AD9826 ADC has a ~SPI serial interface (3 wire) for configuring internal registers. One of these 3 wire signals is SCLK. My question is, can this clock be shut off when not sending any configuration data? This is not clear from the data sheet. The waveform in Figure 10 (p. 11) doesn't really provide any clue. Can someone confirm whether SCLK can be shut down between serial config transactions?