TI PDA解决方案

<中电RONG>    Personal Digital Assistant (PDA)

    Block Diagram

    Instrumentation Amplifiers

    Microphone Preamplifiers

    DC/DC Converters (Integrated Switch)

    Inductorless DC/DC Regulators (Charge Pumps)

    CODECs

    Voice-Band Codecs

    Design Considerations

    A 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 be 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 EE/FLASH/ROM. Applications may be loaded in FLASH or DRAM.

    User Interface
    - allows user to input/output data from the PDA using input commands via touch screen and output MP3 to the earplug.

    Connectivity
    - allows PDA to connect to other computing machines (PC, Bluetooth, WLAN, Medical).

    Power Conversion
    - converts input power (battery, wall plug or USB port) to run various functional blocks.

（源自：ST网）