KCC's Quizzes AQQ304 - A pure logic
1. Quote of the month: "I am not lazy, I'm just in energy-saving mode" - unknown
2. Quiz AQQ304 about finding a pure logic puzzle
Mike is looking at Anne, but Anne is looking at Paul.
Mike is married, but Paul is not.
Question:
Is a married
View All
September Monthly Blog Quiz! Read the blog, take the quiz, and you could win a gift card
Quiz: How Well Do You Know Adaptive Power Switching?
Is your I/O module overheating? The AD74416H's Adaptive Power Switching (APS) can cut heat dissipation by up to 40% — but how well do you really understand how it works?
Read the blog first: Cooling
View All
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?