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Personal Digital Assistant (PDA)

Personal Digital Assistant (PDA) Solutions from Texas Instruments.

Block Diagram

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AC/DC Supply Touch Screen Controller Speaker Amp OMAP35x Clock Keypad Control USB Protection Level Shifter LCD Backlight Battery Management Power Management Unit Low-Noise Analog Power System Power OMAP35x Processor WiFi/Zigbee Low Power Wireless

Design Considerations

A Personal Digital Assistant (PDA) is a portable computing machine. Like a notebook PC (and in contrast to an embedded portable system such as a GPS, medical, test device), the PDA can run a wide variety of applications. The core subsystems include:

  • Processor/Memory: The processor runs applications stored in memory. The OS is stored in non-volatile memory such as NAND/NOR Flash. Application code and data may be loaded in SDRAM or SRAM.
  • User Interface: Allows user to input data to the PDA using input commands via touch screen or keypad. Video, pictures, internet, applications are displayed on a small LCD screen or sometimes can be displayed on a larger screen via a TV or projector connection. Audio can be output through the headphone connection, external audio out jacks, or possibly built-in speakers. Newer generation TI audio codecs process sound with better audio quality and longer battery life.
  • Connectivity: Allows PDA to connect to other peripherals, such as PCs via USB or Wireless LAN, headsets via Bluetooth, TVs or monitors via TV out, S-Video, or HDMI transceivers, memory cards via MMC/SD.
  • Power Management Unit: Integrates an audio/video codec, a High-Speed USB transceiver, a keypad controller, battery management, and an on-board power manager that monitors use of various functional blocks and shuts down or reduces power per application demand.

Application Notes

Most useful technical documents for Personal Digital Assistant (PDA) Help

     

Reference Designs

Description Part # Company
CC1101EM 315 and 433MHz Reference Design CC1101EM433_REFDES Texas Instruments
CC1101EM 868 and 915MHz Reference Design CC1101EM868-915_REFDES Texas Instruments
CC1110EM 315MHz Reference Design CC1110EM315_REFDES Texas Instruments
CC1110EM 433MHz Reference Design CC1110EM433_REFDES Texas Instruments
CC1110EM 868 and 915MHz Reference Design CC1110EM868-915_REFDES Texas Instruments
CC2500 Reference Design (62 mil layer spacing) CC2500_REFDES_062 Texas Instruments
CC2500EM Reference Design CC2500EM_REFDES Texas Instruments
CC2510EM Reference Design CC2510EM_REFDES Texas Instruments

Selection and Solution Guides

Most useful technical documents for Personal Digital Assistant (PDA) Help

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