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Land mobile radio

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Block diagram

Land mobile radio

Block diagram

Overview

Our integrated circuits and reference designs help you create non-military land mobile radio designs with low-power transceivers over multiple carrier frequencies in multiple environments.

Design requirements

    Non-military land mobile radio systems often require:

  • Low-power, high-speed radio frequency (RF) signal chains for flexible architecture and extended battery life.
  • Ultra-low phase noise clocks for superior signal-to-noise ratio (SNR) through the analog front end.
  • Low-noise and high-efficiency power for high sensitivity.
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Block diagram

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Tx/Rx module Tx/Rx module Display interface Display interface Capacitive touch Capacitive touch LCD bias LCD bias LED driver LEDdriver Screen controller Screen controller LNA LNA PA PA Sensing Sensing Temp Temp Current Current IQ modulator IQ modulator From digital processing From digital processing To digital processing To digital processing Communication interface Communication interface USB USB Ethernet Ethernet RS485/422/232 RS485/422/232 I2C I2C Digital processing Digital processing Voltage translation Voltage translation Signal conditioner Signal conditioner FPGA FPGA DSP + ARM DSP + ARM Audio interface Audio interface Audio codec Audio codec Speaker amp Speaker amp Audio amp Audio amp Memory Memory DDR DDR DDR power DDRpower Flash Flash Self diagnostics/monitoring Self diagnostics/monitoring ADC ADC DAC DAC Amp Amp MCU MCU Voltage diagnostics & monitoring Voltage diagnostics & monitoring Voltage reference Voltagereference Voltage supervisor Voltagesupervisor Load switch Load switch Signal input/output protection Signal input/output protection ESD ESD TVS protection TVSprotection Low noise supply Low noise supply LDO LDO Switching supply Switching supply Boost converter Boost converter Buck converter Buck converter PMIC PMIC Wireless interface Wireless interface Bluetooth Bluetooth Wi-fi Wi-fi GPS GPS RF front-end receiver RF front-end receiver VGA VGA Hi speed ADC Hi speed ADC AMP AMP Clock & timing Clock & timing Clock buffer Clock buffer VCO VCO DAC DAC PLL PLL Input power protection Input power protection E-Fuse E-Fuse Input user interface Input user interface Keyboard scanner Keyboard scanner I2C expander I2C expander

Technical documentation

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Type Title Date
User guide JESD204B Start Up: Configuration Requirements and Debug 26 Oct 2012
Analog Design Journal Designing a modern power supply for RF sampling converters 25 May 2017
Application note Common Design Challenges and Proper Use of Fully Differential Amplifiers (FDA) 25 May 2016
White paper Ready to make the jump to JESD204B? White Paper (Rev. B) 21 Apr 2015
Analog Design Journal Designing for low distortion with high-speed op amps 16 Mar 2005
Application note LMX2571 Using a Programmable Input Multiplier to Minimize Integer Boundary Spurs 15 Feb 2017
Application note Frequency Margining Using TI High-Performance Clock Generators (Rev. A) 12 Dec 2015
Application note Powering Sensitive Noise ADC Designs with the TPS62913 Low-Noise Buck Converter PDF | HTML 11 May 2022
Application note Keystone Error Detection and Correction EDC ECC (Rev. A) 10 May 2022
Technical article Minimize noise and ripple with a low-noise buck converter PDF | HTML 07 Aug 2023

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