MIX the cracker crumbs, butter and 3 Tbsp. sugar. Press onto bottom of nonstick 9x13 pan and refrigerate while preparing filling.
BEAT PHILADELPHIA Neufchatel Cheese and 1 cup sugar in large bowl with mixer until well blended. Add berries; beat on low speed just until blended. Whisk in COOL WHIP LITE Whipped Topping. Pour over crust.
REFRIGERATE 4 hours or until firm. Cut to serve.