Please let me know about reference setting of AD9237 soon because I am designing and need to finish by this week,.
Is there any wrong with description of AD9237 datasheet P.18 table 7_Internal Fixed Reference ?
Datasheet Table 7 says below
1: differenctial span 4.0Vp-p : resulting VREF 0.5V and span factor 1
2: differenctial span 1.0Vp-p : resulting VREF 1.0V and span factor 1
But,we think that we need to set resulting VREF = 1.0V and span factor =1 if I need 4v p-p of resulting differenntial span.
Is my understanding correct ?
I reffer below.
1: SPAN = 4*VREF/ Span factor described in datasheet P.17
2: Condtion (VREF = 1.0 V; MODE2 = AVDD) of 4Vp-p described in deasasheet P.3 table 1
If you have any question, please let me know .
I will confirm it and add answer at this thread.