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Highspeed-DACs (> 10 MSPSS)
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DAC39RF20

AKTIV

HF-Abtast-Digital-Analog-Wandler, 16 Bit, 2 Kanäle, 44 GSPS und analoge Bandbreite von 20 GHz

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DAC39RF20

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Resolution (Bits) 16 Number of DAC channels 2 Interface type JESD204B, JESD204C Sample/update rate (Msps) 22000, 44000 Features Ultra High Speed Rating Catalog Interpolation 128x, 12x, 16x, 192x, 1x, 24x, 256x, 32x, 48x, 4x, 64x, 6x, 8x, 96x Power consumption (typ) (mW) 4100 SFDR (dB) 70 Architecture Current Source Operating temperature range (°C) -40 to 85 Reference type Ext, Int
Resolution (Bits) 16 Number of DAC channels 2 Interface type JESD204B, JESD204C Sample/update rate (Msps) 22000, 44000 Features Ultra High Speed Rating Catalog Interpolation 128x, 12x, 16x, 192x, 1x, 24x, 256x, 32x, 48x, 4x, 64x, 6x, 8x, 96x Power consumption (typ) (mW) 4100 SFDR (dB) 70 Architecture Current Source Operating temperature range (°C) -40 to 85 Reference type Ext, Int
FCCSP (ANH) 289 190.44 mm² (13.8 mm × 13.8 mm)
  • 16-bit Multi-Nyquist DAC core
  • DAC sample rate:
    • NRZ, RF Modes: 22GSPS
    • DES2xL, DES2xH modes: 44GSPS
  • Maximum input data rate:
    • 12-bit, Dual channel: 21GSPS/ch
    • 16-bit, Dual channel: 15.75GSPS/ch
    • 16-bit, Single channel: 22GSPS
  • -3dB Output Bandwidth: 22GHz
  • Performance at fOUT = 8.9GHz, DES2XL, IOUT=40mA
    • Noise floor (small signal, DEM/Dither off): –162dBFS/Hz
    • SFDR (-0.1dBFS): –64dBc
    • IMD3 (-7dBFS each tone) : –67dBc
    • Additive phase noise, 10kHz offset: -133dBc/Hz
  • Optional PLL/VCO for DAC clock generation
  • Four integrated digital up-converters (DUC)
    • Interpolation: 1x, 4x, 6x, 8x to 256x
    • Complex baseband DUC for I/Q output
    • Complex to real upconversion for direct RF sampling
    • 64-bit frequency resolution NCOs
    • Phase continuous, synchronous and reset options with frequency hopping
  • Programmable FIR equalizer at DUC input or DAC input
  • Direct digital synthesis (DDS) functions
    • Four piecewise linear waveform generators
      • 16 Prestored waveforms
      • 256 Total vectors
      • Automatic or synchronous external triggers
    • Frequency, amplitude, phase interface streaming
  • JESD204C Interface
    • 16 Lanes at up to 32.5Gbps
    • Class C-S, subclass-1 compatible
  • Automatic clock and SYSREF calibration and tracking
  • 16-bit Multi-Nyquist DAC core
  • DAC sample rate:
    • NRZ, RF Modes: 22GSPS
    • DES2xL, DES2xH modes: 44GSPS
  • Maximum input data rate:
    • 12-bit, Dual channel: 21GSPS/ch
    • 16-bit, Dual channel: 15.75GSPS/ch
    • 16-bit, Single channel: 22GSPS
  • -3dB Output Bandwidth: 22GHz
  • Performance at fOUT = 8.9GHz, DES2XL, IOUT=40mA
    • Noise floor (small signal, DEM/Dither off): –162dBFS/Hz
    • SFDR (-0.1dBFS): –64dBc
    • IMD3 (-7dBFS each tone) : –67dBc
    • Additive phase noise, 10kHz offset: -133dBc/Hz
  • Optional PLL/VCO for DAC clock generation
  • Four integrated digital up-converters (DUC)
    • Interpolation: 1x, 4x, 6x, 8x to 256x
    • Complex baseband DUC for I/Q output
    • Complex to real upconversion for direct RF sampling
    • 64-bit frequency resolution NCOs
    • Phase continuous, synchronous and reset options with frequency hopping
  • Programmable FIR equalizer at DUC input or DAC input
  • Direct digital synthesis (DDS) functions
    • Four piecewise linear waveform generators
      • 16 Prestored waveforms
      • 256 Total vectors
      • Automatic or synchronous external triggers
    • Frequency, amplitude, phase interface streaming
  • JESD204C Interface
    • 16 Lanes at up to 32.5Gbps
    • Class C-S, subclass-1 compatible
  • Automatic clock and SYSREF calibration and tracking

The DAC39RF20 is a single and dual channel digital-to-analog converter (DAC) with 16-bit resolution. With an external full rate clock, the devices support 22GSPS with single edge sampling modes (NRZ and RF) and 44GSPS in dual edge sampling modes (DES2XL, DES2XH). When using the internal PLL/VCO, the devices support 17GSPS with single edge sampling modes (NRZ and RF) and 34GSPS in dual edge sampling modes (DES2XL, DES2XH). The devices can be used as noninterpolating or interpolating DACs for either direct RF sampling or complex baseband signal generation. The maximum input data rate for two channels is 21GSPS (12-bit resolution) or 15.75GSPS (16-bit resolution). The maximum rate for one channel is 22GSPS (16-bit resolution). The device can generate signals greater than 10GHz bandwidth at frequencies exceeding 20GHz, enabling direct sampling through Ku band.

The DAC39RF20 is a single and dual channel digital-to-analog converter (DAC) with 16-bit resolution. With an external full rate clock, the devices support 22GSPS with single edge sampling modes (NRZ and RF) and 44GSPS in dual edge sampling modes (DES2XL, DES2XH). When using the internal PLL/VCO, the devices support 17GSPS with single edge sampling modes (NRZ and RF) and 34GSPS in dual edge sampling modes (DES2XL, DES2XH). The devices can be used as noninterpolating or interpolating DACs for either direct RF sampling or complex baseband signal generation. The maximum input data rate for two channels is 21GSPS (12-bit resolution) or 15.75GSPS (16-bit resolution). The maximum rate for one channel is 22GSPS (16-bit resolution). The device can generate signals greater than 10GHz bandwidth at frequencies exceeding 20GHz, enabling direct sampling through Ku band.
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Technische Dokumentation

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* Datenblatt DAC39RF20: 22GSPS or 44GSPS, 16-Bit, Single and Dual Channel, Multi-Nyquist Digital-to-Analog Converter (DAC) with JESD204C Interface datasheet (Rev. A) PDF | HTML 21.04.2026

Design und Entwicklung

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Evaluierungsplatine

DAC39RF20EVM — DAC39RF20 Evaluierungsmodul

The DAC39RF20EVM is an evaluation module (EVM) for evaluating the DAC39RF20 family of digital-to-analog converters (DACs) from Texas Instruments. The EVM can be used to evaluate the performance of the DAC up to 22GSPS sampling rate. The EVM is designed to work with the field-programmable gate array (...)

Benutzerhandbuch: PDF | HTML
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DAC39RF10-OUTPUT-FULLSCALE-CALC — Output fullscale calculation tool for DAC39RFxx.

Calculator tool for determining fullscale level of DAC39RFxx output.
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DAC39RF20-LATENCY-CALC — DAC39RF20 Latency Calculator

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DAC39RF2X-DC-INTERFACE-CALC — DAC39RF2X DC Interface calculator

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DAC39RF2X-SYSREF-FREQ-CALC — DAC39RF2X SYSREF Frequency Calculator

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