SONAR Receiver Path Sub-System Reference Design Using an 8 Channel Analog Front End


Design files


This reference design is a demonstration of a SONAR receive-path sub-system using the integrated analog front end (AFE) AFE5809. AFE5809 features eight channels of analog signal conditioning  (LNA + VCAT + PGA) and digital processing (ADC + digital demodulator) that brings a high level of system receive-path integration and enables high-performance echo-location imaging for high-end SONAR systems. This reference design demonstrates this SONAR sub-system with a schematic modified from the AFE5809EVM. The test data included is taken by combining AFE5809EVM with TSW1400EVM FPGA capture card and their respective software GUIs in order simulate a receive chain solution capable of high-performance measurement.

  • Capable of measuring SONAR signals from 30 kHz to 32.5 MHz
  • Digital demodulator for envelope detection and beamforming
  • Variable-sample frequency 10 MSPS to 65 MSPS with external clock capability
  • Variable-gain settings with a -4-dB to 54-dB range
  • Variable-input impedance settings
  • Tested and provides reference materials including schematics and bill of material (BOM)
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU702.PDF (3303 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement

TIDRJG5.ZIP (24661 K)

Files used for 3D models or 2D drawings of IC components

TIDCBL2.ZIP (1796 K)

Design file that contains information on physical board layer of design PCB


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

High-speed op amps (GBW ≥ 50 MHz)

LMH6629Ultra-low-noise high-speed operational amplifier with shutdown

Data sheet: PDF | HTML
Inverting buffers & drivers

SN74LVC1G06Single 1.65-V to 5.5-V inverter with open-drain outputs

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS7961-A, low-dropout voltage regulator with enable

Data sheet: PDF | HTML
Precision op amps (Vos<1mV)

OPA2111.1nV/rtHz Noise, Low-Power, Precision Operational Amplifier

Data sheet: PDF | HTML
Ultrasound AFEs

AFE5809Fully-Integrated, 8-Ch Ultrasound Analog Front End w/ Passive CW Mixer and Digital I/Q Demodulation

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide SONAR Receiver Path Sub-System Using the AFE5809 Design Guide Nov. 23, 2014

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