CS48DV2/6 Processor with Dolby® Volume The final solution to inconsistent volume issues CS48DV2/6 Processor Overview: CS48DV2/6 Processor Target Markets: The CS48DV2 and CS48DV6 processors give OEMs a cost effective, fixed-function, simple-to-design Dolby Volume solution Digital Televisions 5.1 Channel AVRs 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 Automotive Entertainment 2.1/5.1 Channel Hi-Fi, DVD Receivers and HTiBs • 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: 260µW 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 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 Ordering Information: CS48DV2/6 Processor Family Device(s) CS48DV2A-CQZ CS48DV2B-CQZ (Available April ‘08) CS48DV6B-CQZ (Available April ‘08) CS48DV2A-DQZ (Automotive) (Available December ‘07) Package 48-Pin LQFP Eval. Boards CRD48DV2-USB CDB48DV6-USB Application Note AN298PPMN Tools Cirrus Logic CS48DVx / CS49DV8 Dolby Volume Controller GUI: software tool offers a simple and quick method during the evaluation & design stage (Available December ‘07) 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 a master host microcontroller or an external I2C EEPROM or SPI Flash device. In all cases, the host microcontroller is responsible for downloading the specific hardware and software configuration commands. All Dolby Volume parameters running on the CS48DV2/6 firmware can be adjusted in real-time as well as allowing 6 different presets to be saved and recalled easily, enabling very simple and quick “A/B” listening tests for the target design. CRD48DV2-USB 2 Channel Dolby Volume Evaluation Kit CDB48DV6-USB 6 Channel Dolby Volume Evaluation Kit www.cirrus.com Cirrus L og ic, In c. · 2901 Via For t una · Aus t in T X 7 8 74 6 U S A · T 5 1 2 - 8 5 1 - 4 0 0 0 · T 8 0 0 - 8 8 8 - 5 0 1 6 · F 5 1 2 - 8 5 1 - 4 9 7 7 Product Bulletin 0204-1007-PB v1.0.3 © 2007 Cirrus Logic, Inc. All rights reserved. Product information is subject to change without notice. Cirrus Logic, Cirrus, and the Cirrus Logic logo designs are trademarks of Cirrus Logic, Inc. Dolby and the double D symbol are registered trademarks of Dolby Laboratories. All other brand and product names in this document may be trademarks or service marks of their respective owners.