TIDA-01215

Power Supply Reference Design for Optimizing Spur and Phase Noise in RF-sampling DACs

TIDA-01215

Design files

Overview

This reference design provides an efficient power supply scheme to power-up the RF-sampling DAC38RF8x digital-to-analog data converter (DAC) without sacrificing performance and also reduces board area and BOM. The reference design uses both DC/DC switchers and an LDO to power-up the DAC38RF8x while achieving high analog performance (spurious and phase noise) and minimizing power efficiency trade-offs. The design method outlined here can be extended to the power supply design of other RF-sampling data converters.

Features
  • Provides an Efficient Power Solution for RF-Sampling DACs
  • Enables Optimal Spur and Phase Noise Performance
  • Reduces Board Area
  • Lowers Bill of Materials (BOM) Cost

Design files & products

Design files

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

TIDUC89.PDF (1455 K)

Reference design overview and verified performance test data

TIDRPE0.PDF (189 K)

Detailed schematic diagram for design layout and components

TIDRPE1.PDF (257 K)

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

TIDRPE2.PDF (114 K)

Detailed overview of design layout for component placement

TIDRPE4.ZIP (2164 K)

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

TIDCD24.ZIP (978 K)

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

TIDRPE3.PDF (2454 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

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

Data sheet document-pdfAcrobat PDF open-in-new HTML
Buck converters (integrated switch)

TPS620954A Synchronous Step Down Converter with DCS Control

Data sheet document-pdfAcrobat PDF open-in-new HTML
Charge pumps (inductorless)

LM27761Low-Noise Regulated Inverter with Integrated LDO

Data sheet document-pdfAcrobat PDF open-in-new HTML
Clock jitter cleaners & synchronizers

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

Data sheet document-pdfAcrobat PDF open-in-new HTML
High-speed DACs (>10MSPS)

DAC38RF8414-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)

Data sheet document-pdfAcrobat PDF open-in-new HTML
High-speed DACs (>10MSPS)

DAC38RF8514-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

LP5907250-mA, low-noise, high-PSRR, ultra-low-dropout voltage regulator with low IQ and enable

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TPS744013-A, low-VIN (0.8-V), low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

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

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TPS7A81011-A, high-PSRR, adjustable ultra-low-dropout voltage regulator with enable

Data sheet document-pdfAcrobat PDF open-in-new HTML
Transmitters

DAC38RF80Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)

Data sheet document-pdfAcrobat PDF open-in-new HTML
Transmitters

DAC38RF82Dual-Channel, 14-Bit, 9-GSPS, 1x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)

Data sheet document-pdfAcrobat PDF open-in-new HTML
Transmitters

DAC38RF83Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)

Data sheet document-pdfAcrobat PDF open-in-new HTML
Transmitters

DAC38RF86Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 9 GHz GSM PLL Digital-to-Analog Converter (DAC)

Data sheet document-pdfAcrobat PDF open-in-new HTML
Transmitters

DAC38RF87Dual-Channel, 14-Bit, 6.2-GSPS, 6x-24x Interpolating, 6 GHz GSM PLL Digital-to-Analog Converter

Data sheet document-pdfAcrobat PDF open-in-new HTML
Transmitters

DAC38RF89Dual-Channel, 14-Bit, 8.4-GSPS, 1x-24x Interpolating, 5 & 7.5 GHz PLL Digital-to-Analog Converter

Data sheet document-pdfAcrobat PDF open-in-new HTML
Transmitters

DAC38RF90Dual-Channel, 14-Bit, 9-GSPS, 12x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)

Data sheet document-pdfAcrobat PDF open-in-new HTML
Transmitters

DAC38RF93Dual-Channel, 14-Bit, 9-GSPS, 12x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)

Data sheet document-pdfAcrobat PDF open-in-new HTML
Transmitters

DAC38RF96Dual-Channel, 14-Bit, 9-GSPS, 12x-24x Interpolating, 9 GHz GSM PLL Digital-to-Analog Converter (DAC)

Data sheet document-pdfAcrobat PDF open-in-new HTML
Transmitters

DAC38RF97Dual-Channel, 14-Bit, 6-GSPS, 12x-24x Interpolating, 6-GHz GSM PLL Digital-to-Analog Converter (DAC)

Data sheet document-pdfAcrobat PDF open-in-new HTML
eFuses & hot swap controllers

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

Data sheet document-pdfAcrobat PDF open-in-new HTML

Start development

Hardware

Evaluation board

DAC38RF82EVM – DAC38RF82 Evaluation Module

The DAC38RF82EVM is the circuit board for evaluating DAC38RF82/83/85/93 digital to analog converters (DACs). The EVM can be used to evaluate the performance of the DAC up to 9GSPS sampling rate and it is designed to work with the TSW14J56 EVM. The available FMC connector also makes it possible to (...)
In stock
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Software

GUI for evaluation module (EVM)

DAC38RF8x EVM GUI (Rev. D) – SLAC722D.ZIP (216778 K)

Technical documentation

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Type Title Date
Design guide Efficient Power Supply Scheme for RF-Sampling DAC Reference Design Aug. 22, 2016

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