Block Diagram (SBD) - Tablet

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Design Considerations

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A Tablet is a handheld electronic device 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 OMAP3621 processor OMAP36x is designed and optimized for advanced multimedia capabilities supporting full multi-standard playback and record functionality up to 720p HD resolutions 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 7.0 solution is 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 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 TLV320AIC3100/10/11 are low-power audio codecs 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. Software for OMAP is available. Additional power savings can be achieved by using the TPA6141A2, a class-G DirectPath (capfree) stereo headphone amplifier.

Power Management: TI provides the complete power management solution for the Tablet design including a Power Management Unit (PMU) integrated with a USB-OTG Transceiver and a keypad controller. 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.

Application Notes (11)

Title	Abstract	Type	Size (KB)	Date	Views
Coefficient RAM Access Mechanisms.. (Rev. D)		PDF	140 KB	25 Jan 2012	1638
Coefficient RAM Access Mechanisms (Rev. C)	Read Abstract	HTM	8 KB	17 Jul 2011	1638
Basic Calculation of a Boost Converter's Power Stage (Rev. B)		PDF	190 KB	07 Jul 2010	5868
LDO PSRR Measurement Simplified	Read Abstract	HTM	8 KB	27 Jul 2009	3786
Improving battery safety, charging, and fuel gauging in portable media apps		PDF	570 KB	11 Mar 2009	901
Using the bq24075 Charger and bq27500/1 Fuel Gauge	Read Abstract	HTM	8 KB	03 Nov 2008	725
TPS65950/30/20 32 KHz Oscillator Schematic and PCB Layout Guidelines	Read Abstract	HTM	8 KB	08 Oct 2008	1407
Single Cell Gas Gauge Application Book	Read Abstract	HTM	8 KB	28 Jul 2008	1007
Single Cell Gas Gauge Circuit Design	Read Abstract	HTM	8 KB	22 Feb 2008	938
Optimizing Transient Response of Internally Compensated DC-DC Converters	Read Abstract	HTM	8 KB	28 Jan 2008	1101
Calibration in touch-screen systems		PDF	169 KB	10 Aug 2007	2369

Selection and Solution Guides

Selection Guides (4)

Title	Type	Size (KB)	Date	Views
Power Management Units for Embedded Processors (Rev. F)	PDF	89 KB	22 Feb 2012	6240
Power Management Guide 2012 (Rev. L)	PDF	9.71 MB	09 Feb 2012	23012
Power Management Units for Embedded Processors (Rev. E)	PDF	328 KB	16 Dec 2010	6240
Battery Charger Catalog 3Q 2008	PDF	1.87 MB	24 Jun 2008	799

Solution Guides (3)

Title	Type	Size (KB)	Date	Views
TI Solutions for Tablets and eBooks (Rev. C)	PDF	1.27 MB	06 Mar 2012	16701
Audio Guide 1Q 2012 (Rev. G)	PDF	5.4 MB	15 Dec 2011	18243
Video and Vision (formerly Imaging Solutions) Guide 4Q 2009 (Rev. G)	PDF	3.37 MB	14 Dec 2009	5249

Product Bulletin & White Papers

White Papers (1)

Title	Abstract	Type	Size (MB)	Date	Views
Design Considerations for a Natural User Interface (NUI)		PDF	113 KB	14 Feb 2012	1472

News Releases & Authored Articles

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Support and Community

Training & Events

Name	Type	Available During
Texas Instruments' Training Lab - ARM Tech Conference 2010 This self-paced training course provides an introduction to the various components that make up the C66x KeyStone devices.	On-Line Training	On Demand
Discover TI’s latest Operational Amplifiers for Industrial and Consumer markets This session highlights the latest 36V operational amplifier families.	On-Line Training	On Demand
Delfino Floating Point Series Overview The Delfino line is part of the C2000 device portfolio, which is split into fixed and floating–point categories.	On-Line Training	On Demand

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Tablet

Tablet featuring OMAP(tm), battery management (1S/2S), touch screen control, and wireless connectivity with WiFi, Bluetooth and FM capabilities