1-GHz Signal Bandwidth RF Sampling Receiver Reference Design


Design files


The RF sampling architecture offers an alternative to the traditional super-heterodyne architecture. An RF sampling analog-to-digital converter (ADC) operates at a high sampling rate and converts signals directly from radio frequencies (RF) to digital. Because of the high sampling rate, the RF sampling architecture supports very wide signal bandwidths. Higher signal bandwidths increase the capacity of the system allowing for faster data transmission or greater user access.

The reference design features the ADC32RF45 which is a dual channel,14-bit resolution ADC sampling up to 3-GSPS. The maximum signal bandwidth is set by the ADC sampling rate divided by two. With this reference design the signal bandwidth capability exceeds 1-GHz. The maximum input frequency is set by the input bandwidth of the input buffers of the ADC and the input transformers. This reference design allows direct capture of RF signals up to 4-GHz which is suitable for all of the key telecommunication bands and S-band RADAR applications. The design includes an optimized clocking solution for maintaining the JESD204B serialized data interface and achieving the highest signal-to-noise ratio (SNR) performance.

  • 3-GSPS RF sampling ADC solution
  • 1 -GHz and larger signal bandwidth capability
  • Low noise, high dynamic range RF sampling receiver solution
  • Low-phase noise clocking solution for RF sampling ADC
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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

TIDRLY0.ZIP (7043 K)

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


Includes TI products in the design and potential alternatives.

Auto-direction voltage translators

TXB01044-Bit Bidirectional Voltage-Level Shifter with Auto Direction Sensing and +/-15 kV ESD Protect

Data sheet: PDF | HTML
Buck converters (integrated switch)

TPS620853-A Step-Down Converter with DCS-Control and Hiccup Short Circuit Protection in 2x2 HotRod Package

Data sheet: PDF | HTML
Clock jitter cleaners & synchronizers

LMK04828Ultra low-noise JESD204B compliant clock jitter cleaner with integrated 2370 to 2630-MHz VCO0.

Data sheet: PDF | HTML
High-speed ADCs (≥10 MSPS)

ADC32RF45Dual-channel, 14-bit, 3-GSPS, RF-sampling analog-to-digital converter (ADC)

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

TPS742011.5-A, low-VIN (0.8-V), low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator

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

TPS7A471-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable

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

TPS7A72002-A, low-VIN (1.43-V), ultra-low-dropout voltage regulator with power good & enable

Data sheet: PDF | HTML
RF PLLs & synthesizers

LMX25825.5-GHz high performance, wideband PLLatinum RF synthesizer

Data sheet: PDF | HTML
eFuses & hot swap controllers

TPS24005.5-V over voltage protection controller with 100-V input transient protection

Data sheet: PDF | HTML

Start development


GUI for evaluation module (EVM)

ADC32RFxxEVM SPI GUI Installer (Rev. B) — SBAC148B.ZIP (179936 K)

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Technical documentation

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Type Title Date
* Design guide 1-GHz Signal Bandwidth RF Sampling Receiver Solution Apr. 18, 2016
Technical article Push your receiver bandwidths past 1-GHz in high-end applications May 26, 2016

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