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PDSP16350 Datasheet(PDF) 9 Page - Mitel Networks Corporation |
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PDSP16350 Datasheet(HTML) 9 Page - Mitel Networks Corporation |
9 / 12 page PDSP16350 9 Modulated Phase Relative phase jumps may be made with or without ampli- tude modulation. For example, if a jump of 180 degrees is required, this can be done with a value of : DIN33:0 = 10 0000 0000 0000 0000 0000 0000 0000 0000 This is loaded into the phase increment register for one cycle, then the normal increment value is re-loaded in the following cycle. Alternatively, if no amplitude modulation is needed, an absolute jump to a phase value can be made, see Fig. 9. This can be done by activating the JUMP input during one cycle and also presenting the new phase value at the same time. For example, if a jump to 270 degrees is required : DIN33:0 = 11 0000 0000 0000 0000 0000 0000 0000 0000 The RES (reset) input can alternatively be used if a jump to 0 degrees is needed. This avoids using the DIN inputs and can be used with or without amplitude modulation. The reset function is internally synchronised to the input clock. Fig. 9 Phase Modulation Timing Diagram 1 2 3 4 5 CLK RESET DATA IN RESULT 30 31 32 33 34 35 A B A B Device Reset Apply First Data First Result Available C D JUMP MODE C D Absolute Phase Jump Absolute phase jump result |
Similar Part No. - PDSP16350_96 |
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Similar Description - PDSP16350_96 |
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