Agilent Technologies E4438C

Chapter 7 227
Digital Signal Interface Module
Clock Timing
1 Sample Period
4 Clocks Per Sample
4 Clocks
The I sample is transmitted for the first two clock periods and the Q sample is transmitted during the second two
Clock
Q sample
4 bits per word
I sample
4 bits per word
clock periods; the sample rate is decreased by a factor of four.
1 Sample Period
2 Clocks Per Sample
2 Clocks
The I sample is transmitted for one clock period and the Q sample is transmitted during the second
Clock
Q sample
4 bits per word
I sample
4 bits per word
clock period; the sample rate decreases by a factor of two.