CS48DV2/6 Processor with Dolby® Volume The final solution to inconsistent volume issues CS48DV2/6 Processor Overview: The CS48DV2 and CS48DV6 processors give OEMs a cost effective, fixed-function, simple-to-design Dolby Volume solution Dolby Volume Overview: • Consistent volume across all input sources and all content • Consistent volume within the same program • Eliminates need to constantly adjust volume • Full, rich, and consistent experience at all volume levels • Improved vocal and surround perception at low volume levels • No artifacts or audible side effects CS48DV2/6 Processor Features: • 2.0 to 2.1 Channel / 3.0 to 5.1 Channel 32-bit fixed-function Dolby Volume processing (512 FFT Window / 20-Band) • CS48DV2 supports up to 2.1 channel 32-bit PCM I/O at Fs of 32kHz, 44.1kHz & 48kHz • CS48DV6 supports up to 5.1 channel 32-bit PCM I/O at Fs of 32kHz, 44.1kHz & 48kHz • Integrated S/PDIF Transmitter • 2/6 Channeld DSD input support (Rev. B) • SPI™/I2C® serial control port • Low-power standby: 260ìW CS48DV2/6 Key Benefits: • Easy to design – only 10 parameters to control from host microcontroller • High-performance & low cost • No external SRAM/SDRAM memory needed • Dedicated part number simplifies tracking and reporting tasks, reducing liability • Firmware image can be downloaded from either host microcontroller or from external SPI Flash device at speeds up to 12.288Mhz www.cirrus.com CS48DV2/6 Processor Target Markets: Digital Televisions 5.1 Channel AVRs Automotive Entertainment 2.1/5.1 Channel Hi-Fi, DVD Receivers and HTiBs The CS48DV2 Processor with Dolby Volume implemented in a 2.1 channel DTV application

www.cirrus.com CS48DV2/6 Using the Cirrus Logic CS48DVx / CS49DV8 Controller GUI for Dolby Volume The CS48DV2/6 ICs are programmed with the latest Dolby Volume firmware using the Cirrus Logic proprietary GUI software development & evaluation tool called Dolby Volume Controller. This same tool then configures the CS48DV2/6 through the SPI™/I2C® serial port via the USB 2.0 cable. The IC can be sent a command to boot itself using firmware loaded from ROM within the CS48DV2/6 (starting with Rev B Silicon - available in April, 2008), or it may be downloaded through the serial control port from either...