In a large bowl, beat the first 6 ingredients on low speed for 30 seconds. Beat on medium for 2 minutes. Pour into a greased 13x9-in. baking pan. Combine pecans, sugar and cinnamon; sprinkle over batter. Cut through batter with a knife to swirl pecan mixture.
Bake at 350° for 30-35 minutes or until a toothpick inserted in the center comes out clean.
Meanwhile, in a small bowl, combine confectioners' sugar and orange juice until smooth; drizzle over warm coffee cake. Cool on a wire rack.
