SQL Server 2012 AlwaysOn Availability Group

We have an application that needs access to the database at all times to work properly and we are planning on deploying SQL Server 2012 AlwaysOn Availability Groups on Windows Server 2012. We have two geographically separated data centers and we plan to keep one DB server in DC1 and the other in DC2. All the information that I've seen shows a local synchronous copy and an asynchronous copy in another data center. I wanted to know if there is a way to configure the availability group with just two SQL servers which are separated geographically and can support automatic failover.