TIDA-01215 Reference Design

Texas Instruments

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

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 DACsEnables Optimal Spur and Phase Noise PerformanceReduces Board AreaLowers Bill of Materials (BOM) Cost
Applications
  • Baseband unit (BBU)
  • Small cell base station
  • Lab & field Instrumentation
  • Electronic warfare
  • Seeker front end
  • Global positioning system receiver
  • Outdoor backhaul unit
  • Active antenna system mMIMO (AAS)
  • Radar
  • Signal generator
  • Command & data handling (C&DH)
  • Indoor backhaul
  • Macro remote radio unit (RRU)
Product Categories
  • Data converters