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

(ACTIVE) TIDA-01215

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Description

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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Bill of Materials (BOM)

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Part Number Buy from Texas Instruments or Third Party Buy from Authorized Distributor Status

DAC38RF82EVM:
DAC38RF82 Evaluation Module

$899.00(USD)


Pricing may vary.



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TI Devices (22)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
DAC38RF80  Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)  Digital-to-analog converters (DACs)  Not Available View Design Kits & Evaluation Modules
DAC38RF82  Dual-Channel, 14-Bit, 9-GSPS, 1x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)  Digital-to-analog converters (DACs)  Not Available View Design Kits & Evaluation Modules
DAC38RF83  Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)  Digital-to-analog converters (DACs)  Not Available View Design Kits & Evaluation Modules
DAC38RF84  14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)  Digital-to-analog converters (DACs)  Not Available View Design Kits & Evaluation Modules
DAC38RF85  14-Bit, 9-GSPS, 6x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)  Digital-to-analog converters (DACs)  Not Available View Design Kits & Evaluation Modules
DAC38RF86  Dual-Channel, 14-Bit, 9-GSPS, 6x-24x Interpolating, 9 GHz GSM PLL Digital-to-Analog Converter (DAC)  Digital-to-analog converters (DACs)  Not Available View Design Kits & Evaluation Modules
DAC38RF87  Dual-Channel, 14-Bit, 6.2-GSPS, 6x-24x Interpolating, 6 GHz GSM PLL Digital-to-Analog Converter  Digital-to-analog converters (DACs)  Not Available View Design Kits & Evaluation Modules
DAC38RF89  Dual-Channel, 14-Bit, 8.4-GSPS, 1x-24x Interpolating, 5 & 7.5 GHz PLL Digital-to-Analog Converter  Digital-to-analog converters (DACs)  Not Available View Design Kits & Evaluation Modules
DAC38RF90  Dual-Channel, 14-Bit, 9-GSPS, 12x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)  Digital-to-analog converters (DACs)  Not Available View Design Kits & Evaluation Modules
DAC38RF93  Dual-Channel, 14-Bit, 9-GSPS, 12x-24x Interpolating, 6 & 9 GHz PLL Digital-to-Analog Converter (DAC)  Digital-to-analog converters (DACs)  Not Available View Design Kits & Evaluation Modules
DAC38RF96  Dual-Channel, 14-Bit, 9-GSPS, 12x-24x Interpolating, 9 GHz GSM PLL Digital-to-Analog Converter (DAC)  Digital-to-analog converters (DACs)  Not Available View Design Kits & Evaluation Modules
DAC38RF97  Dual-Channel, 14-Bit, 6-GSPS, 12x-24x Interpolating, 6-GHz GSM PLL Digital-to-Analog Converter (DAC)  Digital-to-analog converters (DACs)  Not Available View Design Kits & Evaluation Modules
LM27761  Low-Noise Regulated Inverter with Integrated LDO  DC/DC switching regulators  Sample & Buy View Design Kits & Evaluation Modules
LMK04828  Ultra Low Jitter Synthesizer and Jitter Cleaner  Clock jitter cleaners  Sample & Buy View Design Kits & Evaluation Modules
LP5907  250mA Ultra-Low-Noise Low-IQ LDO  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS2400  Overvoltage/Undervoltage Protection IC in SOT-23-5  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS62085  3-A Step-Down Converter with DCS-Control and Hiccup Short Circuit Protection in 2x2 HotRod Package  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS62095  4A Synchronous Step Down Converter with DCS Control  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS74401  Single-Output LDO, 3A, Adj (0.8V to 3.3V), Fast Transient Response, Programmable Soft Start  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A47  36V, 1A, 4.17μVRMS, RF Low-Dropout (LDO) Voltage Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A8101  Low-Noise, High-Bandwidth PSRR, Low-Dropout 1-A Linear Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TXS0108E  8-Bit Bidirectional Voltage-Level Shifter For Open-Drain And Push-Pull Application  Voltage level translation  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM27761 Download Download
LMK04828 Download Download
LP5907 Download Download
Download -
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TPS2400 Download Download
TPS62085 Download Download
TPS62095 Download Download
TPS74401 Download -
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TPS7A47 Download Download
TPS7A8101 Download Download
TXS0108E Download Download
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Datasheet (1)
Title Abstract Type Size (KB) Date Views
PDF 3733 31 Jul 2017
User guides (2)
Title Abstract Type Size (KB) Date Views
PDF 5086 24 Mar 2017 116
PDF 1455 22 Aug 2016 18
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 978 21 Dec 2016 1 1
ZIP 2164 21 Dec 2016 14
PDF 2454 21 Dec 2016 12
PDF 114 21 Dec 2016 4
PDF 257 21 Dec 2016 7
PDF 189 21 Dec 2016 32
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Software (1)



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