A 10 Gbps SMPTE 292 M compatible optical
A 10 Gbps SMPTE 292 M compatible optical interface July. 13. 2005 Sony Corporation
Basic Concept for the interface n n Shares same structure as 1. 5 Gb/s SDI. A low delay real-time interface with timing reference signals up to 10 Gb/s. Transmission length up to 2 km. Adopts existing transmission module. • Uses “XFP” designed for 10 Gb-E or Fibre channel n Primary payloads. • • • 4 k 2 k D-Cinema image 1080/50 P and 1080/60 P HDTV image Up to 5 channels of 1. 5 Gb/s SDI
Real-Time Synchronous Interface n Clock Frequency • Fck = 74. 25 MHz 144 = 10. 692 GHz • Complies with S 274 M digital representation. • Locked to 74. 25 MHz Image Sampling clock. • 7. 2 times Fck with S 292 M ( 1. 5 Gb/s SDI ) n I/O stream for the interface is 1. 5 Gb/s SDI. • SMPTE 292 M or SMPTE 372 M can be embedded. • 1. 5 Gb/s Timing Reference Signals are completely maintained through 10 Gb/s SDI.
Transmission module for 10 Gbps n XFP MSA v 3. 1 XFP is used for • OC 192/STM-64 9. 95 Gb/s • 10 Gigabit FC 10. 5 Gb/s • ITU-T G. 709 10. 7 Gb/s • IEEE 802. 3 ae 10. 3 Gb/s (10 Gigabit Ethernet ) And… • 10 Gb/s-SDI 10. 69 Gb/s Description Specification Dimension 78 18 8 mm Power Consumption 2 W (Transceiver) LASER wavelength 1, 310 nm
Trend of XFP market price This forecast is derived from one of Japanese manufacturer.
Applications beyond 1. 5 Gb/s n Applicable image formats Frame Rate Interface Bit Rate 24 P 10. 7 Gbps 48 P 1. 5 Gbps x 4 24 P 1. 5 Gbps x 2 10 or 12 bit 50 P, 60 P 1. 5 Gbps x 4 1080/50 P, 60 P 4: 2: 2 YCBCR 10 bit 50 P, 60 P 1. 5 Gbps x 2 1080/60 i etc. 4: 2: 2 YCBCR ( Full Bit 5 ch. ) 10 bit 24 P, 25 P, 30 P 50 i, 60 i 1. 5 Gbps x 5 Input Video Sampling Structure Quantization 4 k 2 k DCDM 2 k 1 k DCDM 4: 4: 4 XYZ 12 bit 2 k 1 k DCDM 1080/50 P, 60 P 4: 4: 4 RGB
Block diagram for the 10 Gbps interface 1. 5 Gb/s HD 5 ch. (1080/50~60 i) 3 Gb/s HD 2 ch. (1080/50~60 P) 7. 7 Gb/s DCDM (4 k 2 k/24 P) Timing Reference Signal 1. 5 Gb/s SDI N 10 Gb/s fiber Byte Array Formatter O to E ( XFP ) 8 B/10 B Encoder Deserializer Sync separator Serializer Sync inserter 8 B/10 B Decoder E to O ( XFP ) SDI Stream Timing Reference Signal generator 10 Gb/s fiber 1. 5 Gb/s SDI N
Line structure of 1. 5 Gb/s SDI@30 Hz 1 Line 280 sample SDI data EAV HANC 1, 920 sample SAV 10 bit each for Y and C Active Video 10 bit -> 8 bit array Byte array 350 EAV HANC 2, 400 SAV Active Video 8 bit x 2 stream 8 B/10 B Encode 350 Coded EAV data HANC 2, 400 SAV Active Video 10 bit x 2 stream x 5 channels ( 10 stream total ) 10 G serial data 35 k EAV HANC SAV 240 k 41. 8 k Active Video Stuffing 316, 800 bit Note: 10. 692× 109 bit/s 30 frame 1125 line = 316, 800 bit/line 1 bit
4 k 2 k @24 Hz DCDM Mapping DCDM Level 1 DCDM level 3 4 Map to S 372 M 4 ( S 292 M 8 ) Map to 10 Gb/s interface
4 k 2 k @24 Hz Line structure 1 Line ( 8192 pixel x 3 = 24, 576 sample ) Image data for a line X 0 Y 0 Z 0 X 1 Y 1 …… TRS / ANC addition EAV Coded data HANC SAV HANC Active Video SAV 2, 736 HANC 12 bit Active Video 10 bit 36, 864 27, 360 10 G EAV serial data 12 bit 24, 576 sample 12 bit -> 8 bit array -> 8 B/10 B Encode 1, 824 sample EAV X 8191 Y 8191 Z 8191 368, 640 SAV Active Video 396, 000 bit Note: 10. 692× 109 bit/s 24 frame 1125 line = 396, 000 bit/line 1 bit
Sample number 24, 575 24, 576 26, 399 0 4 k 2 k @24 Hz Frame structure 1 41 42 : Data for Line 1 Line number EAV HANC Active Video : XYZ 12 bit SAV ( 8192 sample 3 ch 1080 Line ) : 1121 1122 1125 1, 824 sample 24, 576 sample
Experimental Hardware Every component used in the hardware is a commercial product.
Transmission performance n 24 h transmission test with 2 km fiber was completed with no error.
Summary n n Practical optical interface for 10 Gb/s image transmission was confirmed by experiments. All Formats defined in S 274 M ( e. g. 4: 4: 4, 1080/60 P ) and 4 k 2 k D-Cinema image can be transmitted. n Error free transmission over 2 km has been confirmed. n No exclusive component is needed for the interface. n Estimated hardware cost would be around twice as much as current 1. 5 Gb/s SDI. Is the interface worth standardizing?
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