Wideband Receiver Reference Design for Upstream DOCSIS 3.1 Applications


Design files


This reference design consists of an analog front-end (AFE) signal chain for wideband receiver applications using the LMH2832 digitally controlled variable gain amplifier (DVGA) and ADS54J40 analog-to-digital converter (ADC). The design is primarily targeted for upstream DOCSIS 3.1 receiver applications specified for cable modem termination systems (CMTS) and supports up to 196 MHz of upstream signal bandwidth. The circuit solves the filtering and analog signal processing requirements for the DOCSIS 3.1 standard, which makes it easier for system designers to readily incorporate the design on the CMTS-side of the upstream signal path.

  • AC-coupled signal path from 100 kHz to 204 MHz with 196 MHz of upstream-signal-bandwidth support for DOCSIS 3.1 applications
  • 58 dBFs of minimum system SNR (200 MHz BW) for –1-dBFs input at the ADC
  • 70 dBFs of minimum system SFDR for –1-dBFs input at the ADC
  • 1.71 A of average active-state current consumption on 5-V nominal wall mount power supply
  • Output data rate of four lanes per ADC at 5.0 Gbps with JESD204B interface subclass-1 support
Personal electronics
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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.


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

TIDRPN4.ZIP (2005 K)

Detailed overview of design layout for component placement


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

TIDCD46.ZIP (3337 K)

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

TIDRPN5.PDF (2660 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

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Start development


GUI for evaluation module (EVM)

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Technical documentation

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Type Title Date
* Design guide Wideband Receiver Reference Design for Upstream DOCSIS 3.1 Applications Oct. 26, 2016

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