FEATURES
● Single-chip MPEG-2 video/audio decoder and system parser in 208-pin PQFP package. DESCRIPTION
The ES4228 MPEG video/audio decoder works as the central processing unit for Internet set-top box applications, while The ES4227 companion chip supplies proper video sync capabilities and performs NTSC- and PAL-based video encoding and decoding as necessary to provide broadcast quality video to the television screen. The ES4227 is a mixed-signal chip that includes a high quality NTSC/PAL encoder, two programmable 16-bit sigma-delta audio DACs, a PLL clock synthesizer, two microphone A/D converters, an I/O expansion port, and an echo/surround sound circuit. The ES4228 controls the ES4227 through a proprietary bus, the Device Serial Communication (DSC) bus. The ES4227 gets video input and audio input from the ES4228. Video format is 8bit YUV, and audio format is I2S. Command and register accesses are issued through the DSC interface from the ES4228 to the ES4227 through the DSC interface for accessing the internal registers of the ES4227.
ESS
