In a small bowl, combine cracker crumbs and sugar; cut in butter until crumbly. Grease the sides only of a 9-in. springform pan; press crumb mixture onto bottom of pan. Place on a baking sheet. Bake at 350° for 10 minutes. Cool on a wire rack., In a large bowl, beat cream cheese and sugar until smooth. Beat in lemon juice and vanilla. Add eggs; beat on low speed just until combined. Pour filling onto crust. Return pan to baking sheet. , Bake at 350° for 45-55 minutes or until center is almost set. Cool on a wire rack for 10 minutes. Carefully run a knife around edge of pan to loosen; cool 1 hour longer., Refrigerate overnight. Serve with Raspberry Sauce and Sour Cream Topping if desired. Refrigerate leftovers.