ADS8910B Datasheet, PDF (11/68 Pages) Texas Instruments – ADS891xB 18-Bit, High-Speed SAR ADCs With Integrated Reference Buffer, Integrated LDO, and multiSPI™ Digital Interface

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CS
SCLK⁽¹⁾
t_{su_CSCK}
t_{ht_CKCS}
SCLK⁽¹⁾
SDI
ADS8910B
ADS8912B
ADS8914B
SBAS707A – JUNE 2016 – REVISED JULY 2016
t_{ph_CK}
t_CLK
t_{pl_CK}
t_{su_CKDI}
t_{ht_CKDI}
SDO-x
t_{den_CSDO}
t_{dz_CSDO}
SDO-x
t_{d_CKDO}
(1) The SCLK polarity, launch edge, and capture edge depend on the SPI protocol selected.
Figure 3. SPI-Compatible Serial Interface Timing
CS
SCLK
t_{su_CSCK}
t_{ht_CKCS}
SCLK
RVS
t_{ph_CK}
t_CLK
t_{pl_CK}
t_{d_CKSTR_r}
t_{d_CKSTR_f}
SDO-x
RVS
t_{den_CSDO}
t_{dz_CSDO}
toff_STRDO_r
SDO-x
(DDR)
t_{off_STRDO_f}
t_{d_CSRDY_f}
t_{d_CSRDY_r}
SDO-x
(SDR)
t_{off_STRDO_r}
Figure 4. Source-Synchronous Serial Interface Timing (External Clock)
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