CXD2728Q Overview
The CXD2728Q is a CMOS LSI developed for Dolby Pro Logic Surround. A SRAM for short delay and AD/DA converters are built in, and all functions necessary for Dolby Pro Logic Surround such as an adaptive matrix, a passive decoder including Modified Dolby B-type NR, auto input balance, a noise sequencer and center channel mode control are contained on a single chip. Further, this LSI also supports Dolby 3 Stereo and...
CXD2728Q Key Features
- Dolby Pro Logic Surround decoding with a single chip
- 2-channel 1-bit AD converter and decimation filter
- 4-channel 1-bit DA converter and oversampling filter
- 32K-bit SRAM for short delay
- No separation or other variance for digital processing
- External parts reduced due to the built-in AD/DA converters Functions
- Adaptive matrix
- Center channel mode control (Normal/Phantom/Wide)
- Dolby 3 Stereo
- Auto input balance control (ON/OFF)