A court-appointed arbitrator has ruled that Jennifer Lopez's first husband, Ojani Noa, should pay her nearly $545,000 for his plans to write a tell-all book.

The award was revealed Monday when Lopez's attorney, Paul Sorrell, filed court papers asking a Los Angeles Superior Court judge to confirm the decision in a hearing scheduled for Sept. 5.

The decision would put an end to Noa's plans to publish the book, which was to be titled The Unknown Truth: A Passionate Portrait of a Serial Thriller.

Noa's book was to detail his first sexual encounter with Lopez, as well as claims that the singer had multiple affairs while they were married.

Sorrell complained – and arbitrator Richard Chernick agreed – that the book and the public allegations by Noa violate a settlement in a separate lawsuit in which Noa agreed not to disparage Lopez or to attempt to profit by disclosing details about her private life.

"The book proposal clearly contains material that violates the terms referenced [in] ... the settlement agreement,'' states the seven- page decision.

The award consists of $200,000 in compensatory damages for breach of the Lopez-Noa settlement agreement; nearly $300,000 in attorneys' fees and almost $48,000 in arbitration costs.

Neither Noa, 33, nor his attorney could be reached for comment