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TIDA-01215

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

Design files

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
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Design files & products

Design files

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

download Design guide — TIDA-01215
TIDUC89.PDF (1455 KB)

Reference design overview and verified performance test data

download Assembly drawing — TIDA-01215
TIDRPE2.PDF (115 KB)

Detailed overview of design layout for component placement

download Bill of materials (BOM) — TIDA-01215
TIDRPE1.PDF (258 KB)

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

download CAD/CAE symbol — TIDA-01215
TIDRPE4.ZIP (2164 KB)

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

download Gerber file — TIDA-01215
TIDCD24.ZIP (979 KB)

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

download PCB layout — TIDA-01215
TIDRPE3.PDF (2454 KB)

PCB layer plot file used for generating PCB design layout

download Schematic — TIDA-01215
TIDRPE0.PDF (189 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

High-speed DACs (>10 MSPS)

DAC38RF87 — Dual-Channel, 14-Bit, 6.2-GSPS, 6x-24x Interpolating, 6 GHz GSM PLL Digital-to-Analog Converter

Data sheet: PDF | HTML
Clock jitter cleaners

LMK04828 — Ultra low-noise JESD204B compliant clock jitter cleaner with integrated 2370 to 2630-MHz VCO0.

Data sheet: PDF | HTML
eFuses & hot swap controllers

TPS2400 — 5.5-V over voltage protection controller with 100-V input transient protection

Data sheet: PDF | HTML
High-speed DACs (>10 MSPS)

DAC38RF96 — Dual-Channel, 14-Bit, 9-GSPS, 12x-24x Interpolating, 9 GHz GSM PLL Digital-to-Analog Converter (DAC)

Data sheet: PDF | HTML
High-speed DACs (>10 MSPS)

DAC38RF85 — 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)

Data sheet: PDF | HTML
High-speed DACs (>10 MSPS)

DAC38RF97 — Dual-Channel, 14-Bit, 6-GSPS, 12x-24x Interpolating, 6-GHz GSM PLL Digital-to-Analog Converter (DAC)

Data sheet: PDF | HTML
High-speed DACs (>10 MSPS)

DAC38RF86 — Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 9 GHz GSM PLL Digital-to-Analog Converter (DAC)

Data sheet: PDF | HTML
High-speed DACs (>10 MSPS)

DAC38RF83 — Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)

Data sheet: PDF | HTML
High-speed DACs (>10 MSPS)

DAC38RF84 — 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)

Data sheet: PDF | HTML
High-speed DACs (>10 MSPS)

DAC38RF93 — Dual-Channel, 14-Bit, 9-GSPS, 12x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)

Data sheet: PDF | HTML
High-speed DACs (>10 MSPS)

DAC38RF82 — Dual-Channel, 14-Bit, 9-GSPS, 1x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)

Data sheet: PDF | HTML
High-speed DACs (>10 MSPS)

DAC38RF90 — Dual-Channel, 14-Bit, 9-GSPS, 12x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)

Data sheet: PDF | HTML
High-speed DACs (>10 MSPS)

DAC38RF80 — Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)

Data sheet: PDF | HTML
AC/DC & DC/DC converters (integrated FET)

LM27761 — Low-Noise Regulated Inverter with Integrated LDO

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

TPS74401 — 3-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

TPS7A8101 — 1-A, high-PSRR, adjustable ultra-low-dropout voltage regulator with enable

Data sheet: PDF | HTML
AC/DC & DC/DC converters (integrated FET)

TPS62085 — 3-A Step-Down Converter with DCS-Control and Hiccup Short Circuit Protection in 2x2 HotRod Package

Data sheet: PDF | HTML
AC/DC & DC/DC converters (integrated FET)

TPS62095 — 4A Synchronous Step Down Converter with DCS Control

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

TPS7A47 — 1-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable

Data sheet: PDF | HTML
High-speed DACs (>10 MSPS)

DAC38RF89 — Dual-Channel, 14-Bit, 8.4-GSPS, 1x-24x Interpolating, 5 & 7.5 GHz PLL Digital-to-Analog Converter

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

LP5907 — 250-mA, low-noise, high-PSRR, ultra-low-dropout voltage regulator with low IQ and enable

Data sheet: PDF | HTML

Start development

Hardware

Evaluation board

DAC38RF82EVM — DAC38RF82 Dual-Channel, 14-Bit, 9-GSPS, 1x-24x Interpolating, 6 & 9 GHz PLL DAC 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 (...)
EVM user’s guide: PDF
Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-01215 — Power Supply Reference Design for Optimizing Spur and Phase Noise in RF-sampling DACs
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DAC38RF82EVM — DAC38RF82 Dual-Channel, 14-Bit, 9-GSPS, 1x-24x Interpolating, 6 & 9 GHz PLL DAC Evaluation Module

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Hardware development
Reference design
TIDA-01215 — Power Supply Reference Design for Optimizing Spur and Phase Noise in RF-sampling DACs
TI’s Standard Terms and Conditions for Evaluation Items apply.

