More details:
http://profootballtalk.nbcsports.com/2013/02/19/official-jackson-numbers-left-out-signing-bonus-incentives/
As officially recorded, it’s a one-year, $1.75 million deal with no guaranteed money or incentives. In reality, the deal includes a $500,000 signing bonus (which already has been paid) and incentives that could earn Jackson another $2.25 million, if he takes 65 percent of the snaps on offense.
More specifically, Jackson will get an extra $500,000 if he takes half of the snaps in 2013. He’ll get an additional $750,000 if he takes 60 percent of the snaps. And he’ll pick up another $1 million if he takes 65 percent of the snaps.
In all, it’s a $2.25 million package with $2.25 million in available incentives. The guarantee is $500,000.