NORWOOD, MAAnalog Devices, Inc. announced the availability of a new high-end multimedia baseband processor designed to enable advanced audio and video functions in EDGE and GSM/GPRS cellular phones. The SoftFone® chipset consists of the AD6900 digital baseband processor and the AD6855 analog baseband processor, which together offer features such as industry-leading 3.0-megapixel camera support, USB On-the-Go, 128-voice MIDI ringtones and full-duplex speakerphone capability, without requiring a separate applications co-processor.
The chipset is based on Analog Devices' RAM-based SoftFone architecture, which uses Analog Devices' Blackfin® Processor and ARM926EJ-S, both running at 260 MHz to perform both the communications and audio/video signal processing tasks in a media-rich handset.
The capabilities of the Blackfin Processor enable the multimedia video processing to be performed without the use of a co-processor, thereby significantly lowering bill of materials cost and power consumption.
The AD6900 can support video algorithms such as MPEG4, H.263 and H.264 for screen sizes up to QVGA; stereo audio codecs including MP3, AAC+, WMA and others; and it offers 128-voice MIDI ringtones, all handled in software. The processor also includes built-in support for up to 3.0-megapixel resolution cameras. The AD6900 provides "boot-from-NAND" capability, and has been validated for compatibility with state-of-the-art flash memory devices including the recently announced M18 series from Intel and OneNAND from Samsung.
The companion AD6855 IC (Stratos-S) handles the analog processing, providing the analog and power management functions including baseband radio interface, voiceband and stereo D/A conversion, and voltage regulation. The dynamic power management feature included in the SoftFone multimedia chipset controls the frequency and core voltage of the processor depending on the processing power being utilized, thereby extending battery life. The analog audio subsystem supports multiple sampling rates of stereo audio for music playback, as well as concurrent audio streams and full-duplex speakerphone operation with more than 25 percent increase in output volume than previous-generation devices.
The SoftFone AD6900/AD6855 SoftFone multimedia baseband chipset is available now. Click here for the AD6900 data sheet. Click here for the AD6855 data sheet.
Analog Devices, Inc.,
+1 1-800-262-5643 or 781-461-3333, www.analog.com