Software

GUI for evaluation module (EVM)

SLAC722 — DAC38RF8x EVM GUI

Supported products & hardware

Supported products & hardware

Products
High-speed DACs (>10 MSPS)
DAC38RF80 — Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC) DAC38RF82 — Dual-Channel, 14-Bit, 9-GSPS, 1x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC) DAC38RF83 — Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC) DAC38RF85 — 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC) DAC38RF86 — Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 9 GHz GSM PLL Digital-to-Analog Converter (DAC) DAC38RF87 — Dual-Channel, 14-Bit, 6.2-GSPS, 6x-24x Interpolating, 6 GHz GSM PLL Digital-to-Analog Converter DAC38RF89 — Dual-Channel, 14-Bit, 8.4-GSPS, 1x-24x Interpolating, 5 & 7.5 GHz PLL Digital-to-Analog Converter
Hardware development
Reference design
TIDA-01215 — Power Supply Reference Design for Optimizing Spur and Phase Noise in RF-sampling DACs TIDA-01240 — RF-Sampling S-Band Radar Transmitter Reference Design
Evaluation board
DAC38RF80EVM — DAC38RF80 Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL DAC Evaluation Module DAC38RF82EVM — DAC38RF82 Dual-Channel, 14-Bit, 9-GSPS, 1x-24x Interpolating, 6 & 9 GHz PLL DAC Evaluation Module DAC38RF89EVM — DAC38RF89 Dual-Channel, 14-Bit, 8.4GSPS, 1x-24x Interpolating, 5 & 7.5 GHz PLL DAC Evaluation Module
Download options

SLAC722 — DAC38RF8x EVM GUI

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Version: 01.00.00.0D
Release date: Aug 4, 2020
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DAC38RF8x EVM GUI (zip)  — 216778 K

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Products
High-speed DACs (>10 MSPS)
DAC38RF80 — Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC) DAC38RF82 — Dual-Channel, 14-Bit, 9-GSPS, 1x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC) DAC38RF83 — Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC) DAC38RF85 — 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC) DAC38RF86 — Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 9 GHz GSM PLL Digital-to-Analog Converter (DAC) DAC38RF87 — Dual-Channel, 14-Bit, 6.2-GSPS, 6x-24x Interpolating, 6 GHz GSM PLL Digital-to-Analog Converter DAC38RF89 — Dual-Channel, 14-Bit, 8.4-GSPS, 1x-24x Interpolating, 5 & 7.5 GHz PLL Digital-to-Analog Converter
Hardware development
Reference design
TIDA-01215 — Power Supply Reference Design for Optimizing Spur and Phase Noise in RF-sampling DACs TIDA-01240 — RF-Sampling S-Band Radar Transmitter Reference Design
Evaluation board
DAC38RF80EVM — DAC38RF80 Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL DAC Evaluation Module DAC38RF82EVM — DAC38RF82 Dual-Channel, 14-Bit, 9-GSPS, 1x-24x Interpolating, 6 & 9 GHz PLL DAC Evaluation Module DAC38RF89EVM — DAC38RF89 Dual-Channel, 14-Bit, 8.4GSPS, 1x-24x Interpolating, 5 & 7.5 GHz PLL DAC Evaluation Module

Release Information

The design resource accessed as www.ti.com/lit/zip/slac722 or www.ti.com/lit/xx/slac722d/slac722d.zip has been migrated to a new user experience at www.ti.com/tool/download/SLAC722. Please update any bookmarks accordingly.

Technical documentation

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Type Title Date
* Design guide Efficient Power Supply Scheme for RF-Sampling DAC Reference Design Aug 22, 2016
Data sheet DAC38RFxx Dual- or Single-Channel, Single-Ended or Differential Output, 14-Bit, 9-GSPS, RF-Sampling DAC With JESD204B Interface and On-Chip PLL datasheet (Rev. D) PDF | HTML Dec 28, 2023

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