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NXP single-chip solution enables ultralow-cost handsets

Posted: 06 Sep 2007 ?? ?Print Version ?Bookmark and Share

Keywords:flash memory card? power management? handset multimedia solution? ultralow-cost handsets?

NXP Semiconductors has released its Nexperia PNX4903 GSM/GPRS-optimized multimedia solution for the ultralow-cost (ULC) segment of the mobile handset market. Delivering complete system-level operation in a single monolithic IC, the PNX4903 provides the highest levels of integration and performance and is the most cost-effective solution available for multimedia-enabled ULC handsets. Representing the ULC+ concept, NXP's solution allows handset OEMs/ODMs to deliver rich multimedia content to entry-level cell phone users in a reliable, cost- and power-efficient package.

The Nexperia PNX4903 chip addresses competitive ULC market demands for the combination of RF performance, power consumption metrics, features and total cost.

In addition, the ULC+ multimedia solution enables a music phone with color screen, MP3 playback, removable flash memory card and FM tuner for a total BOMs under $20. While traditional multichip handset designs require three times the number of external components on a more complex PCB, the PNX4903 allows a complete, dual-band GSM/GPRS modem to be realized with just 49 external components on a low-cost, four-layer PCB. The only external ICs needed are a power amplifier and memory. By integrating the analog and digital basebands, RF transceiver, power management and audio circuitry in a monolithic IC, the PNX4903 solution delivers the lowest bill of materials and PCB footprint, along with the lowest manufacturing and test costs of any solution currently available.

Low-cost multimedia phones
"During the next phase of rapid expansion of mobile communications in the rural and semi-urban areas of India, NXP would like to fulfill the aspirations of first-time handset users by offering the next experience in multimedia at a ULC price point," said Ashok Chandak, director of global sales, NXP Semiconductors India. "Building on the successful deployment of ULC phones based on NXP's current generation chipsets in India, handset manufacturers and operators can now deliver differentiating and value-added features using the Nexperia PNX4903 ULC+ multimedia solution. Furthermore, we are proud that the NXP India team played a part in the development of the PNX4903 subsystem and were able to offer their insight regarding the specific needs of the Indian market."

The PNX4903, built on the AeroFONE single-chip heritage from Silicon Labs' cellular communications business, is developed using a low power, high-performance CMOS process and incorporates an ARM926-EJS MCU core and DSP core. The comprehensive solution fully integrates analog and digital baseband, RF transceiver, power management unit subsystem, battery-charging circuitry, audio subsystem and all voltage regulators (LDOs and DC/DC) in a single chip. The PNX4903 hardware reference design is accompanied by a flexible, pre-integrated and validated software complement that reduces R&D expenses and speeds time to market.

Other features of the PNX4903 include:

  • SAIC support for increased network capacity
  • Dual-band Rx and Tx (850 or 900/1,800 or 1,900)
  • MP3 playback with support for SD card
  • 40 voice polyphonic MIDI and MP3 ringtones
  • Alternate 40-kS/s audio mode for polyphonic ringtones
  • Microphone amplifier with two differential inputs
  • Two differential audio output amplifiers
  • HR/FR/EFR/AMR vocoders
  • Speaker phone noise suppression and echo cancellation.

The Nexperia PNX4903 ULC+ multimedia solution is now available globally with dedicated support for the Asian, Latin American and African markets.

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