Telecom Shelter: Filter Unit

Block diagram (SBD) for a Filter Unit featuring TI’s OMAP-L13x Processors, Power Management Devices, Data Converters, Amplifiers, and Interface Devices.

Block Diagram

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VSWR Monitor with A/D Conversion Motor Driver (optional) Power Monitoring Power Monitoring LNA Gain Control with D/A Conversion AISG Modem I2C I/O Expander WiMax & Wireless Infrastructure Equipment Powering the Telecom Shelter Temperature Sensor Hot Swap and Inrush Current Limiting Hot Swap and Inrush Current Limiting DC/DC Conversion LNA Power Core & I/O Power System Power Microcontroller + Ethernet Connection

Design Considerations

Telecom Shelter: Filter Unit

Filter units are filters, diplexers, duplexers and combiners used to filter, combine transmit and/or receive signals in the RF domain. TI has a wide range of products like ADCs, DACs, Microcontrollers, Temperature Sensors and Power Solutions meeting the requirements of filter unit designs.

OMAP-L1x applications processors include ARM9 and ARM9-plus-DSP architectures and offer a variety of peripherals for networking and run Linux or the DSP/BIOS™ real-time kernel for operating system flexibility. For host controlling, the OMAP-L1x product line is also pin-for-pin compatible with various devices in the new TMS320C674x DSP series. Power consumption ranges from 8 mW in standby to 400 mW total power.

In-rush limiting is implemented to limit the in-rush current going to the board at startup. The TPS2490 can be used to smoothly control the voltage and current ramp up.

Application Notes

Most useful technical documents for Telecom Shelter: Filter Unit Help

    

Selection and Solution Guides

Most useful technical documents for Telecom Shelter: Filter Unit Help

Selection Guides

Solution Guides

Tools and Software

Name Part # Company Software/Tool Type
Anti-Aliasing Calculation Tool for A to D Converters ANTIALIASINGCALC Texas Instruments Calculation Utilities
SPICE-Based Analog Simulation Program TINA-TI Texas Instruments Simulators

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