JAJSM24A December 2023 – May 2024 ADC3910D025 , ADC3910D065 , ADC3910D125 , ADC3910S025 , ADC3910S065 , ADC3910S125
PRODUCTION DATA
The ADC3910Dx および ADC3910Sx supports double data rate (DDR), half double data rate (HDDR), and single data rate (SDR). In DDR/HDDR mode, the device generates the output data clock along with inverse data clock. Single channel ADCs can use SDR mode where data is output on the rising edge of the clock.
By default, DDR mode clocks output data by alternating channel A data on the rising and channel B data on the falling edge on the same lane. This behavior can be changed to clock all of channel A data first and then channel B data via SPI write to DDR_MODE (0x0A6). HDDR mode clocks channel A data on separate output lanes from channel B data via SPI write to HDDR_EN (0x098).
For receivers that cannot clock data on the falling edge of data clock, inverse data clock can be used to clock data on rising edge.
See Section 5.11 section for timing diagrams for parallel CMOS output.