Ref design enables low-cost HEDGE smartphones

Broadcom Corp. has announced a new HEDGE reference design platform that promises to accelerate the process of developing next-generation smartphones for mass consumer markets.

The new reference design is based on the company's 65nm single-chip dual-core HSDPA + EDGE multimedia baseband processor and integrates the leading connectivity solutions on a compact, cost-efficient platform featuring all-Broadcom silicon for the major communications components.

The new HEDGE reference design platform integrates an HSDPA baseband modem (with application, audio and multimedia processors) and a Category 8 HSDPA modem (that delivers 7.2Mbit/s 3G connectivity for advanced applications) on a single monolithic chip. The platform provides demonstrated support for the three major mobile operating systems. Advanced connectivity features include Broadcom's industry proven Bluetooth, Wi-Fi, GPS and FM radio technology, along with advanced digital image processing that features support for an up to 3.2Mpixel camera built in. With this level of integration, the new HEDGE reference design platform requires less board space, cost and power, provides fast time-to-market and eliminates the cost premium typically associated with HSDPA handsets.

Technical features
The BCM92153 reference design platform is based on the BCM2153 3G baseband processor, BCM59035 PMU and CellAirity 2.0 software that includes pre-ported applications for HEDGE-based multimedia handsets. The platform also integrates Broadcom's latest-generation Bluetooth, FM and Wi-Fi devices for enhanced voice and multimedia connectivity. The BCM92153 reference design combines the RF front-end, baseband, high-performance multimedia and applications processing functions on a converged design, resulting in reduced BOM cost and a smaller PCB form factor.

The BCM2153 baseband processor also integrates Broadcom's M-Stream technology, which improves voice and data quality in areas with moderate or weak cellular signal condition. The end result is fewer dropped calls, extended range coverage and improved user experience.

The reference design also features the BCM4325 combo solution that includes Bluetooth, Wi-Fi and FM radio on a single-chip solution, said to be the first of its kind to be manufactured at 65nm. In addition, the design includes the BCM4750 single-chip GPS receiver that promises performance and lower power draw.

The BCM92153 includes the BCM59035 PMU that addresses the complex power management features needed in mobile systems and supports dynamic voltage management with two programmable, high efficiency step-down regulators. It also includes 11 high-performance programmable LDOs, an integrated real-time clock and comprehensive battery management support. The BCM59035 also supports USB OTG 200mA Vbus.