CDB4955 Ver la hoja de datos (PDF) - Cirrus Logic

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componentes Descripción

Fabricante

CDB4955

NTSC/PAL Digital Video Encoder

Cirrus Logic 

CS4954 CS4955

LIST OF FIGURES

Figure 1. Video Pixel Data and Control Port Timing ..................................................................8

Figure 2. I²C Host Port Timing ...................................................................................................9

Figure 3. Reset Timing.............................................................................................................10

Figure 4. ITU R.BT601 Input Slave Mode Horizontal Timing ...................................................16

Figure 5. ITU R.BT601 Input Master Mode Horizontal Timing.................................................16

Figure 6. Vertical Timing ..........................................................................................................18

Figure 7. NTSC Video Interlaced Timing .................................................................................19

Figure 8. PAL Video Interlaced Timing ....................................................................................20

Figure 9. NTSC Video Non-Interlaced Progressive Scan Timing ............................................21

Figure 10. PAL Video Non-Interlaced Progressive Scan Timing .............................................22

Figure 11. CCIR656 Input Mode Timing ..................................................................................22

Figure 12. Teletext Timing (Pulsation Mode) ...........................................................................25

Figure 13. Teletext Timing (Window Mode) .............................................................................25

Figure 14. 1.3 MHz Chrominance low-pass filter transfer characteristic..................................29

Figure 15. 1.3 MHz Chrominance low-pass filter transfer characterstic (passband) ...............29

Figure 16. 650 kHz Chrominance low-pass filter transfer characteristic ..................................29

Figure 17. 650 kHz Chrominance low-pass filter transfer characteristic (passband) ...............29

Figure 18. Chrominance output interpolation filter transfer characteristic (passband).............30

Figure 19. Luminance interpolation filter transfer characteristic ..............................................30

Figure 20. Luminance interpolation filter transfer characterstic (passband) ............................30

Figure 21. Chrominance interpolation filter transfer characteristic for RGB datapath..............30

Figure 22. Chroma Interpolator for RGB Datapath when rgb_bw=1 (Reduced Bandwidth) ....31

Figure 23. Chroma Interpolator for RGB Datapath when rgb_bw=1 (Reduced Bandwidth) ....31

Figure 24. Chroma Interpolator for RGB Datapath when rgb_bw=0 -3 dB ..............................31

Figure 25. Chroma Interpolator for RGB Datapath when rgb_bw=0 (Full Scale).....................31

Figure 26. I²C Protocol.............................................................................................................35

Figure 27. 8-bit Parallel Host Port Timing: Read-Write/Write-Read Cycle...............................35

Figure 28. 8-bit Parallel Host Port Timing: Address Read Cycle .............................................36

Figure 29. 8-bit Parallel Host Port Timing: Address Write Cycle .............................................36

Figure 30. External Low Pass Filter .........................................................................................54

Figure 31. Typical Connection Diagram...................................................................................55

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DS278F6

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