The WM9712 AMR is an audio only daughter card implementation of the Intel Audio Modem Riser (AMR) Rev 1.01 specification. This card can also be used in systems supporting the ACR 1.0 specification.
The design supports the connectivity requirements of a typical sound card. Inputs include Phone, AUX, Video, CD (WM9705 Only - Mitsumi and Sony types) and Mic input. Outputs include Line Out, Mono, Headphones, BTL, Ear Speaker and digital SPDIF.
The WM9712 Audio CODEC used in the design is compliant with the Intel AC97 Rev 2.2 CODEC specification, supporting variable audio sample rates, a digital SPDIF output and the additional function of an integrated touch screen controller.
