Depends on the 'level' of suspension. Second and third degree suspensions don't have mandatory jail or fines, but first degree has mandatory jail.
While a person is on DUI probation, the law requires a 30 day jail sanction for driving suspended in any degree. If you are able to get your license back before sentencing, that will help. Definitely don't enter a guilty plea on the driving suspended case until you know what the penalty is likely to be on the probation case.