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ADS5294IPFPR 데이터시트(PDF) 56 Page - Texas Instruments |
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ADS5294IPFPR 데이터시트(HTML) 56 Page - Texas Instruments |
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56 / 82 page ![]() ADCLKp LCLKp OUTp ADCLKp LCLKp OUTp PHASE_DDR<1:0> = 00 ADCLKp LCLKp OUTp PHASE_DDR<1:0> = 10 ADCLKp LCLKp OUTp PHASE_DDR<1:0> = 01 PHASE_DDR<1:0> = 11 ADCLKp LCLKp OUTp PHASE_DDR<1:0> = 10 56 ADS5294 SLAS776E – NOVEMBER 2011 – REVISED APRIL 2018 www.ti.com Product Folder Links: ADS5294 Submit Documentation Feedback Copyright © 2011–2018, Texas Instruments Incorporated • k is set as described by the HPF_corner registers (one for each channel). (4) The HPF_EN bit in each register must be set to enable the HPF feature for each channel. 9.6.1.11 Bit-Clock Programmability Table 19. Bit-Clock Programmability ADDR. (HEX) D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 NAME 42 X X PHASE_DDR<1:0> 46 1 X EN_SDR 46 1 X FALL_SDR The output interface of the ADS5294 is normally a DDR interface, with the LCLK rising edge and falling edge transitions in the middle of alternate data windows. This default phase is shown in Figure 57. Figure 57. Default Phase of LCLK The phase of LCLK is programmed relative to the output frame clock and data using bits PHASE_DDR<1:0>. The LCLK phase modes are shown in Figure 58. Figure 58. Phase Programmability Modes for LCLK |
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