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ADS7890 Datasheet(PDF) 10 Page - Texas Instruments |
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ADS7890 Datasheet(HTML) 10 Page - Texas Instruments |
10 / 29 page ADS7890 SLAS409 − DECEMBER 2003 www.ti.com 10 D12 D13 td8 23 9 10 16 SCLK CS BUSY SDO Figure 6. Frame Abort During Sample The falling edge of CS during a conversion (from BUSY high until the end of t(conv) as shown in Figure 7) aborts the ongoing conversion. This starts the next frame. The device outputs 3F80 (hex) on SDO during the first frame after the conversion abort. MSB Busy Fall Without Conversion Abort 2 3 15 16 1 2 3 4 5 tw2 td4 t(CONV) 3F80 (hex) SCLK CS BUSY SDO Figure 7. Frame Abort During Conversion FRAME ABORT IN DSP INTERFACE MODE The rising edge of FS (see Figure 8) or the rising edge of CS (see Figure 9) after the falling edge of FS and before the 9th rising edge of SCLK aborts the frame. SDO goes to three-state with CS high and a new frame is started with the rising edge of FS (see Figure 8 and Figure 9). Previous conversion results are available on SDO during the new frame. MSB− D13 D12 D6 MSB−D13 LSB−D0 2 3 8 9 2 3 15 16 Data From Last Conversion SCLK FS BUSY CS SDO (Held Low) Figure 8. Frame Abort Using FS Before Sample Start |
Similar Part No. - ADS7890_15 |
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Similar Description - ADS7890_15 |
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