GPS: Personal Navigation Device

GPS: Personal Navigation Device Solutions from Texas Instruments.

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Power: AC/DC Supply

Design Considerations

Global Positioning System (GPS)technology has matured into a resource that goes far beyond its original design goals of navigation, and asset tracking. GPS Portable Navigation Devices (PND) provide accurate location and integrate many consumer features, as people use GPS to be more productive, and make their automotive commute safer, and easier.

GPS Module and Processor: Accurate location is the main goal of GPS; achieving portability requires smaller size, lower cost, lower power consumption, and higher performance discrete GPS solutions. Sitara ARM® Application Processors are a power-efficient, ARM-based architecture application processor that combines high performance productivity applications with mobile entertainment applications. The NaviLink 5.0 GPS is the smallest GPS solution (board area 25 mm2), the lowest total bill-of-materials, and lowest power consumption. PNDs use other sensors such as altimeter, humidity, temperature and accelerometers to calculate position. Sensor signal conditioning with the PGA30x and ADS78xx family is enable increased accuracy.

Power Management: Special DC/DC buck converters like TPS624xx/TPS65xxx families with advanced dynamic voltage scaling meet the needs of the newest processors. TI’s TPS630xx family offers 96% efficiency over a wide battery voltage range, with input voltage down to 1.8 volts extending battery life and providing support for Li-ion battery technology. For additional low noise power rails the TPS799xx/TPS717xx LDOs are available. Requirements for wall-plug and USB-port charging can be addressed with the bq240xx family. Innovative next-generation gas gauge solutions are offered in the bq275xx using "Impedance Track" to automatically learn/detect battery characteristics.

Audio Considerations: Integrating entertainment applications like music players demands improved audio features such as multi-band equalizers and echo/noise cancellation while maintaining low power consumption. Newer generation TI audio codecs, such as the TLV320AIC3254, process sound with better audio quality and longer battery life. Class-D amplifiers continue to increase in popularity because of their efficiency and their small-footprint packages.

Display/Lighting and Touch Screen Considerations: TI offers touch-screen controller solutions like TSC21xx/TSC23xx with integrated ESD protection. The TSC200x TSCs achieves low power consumption and are immune to vibration and display noise; small-footprint packages are available. LED drivers like TPS61xxx/75xxx offer flexibility and enable pulse-width modulation and digital dimming with up to 32 steps for brightness control in a small, 2x2 mm2 package. TI provides OLED-specific drivers like TPS6114x/6512x. Voltage levels compatibility problems are solved with level shifters such as SN74AVC20Txxx.

Clocks: The CDCE9xx clock families are modular PLL-based low cost, high-performance, programmable clock synthesizers, multipliers and dividers, generating up to 9 output clocks from a single input frequency.

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Application Notes (7)

Title Abstract Type Size (KB) Date Views
HTM 8 KB 17 Jul 2007 586
HTM 8 KB 02 Jan 2007 707
HTM 8 KB 15 Sep 2006 1069
HTM 8 KB 28 Oct 2005 824
HTM 8 KB 22 Jun 2004 1930
HTM 8 KB 24 May 2004 13170
HTM 8 KB 21 Oct 1999 756

User Guides (5)

Title Abstract Type Size (KB) Date Views
htm 8 KB 30 Jun 2014 17573
pdf 137 KB 15 May 2013 2847
pdf 426 KB 18 Dec 2012 1186
htm 8 KB 19 Apr 2007 684
pdf 124 KB 21 Feb 2007 1097
    

Reference Designs

Description Part Number Company Tool Type
Synchronous Boost (4.2V@370mA, 1.5Apk) for GSM/GPRS PMP4737 Texas Instruments Reference Designs

Selection and Solution Guides

Selection Guides (4)

Title Abstract Type Size (KB) Date Views
PDF 269 KB 06 Sep 2012 826
PDF 4.91 MB 24 Jul 2012 1404
PDF 6.82 MB 16 Aug 2011 932
PDF 4.16 MB 23 Jul 2009 6213

Tools and Software

Name Part # Company Software/Tool Type
Android Development Kit for Sitara Microprocessors ANDROIDSDK-SITARA Texas Instruments Software Development Kits (SDK)
Code Composer Studio (CCS) Integrated Development Environment (IDE) CCSTUDIO Texas Instruments SW Development Tools, IDEs, Compilers
Linux EZ Software Development Kit (EZSDK) for Sitara™ Processors LINUXEZSDK-SITARA Texas Instruments Software Development Kits (SDK)

Product Bulletin & White Papers

Product Bulletin (1)

Title Abstract Type Size (MB) Date Views
PDF 139 KB 14 Mar 2007 1263

White Papers (6)

Title Abstract Type Size (MB) Date Views
PDF 98 KB 08 Apr 2013 867
PDF 152 KB 14 Mar 2013 2076
PDF 76 KB 27 Sep 2012 922
PDF 667 KB 05 Mar 2012 1718
PDF 113 KB 14 Feb 2012 667
PDF 77 KB 11 Mar 2008 1782

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