AD9689
Recommended for New Designs
The AD9689 is a dual, 14-bit, 2.0 GSPS/2.6 GSPS analog-to-digital converter (ADC). The device has an on-chip buffer and a sample-and-hold circuit designed...
Datasheet
AD9689 on Analog.com
I wanted to ask what are the equations used to generate the PN9 and PN23 sequence of the ADC test patterns.
In the manual, it is said that the first values are:
PN9: 0x0092 -- 0x125B, 0x3C9A, 0x2660, 0x0c65, 0x0697
PN23: 0x3AFF -- 0x3FD7, 0x0002, 0x26E0, 0x0A3D, 0x1CA6
But I am unable to generate those using the typical LFSR shifted by one and X-ored. I believe there is a more complex equation behind, right?