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SAA7824 Datasheet(PDF) 58 Page - NXP Semiconductors |
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SAA7824 Datasheet(HTML) 58 Page - NXP Semiconductors |
58 / 89 page 2003 Oct 01 58 Philips Semiconductors Product specification CD audio decoder, digital servo and filterless DAC with integrated pre-amp and laser control SAA7824 8 SUMMARY OF SERVO COMMAND PARAMETERS VALUES Table 28 foc_parm1 parameter: focus end lead frequency, defect detector, offtrack detector Table 29 foc_parm2 parameter: focus low-pass start frequency, focusing system foc_parm1 Focus end lead frequency f3 kHz foc_pole_lead value (binary) xxx1 1100 1.97 xxx1 1000 2.29 xxx0 0000 2.61 xxx0 1000 2.94 xxx0 1100 3.26 xxx1 1101 3.90 xxx1 1001 4.55 xxx0 0001 5.19 xxx0 1001 5.82 xxx0 1101 6.46 xxx1 1110 7.72 xxx1 1010 8.98 xxx0 0010 10.22 xxx0 1010 11.46 xxx0 1110 12.69 xxx1 1111 15.13 xxx1 1011 17.54 xxx0 0011 19.93 xxx0 1011 22.28 defect_det_sw Defect detector x11x xxxx defect detector does not influence focus and radial x10x xxxx focus hold on defect detector x00x xxxx focus and radial hold on defect detector x01x xxxx undefined, reserved otd_select Offtrack detector 0xxx xxxx ON track active 1 1xxx xxxx ON track active 0 foc_parm2 Focus low-pass start frequency f4 kHz foc_pole_noise value (binary) xxx1 1100 3.90 xxx1 1000 4.55 xxx0 0000 5.19 xxx0 1000 5.82 xxx0 1100 6.46 xxx1 1101 7.72 xxx1 1001 8.98 xxx0 0001 10.22 xxx0 1001 11.46 xxx0 1101 12.69 xxx1 1110 15.13 xxx1 1010 17.54 xxx0 0010 19.93 xxx0 1010 22.28 xxx0 1110 25.40 xxx1 1111 30.26 xxx1 1011 35.08 xxx0 0011 39.86 xxx0 1011 44.56 detector_arr Focusing system xx1x xxxx single foucault xx0x xxxx double foucault |
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