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

Communications equipment

Industrial

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Design files & products

Design files

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

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Design guide — TIDA-01215

TIDUC89.PDF (1455 K)

Reference design overview and verified performance test data

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Schematic — TIDA-01215

TIDRPE0.PDF (189 K)

Detailed schematic diagram for design layout and components

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Bill of materials (BOM) — TIDA-01215

TIDRPE1.PDF (257 K)

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

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Assembly drawing — TIDA-01215

TIDRPE2.PDF (114 K)

Detailed overview of design layout for component placement

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CAD/CAE symbol — TIDA-01215

TIDRPE4.ZIP (2164 K)

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

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Gerber file — TIDA-01215

TIDCD24.ZIP (978 K)

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

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PCB layout — TIDA-01215

TIDRPE3.PDF (2454 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC converters (integrated FET)

LM27761 — Low-Noise Regulated Inverter with Integrated LDO

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

Clock jitter cleaners

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

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)

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

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

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

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

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

Transmitters

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

Data sheet: PDF | HTML

Transmitters

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

Data sheet: PDF | HTML

Transmitters

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

Data sheet: PDF | HTML

Transmitters

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

Data sheet: PDF | HTML

Transmitters

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

Data sheet: PDF | HTML

Transmitters

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

Data sheet: PDF | HTML

Transmitters

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

Data sheet: PDF | HTML

Transmitters

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

Data sheet: PDF | HTML

Transmitters

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

Data sheet: PDF | HTML

Transmitters

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

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

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 (...)

Not available on TI.com

TI’s Standard Terms and Conditions for Evaluation Items apply.

Software

GUI for evaluation module (EVM)

SLAC722 — DAC38RF8x EVM GUI

Supported products & hardware

Products

High-speed DACs (>10 MSPS)

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

Transmitters

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)

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

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

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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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