with Pin C0 being the LSB in 20-bit input mode. 8-/10-Bit 4:2:2 YCrCb Mode (DDR) Subaddress 0x35, Bit 1 = 0; Subaddress 0x33, Bit 6 = 1 In 8-/10-bit DDR 4:2:2 YCrCb input mode, the Y pixel data is input on Pin Y9 to Pin Y2/Y0 on either the rising or falling edge of CLKIN_A. Pin Y0 is the LSB in 10-bit input mode. The CrCb pixel data is also input on Pin Y9 to Pin Y2/Y0 on the opposite edge of CLKIN_A. Pin Y0 is the LSB in 10-bit input mode. Whether the Y data is clocked in on the rising or falling edge of CLKIN_A is determined by Subaddress 0x01, Bits[2:1] (see Figure 52 and Figure 53). Figure 52. ED/HD-DDR Input Sequence (EAV/SAV)—Option A Figure 53. ED/HD-DDR Input Sequence (EAV/SAV)—Option B 24-/30-Bit 4:4:4 YCrCb Mode Subaddress 0x35, Bit 1 = 0; Subaddress 0x33, Bit 6 = 0 In 24-/30-bit 4:4:4 YCrCb input mode, the Y pixel data is input on Pin Y9 to Pin Y2/Y0, with Pin Y0 being the LSB in 30-bit input mode. The Cr pixel data is input on Pin S9 to Pin S2/S0, with Pin S0 being the LSB in 30-bit input mode. The Cb pixel data is input on Pin C9 to Pin C2/C0 (Pin C0 being the LSB in 30-bit input mode). 24-/30-Bit 4:4:4 RGB Mode Subaddress 0x35, Bit 1 = 1 In 24-/30-bit 4:4:4 RGB input mode, the red pixel data is input on Pin S9 to Pin S2/S0, the green pixel data is input on Pin Y9 to Pin Y2/Y0, and the blue pixel data is input on Pin C9 to Pin C2/C0. The S0, Y0, and C0 pins are the respective bus LSBs in 30-bit input mode. Figure 54. ED/HD Only Example Application SIMULTANEOUS STANDARD DEFINITION AND ENHANCED DEFINITION/HIGH DEFINITION Subaddress 0x01, Bits[6:4] = 011 or 100 The ADV7340/ADV7341 are able to simultaneously process SD 4:2:2 YCrCb data and ED/HD 4:2:2 YCrCb data. The 27 MHz SD clock signal must be provided on the CLKIN_A pin. The ED/HD clock signal must be provided on the CLKIN_B pin. SD input synchronization signals are provided on the S_HSYNC and S_VSYNC pins. ED/HD input synchronization signals are provided on the P_HSYNC, P_VSYNC, and P_BLANK pins. SD 8-/10-Bit 4:2:2 YCrCb and ED/HD-SDR 16-/20-Bit 4:2:2 YCrCb The SD 8-/10-bit 4:2:2 YCrCb pixel data is input on Pin S9 to Pin S2/S0, with Pin S0 being the LSB in 10-bit input mode. The ED/HD 16-/20-bit 4:2:2 Y pixel data is input on Pin Y9 to Pin Y2/Y0, with Pin Y0 being the LSB in 20-bit input mode. The ED/HD 16-/20-bit 4:2:2 CrCb pixel data is input on Pin C9 to Pin C2/C0, with Pin C0 being the LSB in 20-bit input mode. SD 8-/10-Bit 4:2:2 YCrCb and ED/HD-DDR 8-/10-Bit 4:2:2 YCrCb The SD 8-/10-bit 4:2:2 YCrCb pixel data is input on Pin S9 to Pin S2/S0, with Pin S0 being the LSB in 10-bit input mode. The ED/HD-DDR 8-/10-bit 4:2:2 Y pixel data is input on Pin Y9 to Pin Y2/Y0 upon the rising or falling edge of CLKIN_B. Pin Y0 is the LSB in 10-bit input mode. 3FF 00 00 XY Y0 Y1 Cr0 CLKIN_A NOTES 1. SUBADDRESS 0x01 [2:1] SHOULD BE SET TO 00 IN THIS CASE. Y[9:0] Cb0 3FF 00 00 XY Cb0 Cr0 Y1 CLKIN_A Y[9:0] Y0 NOTES 1. SUBADDRESS 0x01 [2:1] SHOULD BE SET TO 11 IN THIS CASE. MPEG2 DECODER CLKIN_A C[9:0] S[9:0] Y[9:0] INTERLACED TO PROGRESSIVE YCrCb ADV7340/ ADV7341 P_VSYNC, P_HSYNC, P_BLANK 10 Cb 10 Cr 10 Y 3 |
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