III. Gm-C Filtering - Epublications - Université de Limoges

Table of Figure
FIGURE 1. ADDITIVE COLORS PRINCIPLE .........................................................................................................................- 9 -
FIGURE 2. FROM PICTURE CODING TO SIGNAL EMISSION ...................................................................................................- 9 -
FIGURE 3. TIME REPRESENTATION OF AN AM MODULATION............................................................................................- 10 -
FIGURE 4. TIME REPRESENTATIONS OF AN FM MODULATION...........................................................................................- 10 -
FIGURE 5. ASK (A), FSK (B) AND PSK (C) MODULATIONS...............................................................................................- 11 -
FIGURE 6. I-Q MODULATION.....................................................................................................................................- 11 -
FIGURE 7. TIME REPRESENTATIONS OF I, Q AND OUTPUT SIGNALS USING A 4PSK MODULATION.............................................- 12 -
FIGURE 8. 8PSK (A) , 16QAM (B) AND 64QAM (C) CONSTELLATIONS ............................................................................- 12 -
FIGURE 9. USED DIGITAL STANDARD ACCORDING TO COUNTRIES......................................................................................- 13 -
FIGURE 10. SATELLITE TV TRANSMISSIONS...................................................................................................................- 14 -
FIGURE 11. TERRESTRIAL TV TRANSMISSIONS...............................................................................................................- 14 -
FIGURE 12. CABLE TV SPECTRUM..............................................................................................................................- 14 -
FIGURE 13. TERRESTRIAL TV SPECTRUM .....................................................................................................................- 15 -
FIGURE 14. TERRESTRIAL TV SPECTRUM IN CAEN (BEFORE ANALOG SWITCH-OFF)................................................................- 15 -
FIGURE 15. TV RECEPTION CHAIN ..............................................................................................................................- 16 -
FIGURE 16. COEXISTENCE OF STANDARDS IN THE OFF-AIR SPECTRUM ................................................................................- 17 -
FIGURE 17. RF RECEIVER FRONT-END SIMPLIFIED ARCHITECTURE......................................................................................- 18 -
FIGURE 18. TV RECEIVER ARCHITECTURE .....................................................................................................................- 18 -
FIGURE 19. NOISE ADDED TO A SINE SIGNAL.................................................................................................................- 19 -
FIGURE 20. 16QAM CONSTELLATIONS FOR TWO DIFFERENT SNR....................................................................................- 19 -
FIGURE 21. BER VERSUS E S/N0 IN CASE OF A 16QAM MODULATION ...............................................................................- 20 -
FIGURE 22. SECOND ORDER (A) AND THIRD AND FIFTH ORDER (B) DISTORTION OF A SINE WAVE.............................................- 21 -
FIGURE 23. INTERMODULATION PRODUCTS INTERFERING WITH A DESIRED SIGNAL ...............................................................- 21 -
FIGURE 24. FRONT-END PART OF THE TV TUNER...........................................................................................................- 23 -
FIGURE 25. LO TIME EVOLUTION ...............................................................................................................................- 24 -
FIGURE 26. LO FREQUENCY SPECTRUM .......................................................................................................................- 24 -
FIGURE 27. DOWNCONVERSION OF LO HARMONICS TO IF..............................................................................................- 25 -
FIGURE 28. TV TUNER ARCHITECTURE.........................................................................................................................- 25 -
FIGURE 29. PROTECTION RATIOS FOR DIFFERENT STANDARDS ..........................................................................................- 26 -
FIGURE 30. MAXIMUM FREQUENCY STEP OF THE FILTER .................................................................................................- 27 -
FIGURE 31. LOW FREQUENCY ABACUS........................................................................................................................- 28 -
FIGURE 32. HIGH FREQUENCY ABACUS .......................................................................................................................- 28 -
FIGURE 33. HARDEST REJECTIONS TO REACH ACCORDING TO THE CENTRAL FREQUENCY........................................................- 29 -
FIGURE 34. CAN TUNER (A) AND ITS RF FILTERING (B)....................................................................................................- 30 -
FIGURE 35. NXP TDA18271 (A) AND ITS RF FILTERING (B) ...........................................................................................- 30 -
FIGURE 36. NXP TDA18272 (A) AND ITS RF FILTERING (B) ...........................................................................................- 31 -
FIGURE 37. FIRST ORDER RC LOW-PASS FILTER ............................................................................................................- 36 -
FIGURE 38. CUT-OFF FREQUENCY TUNABILITY OF A FIRST ORDER LOW-PASS FILTER..............................................................- 36 -
FIGURE 39. H3 AND N+5 REJECTIONS OF A FIRST ORDER LOW-PASS FILTER ........................................................................- 37 -
FIGURE 40. SECOND ORDER RC AND LC LOW-PASS FILTERS ............................................................................................- 37 -
FIGURE 41. IMPACT OF THE LOW-PASS FILTERS TRANSFER FUNCTION ORDER ....................................................................- 38 -
FIGURE 42. H3 AND N+5 REJECTIONS ACCORDING TO THE ORDER ...................................................................................- 38 -
FIGURE 43. SECOND ORDER LOW-PASS FILTERS TOPOLOGIES ..........................................................................................- 39 -
FIGURE 44. H3 AND N+5 REJECTIONS ACCORDING TO THE SECOND ORDER TOPOLOGY.........................................................- 39 -
FIGURE 45. LOW-PASS TO BANDPASS TRANSFORMATION ...............................................................................................- 40 -
FIGURE 46. BANDPASS FILTER TRANSFER FUNCTION .....................................................................................................- 41 -
FIGURE 47. RLC RESONATOR WITH PARALLEL CAPACITOR ...............................................................................................- 41 -
FIGURE 48. SERIES LC RESONATOR ASSUMING SERIES LOSS .............................................................................................- 41 -
FIGURE 49. RLC PARALLEL CIRCUIT.............................................................................................................................- 42 -
FIGURE 50. LOW-PASS TO HIGH-PASS TRANSFORMATION...............................................................................................- 43 -
FIGURE 51. IMPACT OF THE BANDPASS FILTERS TRANSFER FUNCTION ORDER ....................................................................- 44 -
FIGURE 52. H3 AND N+5 REJECTIONS ACCORDING TO THE ORDER ...................................................................................- 44 -
FIGURE 53. COMPARISON OF FOURTH ORDER BANDPASS FILTERS.....................................................................................- 45 -
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