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WCDMA baseband targets low-cost smartphones

Posted: 31 Mar 2014     Print Version  Bookmark and Share

Keywords:RDA Microelectronics  smartphone  WCDMA  RF  ARM Cortex 

RDA Microelectronics Inc. has unleashed the RDA8860 WCDMA/EDGE/GSM baseband SoC aimed at the low-cost smartphone market. According to the company, the device incorporates an RF transceiver, WCDMA modem, EDGE modem, application processor, power management unit, analog baseband and 32kHz oscillator into a single 40nm die, promising to cut customer BOM.

Built around a 1GHz ARM Cortex-A5 processor with a 256KB L2 cache, the chip uses 400MHz 32bit LPDDR2 memory, which supplies 3.2GB bandwidth to create a powerful platform for low-cost mobile device, stated the company. It supports WiFi, Bluetooth and GPS connections through various peripheral interfaces and leverages a dedicated CPU, accelerator and memory for the WCDMA/EDGE modem sub-system to further improve performance of the application processor. The chip's video processor supports 720p H.264 video playback at 30fps combined with Vivante Corp.'s integrated 3D GPU for high-end graphic interface and gaming capabilities. The RDA8860 is designed for smartphone devices running on Android 4.0 operating system and above.

"Low-cost WCDMA smartphones are one of the largest growth drivers in emerging markets today as subscribers in markets such as China continue to transition from feature phones to more advanced devices," noted Shuran Wei, CEO of RDA Microelectronics. "The 8860 uses similar production tools as our market-leading feature phone platform, enabling handset manufacturers to easily and quickly migrate to our WCDMA smartphone platform."

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