ITU-R BT.656 Encoder

The  DB1830 CCIR 656 Encoder IP Core encodes 4:2:2 Y’CbCr component digital video with synchronization signals to conform to NTSC & PAL video ITU-R BT.656 digital coding standard.

Figure 1 depicts the DB1830 CCIR 656 Encoder IP Core embedded within an integrated circuit device. The DB1830 accept CCIR ITU-R BT.601 4:2:2 sampled Y’CbCr color digital components and synchronization signals and encodes as an NTSC or PAL CCIR BT.656 frame. Control & Status can be programmed into optional DB1830 registers via a bus interface, or set as non-register fixed parameters at synthesis for a smaller VLSI footprint.

• Complies with CCIR ITU-R BT.656 specification
• Input CCIR ITU-R BT.601 4:2:2 sampled Y’CbCr color digital components and VSYNC, HSYNC synchronization signals
• Optional 24-bit / 30-bit Y’CbCr components or multiplexed 8-bit Y’CbCr. 8- or 10-bits per component at 27 MHz
• Support BT.656 encoding to NTSC 60 Hz / 525 lines or PAL 50 Hz / 625 lines
• CCIR 656 Encoder - Y’CbCr framed within EAV, Blanking, SAV, XYencoding
• User optional Slave Bus Interface for programming Control & Status Registers
• Member of Digital Blocks’ Video Signal & Image Processing IP Core Family, which include the following:
  • DB1800 - Standard Definition NTSC/PAL/SECAM Video Sync Separator
  • DB1810 - Color Space Convert
  • DB1820 - Chroma Resampler
  • DB1825 - RGB to YCrCb Color Space Convert with 4:4:4 to 4:2:2 Chroma Resampler
  • DB1830 – CCIR BT.656 Encoder
  • DB1840 – CCIR BT.656 Decoder
  • DB1892 - RGB to CCIR601/656 Encoder
• On-Chip Interconnect Compliance (optional) – Avalon/Qsys, AXI, AXI4, AHB:
  • Avalon Interface Specification (MNL-AVABUSREF-2.0)
  • AMBA AXI Protocol Specification (V1.0)
  • AMBA AXI4 Protocol Specification (V3.0)
  • AMBA AHB Specification 2.0
  • AMBA APB Specification 2.0
• FPGA Integration Support:
  • Altera Quartus II & Qsys / SOPC Integration & NIOS II EDS Reference Design
  • Xilinx ISE Design Suite utilizing AMBA AXI4 & Embedded Development & Software Development Kits
• ASIC / ASSP Design-In Support:
  • Compliance to RTL Design & Coding Standards
  • Digital Blocks Support Services
• Fully-synchronous, pipelined architecture, synthesizable Verilog RTL core

• The DB1830 is available in FPGA netlist or synthesizable RTL Verilog, along with Synopsys Design Constrains, a simulation test bench with expected results, reference design, and user manual.