Tablet: Multimedia

Tablet featuring power and battery management (1S/2S), audio touch screen control, and wireless connectivity.

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Design Considerations

Tablet: Multimedia

Tablet is a handheld electronic device which utilizes a touch screen or a stylus pen to access or process information that allow for greater mobility. Based on different market focuses and system requirements, it could be broken up into two main categories: consumer/multimedia tablet and enterprise tablet. This design is focused on the consumer/multimedia tablet and high end enterprise tablet that requires high definition video decoding; for TI enterprise tablet focused solution, please go to Enterprise Tablet reference design based on TI Sitara ARM processor at here.

Multimedia Tablet is primarily designed to run multimedia and web-based applications which require considerable processing power. Its main advantage over a laptop PC or a Notebook PC is its portability which is achieved by having a small form factor and less number of peripheral devices. Additionally, it uses a touch screen as the primary interface to control and interact with the product. Key requirements for a Tablet include:

  • small form factor: portability
  • wireless connectivity options
  • power efficiency

Applications Processor

The Cortex A8/ A9/ A15 processors are designed and optimized for advanced multimedia HD capabilities supporting full multi-standard playback and record functionality. It manages all the critical functions including text or video displays and audio interfaces. Typical operating systems used are Linux and Android.

Wireless Connectivity

TI's WiLink solutions are a single-chip WLAN, Bluetooth, GPS, and FM solution that delivers low-power, small form-factor, and low-cost requirements of portable equipment manufacturers worldwide.

Display

TI provides solutions for the LCD/OLED/eINK displays which include the low-power, high-ESD protection touch screen controllers, display interface products, and LCD bias and backlight solutions. Light sensors are also essential for continuous monitoring of ambient lighting to keep the power consumption for backlighting to down to a minimum.

Audio

The TI audio codecs are low-power devices that integrate stereo headphone and class-D speaker amplifiers to extend battery life. They are capable of advanced audio processing for improved voice and music. They are pin-to-pin and SW compatible to allow enable quick and easy product spin. Additional power savings can be achieved by using class-G DirectPath (capfree) stereo headphone amplifier.

Power Management

TI provides the complete power management solution for the Tablet design including highly integrated Power Management Units (PMU) for different ARM Cortex processors. The outstanding efficiency of the power conversion extends battery run time in addition to minimizing heat dissipation.

Battery Management

Accurate fuel gauging maximizes usable battery capacity and ensures orderly shutdown. The option to choose between system side and pack side battery fuel gauge offers customers flexibility in design. TI offers a large portfolio of linear and switching charger ICs both for single cell and double cell batteries. In case a high voltage charger is used, the charger front end protection IC is not needed. However, if the charger is integrated in a low voltage PMU or chipset, the front end IC is very important to protect the system from over-voltage and over-current.

Reference Designs

Electronic Tablet Reference Design

SupplyFrame

Application Notes (11)

Title Abstract Type Size (KB) Date Views
PDF 727 KB 11 Apr 2014 1026
PDF 186 KB 08 Jan 2014 5863
HTM 8 KB 25 Jan 2012 434
HTM 8 KB 27 Jul 2009 1959
PDF 570 KB 11 Mar 2009 556
HTM 8 KB 03 Nov 2008 210
HTM 8 KB 08 Oct 2008 254
HTM 8 KB 28 Jul 2008 337
HTM 8 KB 22 Feb 2008 547
HTM 8 KB 28 Jan 2008 883
PDF 169 KB 10 Aug 2007 1839
    

Reference Designs

Selection and Solution Guides

Selection Guides (5)

Title Abstract Type Size (KB) Date Views
PDF 9.51 MB 01 May 2014 28423
PDF 257 KB 08 Apr 2013 1181
PDF 80 KB 18 Jan 2013 1951
PDF 269 KB 06 Sep 2012 344
PDF 1.87 MB 24 Jun 2008 210

Solution Guides (3)

Title Abstract Type Size (KB) Date Views
PDF 903 KB 16 Dec 2013 1418
PDF 290 KB 08 Jan 2013 2589
PDF 5.43 MB 15 Dec 2011 3331

Tools and Software

Name Part # Company Software/Tool Type
MSP430TCH5E Capacitive Touch with Haptics Software Development Kit MSP430-HAPTOUCH-SDK Texas Instruments Software Development Kits (SDK)

Product Bulletin & White Papers

White Papers (1)

Title Abstract Type Size (MB) Date Views
PDF 113 KB 14 Feb 2012 263

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