Frontier Silicon's Chorus 2 FS1020 programmable DAB baseband receiver provides significant space, cost and power savings on a typical radio or mobile handheld devices.
The higher level of integration provides up to 40 percent space savings on the board real-estate and 35 percent cost savings on the system bill-of-material. Chorus 2 has 640Kbytes of integrated memory, enabling it to run value added features without requiring external memory.
The chip's innovative architecture also provides up to 50 percent power consumption savings compared to other integrated DAB baseband receivers currently available.
Typical of the new products that will be enabled with Chorus 2 are DAB radios merged with other audio functionalitysuch as combined DAB/ FM/ MP3/ WMA/ AAC digital music players, DAB radios with USB 2.0 OTG connectivity for high speed file transfer and firmware upgrade, Internet radios, digital music servers and jukeboxes, and multimedia-enhanced PDAs.
The new baseband receiver covers a number of physical layer standards, particularly those utilizing COFDM modulation. The IC uses a Meta122 CPU with extensive DSP (digital signal processor) capabilities, which is based on a multi-threaded architecture capable of executing multiple DSP tasks on the same core without cross-task interference.
Components that are now integrated on chip include: a switched mode power supply that eliminates the need for external regulators, power-on-reset, digital clock (DCXO) and integrated memory to provide full ensemble 1.8Mbps decoding in a Eureka-147 DAB receiver.
Other features include a USB 2.0 OTG interface, support for TFT and LCD displays, ATA/ATAPI interface for hard-disk storage, and NAND Flash, memory stick and SD interfaces.
The use of a hardware-assisted DSP architecture on the Chorus 2 chip ensures that the DSP has additional capacity to run other embedded applications such as software FM, audio decoders, digital rights management, graphics and audio equalizers.
Chorus 2 is available now in a package with small footprint of just 13mm(l) x 13mm(w) x 1.7mm(h).
More information is available at www.frontier-silicon.com.